Cisco Security Advisory

SNMP Version 3 Authentication Vulnerabilities

Advisory ID: cisco-sa-20080610-snmpv3

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20080610-snmpv3

Revision 1.9

Last Updated  2012 November 16 15:40  UTC (GMT)

For Public Release 2008 June 10 00:00  UTC (GMT)


Summary

Multiple Cisco products contain either of two authentication vulnerabilities in the Simple Network Management Protocol version 3 (SNMPv3) feature. These vulnerabilities can be exploited when processing a malformed SNMPv3 message. These vulnerabilities could allow the disclosure of network information or may enable an attacker to perform configuration changes to vulnerable devices. The SNMP server is an optional service that is disabled by default in Cisco products. Only SNMPv3 is impacted by these vulnerabilities. Workarounds are available for mitigating the impact of the vulnerabilities described in this document.

Note:  SNMP versions 1, 2 and 2c are not impacted by these vulnerabilities.

The United States Computer Emergency Response Team (US-CERT) has assigned Vulnerability Note VU#878044 leavingcisco.com to these vulnerabilities.

Common Vulnerabilities and Exposures (CVE) identifier CVE-2008-0960 leavingcisco.com has also been assigned to these vulnerabilities.

This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20080610-snmpv3.

Affected Products

Vulnerable Products

The following Cisco products are vulnerable.

  • Cisco IOS
  • Cisco IOS-XR
  • Cisco Catalyst Operating System (CatOS)
  • Cisco NX-OS
  • Cisco Application Control Engine (ACE) Module
  • Cisco ACE Appliance
  • Cisco ACE XML Gateway
  • Cisco MDS 9000 Series Multilayer Fabric Switches
  • Cisco Wireless LAN Controller (WLC)
  • Cisco Application and Content Networking System (ACNS)
  • Cisco Wide Area Application Services (WAAS)
  • Cisco MGX 8830, 8850 and 8880 Media Gateway and Switch
  • Cisco Internet Streamer CDS
  • Cisco 8472DVB Set Top Box
  • Cisco 8485DVB Set Top Box

Note:  The SNMP server is disabled by default. These vulnerabilities only impact devices that are configured for SNMPv3.

To determine the version of SNMP configured in Cisco IOS, CatOS and IOS-XR, log in to the device and issue the show snmp group command. The security model field indicates the version of SNMP configured. The output "usm" is the abbreviation for user-based security model and this indicates SNMPv3 is configured.

Cisco IOS
router#show snmp group
groupname: test                             security model:v3 auth 
readview : v1default                        writeview: <no writeview specified>        
notifyview: <no notifyview specified>       
row status: active

Cisco CatOS
5500-1 (enable) show snmp group
Security Model: v3
Security Name: userv3
Group Name: groupv3
Storage Type: nonvolatile
Row Status: active

Cisco IOS-XR
RP/0/RP0/CPU0:ios#show snmp group
groupname: test                          security model:usm
readview : v1default                     writeview: -
notifyview: v1default
row status: nonVolatile  

IronPort

IronPort C-Series, X-Series, and M-Series appliances utilize code covered by this advisory, but are not susceptible to any security risk. IronPort C-Series, X-Series, and M-Series incorporate the libraries under the advisory to provide anonymous read-only access to system health data. There is no risk of escalated authorization privileges allowing a 3rd party to make any configuration changes to the IronPort devices. IronPort S-Series and Encryption Appliances are not affected by this advisory. This announcement has also been posted on the IronPort Support Portal, available to IronPort customers: https://supportportal.ironport.com/irppcnctr/srvcd?u=http://secure-support.soma.ironport.com/announcement&sid=900016 leavingcisco.com

Products Confirmed Not Vulnerable

The following Cisco products are confirmed not vulnerable:

  • Cisco PIX Security Appliances
  • Cisco ASA Security Appliances
  • Cisco Firewall Services Module (FWSM)
  • Cisco Security Monitoring, Analysis, and Response System (MARS)
  • Cisco Network Admission Control (NAC) Appliance
  • CiscoWorks Wireless LAN Solution Engine (WLSE)
  • Cisco BTS 10200 Softswitch
  • Cisco Content Services Gateway
  • Cisco Network Registrar
  • Cisco Access Registrar
  • Cisco PSTN Gateway (PGW2200)

No other Cisco products are currently known to be affected by these vulnerabilities.

Details

SNMP defines a standard mechanism for remote management and monitoring of devices in an Internet Protocol (IP) network.

There are three general types of SNMP operations: "get" requests to request information, "set" requests that modify the configuration of a remote device, and "trap" messages that provide a monitoring function. SNMP requests and traps are transported over User Datagram Protocol (UDP) and are received at the assigned destination port numbers 161 and 162, respectively.

SNMPv3 provides secure access to devices by authenticating and encrypting packets over the network. RFC2574 leavingcisco.com defines the use of HMAC-MD5-96 and HMAC-SHA-96 as the possible authentication protocols for SNMPv3.

Vulnerabilities have been identified in the authentication code of multiple SNMPv3 implementations. This advisory identifies two vulnerabilities that are almost identical. Both are specifically related to malformed SNMPv3 packets that manipulate the Hash Message Authentication Code (HMAC). The two vulnerabilities may impact both Secure Hashing Algorithm-1 (SHA-1) and Message-Digest Algorithm 5 (MD5). The vulnerabilities described in this document can be successfully exploited using spoofed SNMPv3 packets.

These vulnerabilities are documented in the following Cisco Bug IDs:

Note:  Although multiple software defects are listed, this advisory only identifies two vulnerabilities. Because different Cisco products require their own fixes, additional Bug IDs have been assigned.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0.

CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response.

Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks.

Cisco has provided an FAQ to answer additional questions regarding CVSS at
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html .

Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at
http://intellishield.cisco.com/security/alertmanager/cvss .

CSCsf04754 - IOS SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsf04754

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 8.3

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

CSCsf30109 - IOS-XR SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsf30109

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 8.3

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

CSCsf29976 - CatOS SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsf29976

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 8.3

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

CSCsq62662 - ACE XML Gw SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsq62662

CVSS Base Score - 9.3

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Medium

None

Complete

Complete

Complete

CVSS Temporal Score - 8.4

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed

CSCsq60664 - ACE Appliance SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsq60664

CVSS Base Score - 6.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Medium

None

Partial

Partial

Partial

CVSS Temporal Score - 5.6

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

CSCsq60695 - ACE Module SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsq60695

CVSS Base Score - 6.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Medium

None

Partial

Partial

Partial

CVSS Temporal Score - 5.6

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

CSCsq60582 - Nexus SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsq60582

CVSS Base Score - 9.3

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Medium

None

Complete

Complete

Complete

CVSS Temporal Score - 8.4

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed

CSCsq77604 - WLC SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsq77604

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

CSCsv79388 - ACNS SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsv79388

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed

CSCsv82725 - WAAS SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCsv82725

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed

CSCte57592 - MGX SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCte57592

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed

CSCti05966 - Cisco Internet Streamer CDS SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCti05966

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed


CSCub72133 - Cisco 8472DVB Set Top Box SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCub72133

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed



CSCub72121 - Cisco 8485DVB Set Top Box SNMPv3 HMAC Authentication issue ( registered customers only)

Calculate the environmental score of CSCub72121

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 9

Exploitability

Remediation Level

Report Confidence

Functional

Workaround

Confirmed


Impact

Successful exploitation of these vulnerabilities could result in the disclosure of sensitive information on a device or allow an attacker to make configuration changes to a vulnerable device that is based on the SNMP configuration.

Software Versions and Fixes

When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.

In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.

Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table.

Major Release

Availability of Repaired Releases

Affected 12.0-Based Releases

First Fixed Release

Recommended Release

12.0

Not Vulnerable

 

12.0DA

Not Vulnerable

 

12.0DB

12.0(2)DB

12.4(18b)

12.0DC

Vulnerable; first fixed in 12.3T

12.4(18b)

12.0S

12.0(28)S1

12.0(32)S5

12.0(33)S

 

12.0SC

12.0(7)SC

 

12.0SL

Vulnerable; first fixed in 12.0S

 

12.0SP

Vulnerable; first fixed in 12.0S

 

12.0ST

Vulnerable; first fixed in 12.0S

 

12.0SX

Vulnerable; first fixed in 12.0S

 

12.0SY

12.0(32)SY1

 

12.0SZ

12.0(30)SZ4

 

12.0T

12.0(1)T

12.4(18b)

12.0W

Not Vulnerable

 

12.0WC

12.0(5)WC16

 

12.0WT

Not Vulnerable

 

12.0XA

Not Vulnerable

 

12.0XB

Not Vulnerable

 

12.0XC

Not Vulnerable

 

12.0XD

Not Vulnerable

 

12.0XE

12.0(1)XE

 

12.0XF

12.0(2)XF1

12.0(2)XF

12.0XG

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XH

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XI

Releases prior to 12.0(4)XI2 are vulnerable, release 12.0(4)XI2 and later are not vulnerable; first fixed in 12.2

12.4(18b)

12.0XJ

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XK

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XL

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XM

Vulnerable; first fixed in 12.0T

12.4(18b)

12.0XN

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XQ

Vulnerable; first fixed in 12.0T

12.4(18b)

12.0XR

Vulnerable; first fixed in 12.2

12.4(18b)

12.0XS

Vulnerable; first fixed in 12.1E

 

12.0XV

Vulnerable; first fixed in 12.0T

12.4(18b)

12.0XW

Not Vulnerable

 

Affected 12.1-Based Releases

First Fixed Release

Recommended Release

12.1

Vulnerable; first fixed in 12.2

12.4(18b)

12.1AA

Vulnerable; first fixed in 12.2

12.4(18b)

12.1AX

Vulnerable; first fixed in 12.2EY

 

12.1AY

Vulnerable; first fixed in 12.1EA

12.1(22)EA11

12.1AZ

Vulnerable; first fixed in 12.1EA

12.1(22)EA11

12.1CX

Releases prior to 12.1(7)CX are vulnerable, release 12.1(7)CX and later are not vulnerable; first fixed in 12.2

12.4(18b)

12.1DA

Vulnerable; first fixed in 12.2DA

 

12.1DB

Vulnerable; first fixed in 12.3T

12.4(18b)

12.1DC

Vulnerable; first fixed in 12.3T

12.4(18b)

12.1E

12.1(1)E2

 

12.1EA

12.1(22)EA10

12.1(22)EA11

12.1EB

Vulnerable; contact TAC

 

12.1EC

Vulnerable; first fixed in 12.3BC

 

12.1EO

12.1(19)EO6

12.2(29)SVD1; Available on 13-JUN-2008

12.1EU

Vulnerable; first fixed in 12.2SG

12.2(25)EWA14

12.2(31)SGA7

12.2(44)SG

12.1EV

Vulnerable; first fixed in 12.2SV

12.2(29)SVD1; Available on 13-JUN-2008

12.1EW

Vulnerable; first fixed in 12.2EW

12.2(25)EWA14

12.2(31)SGA7

12.2(44)SG

12.1EX

Vulnerable; first fixed in 12.1E

 

12.1EY

Vulnerable; first fixed in 12.1E

 

12.1EZ

Vulnerable; first fixed in 12.1E

 

12.1GA

Vulnerable; first fixed in 12.2

12.4(18b)

12.1GB

Vulnerable; first fixed in 12.2

12.4(18b)

12.1T

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XA

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XB

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XC

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XD

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XE

Vulnerable; first fixed in 12.1E

 

12.1XF

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XG

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XH

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XI

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XJ

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XK

Not Vulnerable

 

12.1XL

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XM

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XN

Not Vulnerable

 

12.1XO

Not Vulnerable

 

12.1XP

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XQ

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XR

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XS

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XT

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XU

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XV

Vulnerable; first fixed in 12.3

12.4(18b)

12.1XW

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XX

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XY

Vulnerable; first fixed in 12.2

12.4(18b)

12.1XZ

Vulnerable; first fixed in 12.2

12.4(18b)

12.1YA

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YB

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YC

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YD

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YE

Releases prior to 12.1(5)YE6 are vulnerable, release 12.1(5)YE6 and later are not vulnerable; first fixed in 12.3

12.4(18b)

12.1YF

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YG

Not Vulnerable

 

12.1YH

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YI

Vulnerable; first fixed in 12.3

12.4(18b)

12.1YJ

Vulnerable; first fixed in 12.1EA

12.1(22)EA11

Affected 12.2-Based Releases

First Fixed Release

Recommended Release

12.2

12.2(26c)12.2(27c)12.2(28d)12.2(29b)12.2(40)

12.4(18b)

12.2B

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2BC

Vulnerable; first fixed in 12.3BC

 

12.2BW

Vulnerable; first fixed in 12.3

12.4(18b)

12.2BY

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2BZ

Vulnerable; first fixed in 12.3XI

 

12.2CX

Vulnerable; first fixed in 12.3BC

 

12.2CY

Vulnerable; first fixed in 12.3BC

 

12.2CZ

Not Vulnerable

 

12.2DA

12.2(10)DA4

12.2(12)DA11

 

12.2DD

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2DX

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2EU

Vulnerable; first fixed in 12.2SG

12.2(25)EWA14

12.2(31)SGA7

12.2(44)SG

12.2EW

12.2(18)EW712.2(20)EW4

12.2(25)EWA14

12.2(31)SGA7

12.2(44)SG

12.2EWA

12.2(20)EWA312.2(25)EWA1112.2(25)EWA712.2(25)EWA8

12.2(25)EWA14

12.2EX

12.2(35)EX

12.2(44)EX; Available on 26-JUN-2008

12.2EY

12.2(37)EY

 

12.2EZ

Vulnerable; first fixed in 12.2SEE

 

12.2FX

Vulnerable; first fixed in 12.2SEE

 

12.2FY

Vulnerable; first fixed in 12.2SEG

 

12.2FZ

Vulnerable; first fixed in 12.2SE

12.2(44)SE2

12.2IXA

Vulnerable; migrate to any release in 12.2IXD

 

12.2IXB

Not Vulnerable

 

12.2IXC

Not Vulnerable

 

12.2IXD

Not Vulnerable

 

12.2IXE

Not Vulnerable

 

12.2IXF

Not Vulnerable

 

12.2JA

Vulnerable; first fixed in 12.3JA

 

12.2JK

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.2MB

Vulnerable; first fixed in 12.2SW

 

12.2MC

12.2(15)MC2h

12.4(18b)

12.2S

12.2(14)S1812.2(18)S1312.2(20)S1312.2(25)S11

12.2(31)SB12

12.2(33)SRC1

12.2SB

12.2(28)SB412.2(31)SB212.2(31)SB3x

12.2(31)SB12

12.2SBC

Vulnerable; first fixed in 12.2SB

12.2(31)SB12

12.2SCA

Not Vulnerable

 

12.2SE

12.2(35)SE

12.2(44)SE2

12.2SEA

Vulnerable; first fixed in 12.2SEE

 

12.2SEB

Vulnerable; first fixed in 12.2SEE

 

12.2SEC

Vulnerable; first fixed in 12.2SEE

 

12.2SED

Vulnerable; first fixed in 12.2SEE

 

12.2SEE

12.2(25)SEE3

 

12.2SEF

12.2(25)SEF2

12.2(44)SE2

12.2SEG

12.2(25)SEG2

 

12.2SG

12.2(25)SG1

12.2(31)SG1

12.2(31)SG2

12.2(37)SG

12.2(44)SG

12.2SGA

Not Vulnerable

 

12.2SL

Not Vulnerable

 

12.2SM

12.2(29)SM2

12.2(29)SM3

12.2SO

12.2(18)SO7

12.2(29)SVD1; Available on 13-JUN-2008

12.2SRA

12.2(33)SRA1

 

12.2SRB

Not Vulnerable

 

12.2SRC

Not Vulnerable

 

12.2SU

Not Vulnerable

 

12.2SV

12.2(27)SV5

12.2(28)SV1

12.2(29)SV3

12.2(29a)SV1

12.2(29b)SV

12.2(29)SVD1; Available on 13-JUN-2008

12.2SVA

Not Vulnerable

 

12.2SVC

Not Vulnerable

 

12.2SVD

Not Vulnerable

 

12.2SW

12.2(25)SW8

 

12.2SX

Vulnerable; first fixed in 12.2SXF

12.2(18)SXF15; Available on 08-AUG-2008

12.2SXA

Vulnerable; first fixed in 12.2SXF

12.2(18)SXF15; Available on 08-AUG-2008

12.2SXB

Vulnerable; first fixed in 12.2SXF

12.2(18)SXF15; Available on 08-AUG-2008

12.2SXD

12.2(18)SXD7a

12.2(18)SXF15; Available on 08-AUG-2008

12.2SXE

12.2(18)SXE6a

12.2(18)SXF15; Available on 08-AUG-2008

12.2SXF

12.2(18)SXF10a

12.2(18)SXF12a

12.2(18)SXF6

12.2(18)SXF15; Available on 08-AUG-2008

12.2SXH

Not Vulnerable

 

12.2SY

Not Vulnerable

 

12.2SZ

Vulnerable; first fixed in 12.2S

12.2(31)SB12

12.2(33)SRC1

12.2T

Vulnerable; first fixed in 12.3

12.4(18b)

12.2TPC

12.2(8)TPC10b

 

12.2UZ

Vulnerable; first fixed in 12.2SB

12.2(31)SB12

12.2XA

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XB

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XC

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2XD

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XE

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XF

Vulnerable; first fixed in 12.3BC

 

12.2XG

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XH

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XI

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XJ

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XK

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XL

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XM

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XN

12.2(33)XN1

12.4(18b)

12.2XNA

Not Vulnerable

 

12.2XO

Not Vulnerable

 

12.2XQ

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XR

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XS

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XT

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XU

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XV

Vulnerable; first fixed in 12.3

12.4(18b)

12.2XW

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YA

12.2(4)YA12

12.4(18b)

12.2YB

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YC

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YD

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YE

Not Vulnerable

 

12.2YF

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YG

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YH

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YJ

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YK

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YL

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YM

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YN

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YO

Vulnerable; migrate to any release in 12.2SY

12.2(18)SXF15; Available on 08-AUG-2008

12.2YP

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YQ

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YR

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YS

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YT

Vulnerable; first fixed in 12.3

12.4(18b)

12.2YU

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YV

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YW

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YX

Not Vulnerable

 

12.2YY

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2YZ

Vulnerable; first fixed in 12.2S

12.2(31)SB12

12.2(33)SRC1

12.2ZA

Vulnerable; first fixed in 12.2SXF

12.2(18)SXF15; Available on 08-AUG-2008

12.2ZB

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2ZC

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2ZD

Vulnerable; contact TAC

 

12.2ZE

Vulnerable; first fixed in 12.3

12.4(18b)

12.2ZF

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2ZG

Vulnerable; first fixed in 12.3YG

12.3(2)XA7

12.4(15)T5

12.4(18b)

12.2ZH

12.2(13)ZH9

12.2(13)ZH11

12.2ZJ

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2ZL

Vulnerable; first fixed in 12.3T

12.4(15)T5

12.4(18b)

12.2ZP

Vulnerable; first fixed in 12.3T

12.4(18b)

12.2ZU

12.2(18)ZU1

12.2(33)SXH3; Available on 03-JUL-2008

12.2ZY

Not Vulnerable

 

Affected 12.3-Based Releases

First Fixed Release

Recommended Release

12.3

12.3(17c)

12.3(18a)

12.3(19a)

12.3(20a)

12.3(21)

12.4(18b)

12.3B

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3BC

12.3(17b)BC3

12.3(21)BC

 

12.3BW

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3EU

Not Vulnerable

 

12.3JA

12.3(11)JA

12.3(7)JA5

12.3(8)JA3; Available on 18-SEP-2008

 

12.3JEA

Not Vulnerable

 

12.3JEB

Not Vulnerable

 

12.3JEC

Not Vulnerable

 

12.3JK

12.3(2)JK2

12.3(8)JK1

12.3(2)JK4; Available on 30-JUN-2008

12.3(8)JK2; Available on 30-JUN-2008

12.3JL

12.3(2)JL1

12.3(2)JL4

12.3JX

Vulnerable; contact TAC

12.3(7)JX11

12.3T

12.3(11)T11

12.4(18b)

12.3TPC

12.3(4)TPC11b

 

12.3VA

Vulnerable; contact TAC

 

12.3XA

12.3(2)XA6

12.3(2)XA7

12.3XB

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3XC

12.3(2)XC5

12.4(15)T5

12.4(18b)

12.3XD

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3XE

12.3(2)XE5

12.4(15)T5

12.4(18b)

12.3XF

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3XG

Vulnerable; first fixed in 12.3YG

12.4(15)T5

12.4(18b)

12.3XH

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3XI

12.3(7)XI8a

 

12.3XJ

Vulnerable; first fixed in 12.3YX

12.3(14)YX11

12.4(15)T5

12.3XK

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3XQ

Vulnerable; first fixed in 12.4

12.4(18b)

12.3XR

12.3(7)XR7

12.4(15)T5

12.4(18b)

12.3XS

Vulnerable; first fixed in 12.4

12.4(18b)

12.3XU

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3XW

Vulnerable; first fixed in 12.3YX

12.3(14)YX11

12.4(15)T5

12.3XY

Vulnerable; first fixed in 12.3T

12.4(18b)

12.3YA

Vulnerable; first fixed in 12.4

12.4(15)T5

12.4(18b)

12.3YD

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3YF

Vulnerable; first fixed in 12.3YX

12.3(14)YX11

12.4(15)T5

12.3YG

12.3(8)YG6

12.4(15)T5

12.3YH

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3YI

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3YJ

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3YK

12.3(11)YK3

12.4(15)T5

12.3YM

12.3(14)YM8

12.3(14)YM12

12.3YQ

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3YS

12.3(11)YS2

12.4(15)T5

12.3YT

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.3YU

Vulnerable; first fixed in 12.4XB

 

12.3YX

12.3(14)YX4

12.3(14)YX11

12.3YZ

12.3(11)YZ2

 

Affected 12.4-Based Releases

First Fixed Release

Recommended Release

12.4

12.4(10)

12.4(3f)

12.4(5c)

12.4(7c)

12.4(8b)

12.4(18b)

12.4JA

Not Vulnerable

 

12.4JK

Not Vulnerable

 

12.4JMA

Not Vulnerable

 

12.4JMB

Not Vulnerable

 

12.4JMC

Not Vulnerable

 

12.4JX

Not Vulnerable

 

12.4MD

Not Vulnerable

 

12.4MR

12.4(9)MR

 

12.4SW

Not Vulnerable

 

12.4T

12.4(11)T

12.4(2)T6

12.4(4)T5

12.4(6)T4

12.4(9)T1

12.4(15)T5

12.4XA

Vulnerable; first fixed in 12.4T

12.4(15)T5

12.4XB

12.4(2)XB3

 

12.4XC

12.4(4)XC5

 

12.4XD

12.4(4)XD4

12.4(15)T5

12.4XE

12.4(6)XE2

12.4(15)T5

12.4XF

Not Vulnerable

 

12.4XG

Not Vulnerable

 

12.4XJ

Not Vulnerable

 

12.4XK

Not Vulnerable

 

12.4XL

Not Vulnerable

 

12.4XM

Not Vulnerable

 

12.4XN

Not Vulnerable

 

12.4XQ

Not Vulnerable

 

12.4XT

Not Vulnerable

 

12.4XV

Not Vulnerable

 

12.4XW

Not Vulnerable

 

12.4XY

Not Vulnerable

 

12.4XZ

Not Vulnerable

 

Cisco CatOS

The following table lists fixed Cisco Catalyst Operating System (CatOS) software.

Affected Product

Affected Release

First Fixed Release

Cisco Catalyst Operating System (CatOS)

6.x

6.4(23)

7.x

7.6(19)

8.5.x

8.5(7)

8.6.x

8.6(1)

Cisco IOS XR

The following table lists fixed Cisco IOS XR software.

Cisco IOS XR Version

SMU ID

SMU Name

3.2.2

AA01681

hfr-base-3.2.2.CSCsf30109

3.2.3

AA01682

hfr-base-3.2.3.CSCsf30109

3.2.4

AA01683

hfr-base-3.2.4.CSCsf30109

3.2.6

AA01684

hfr-base-3.2.6.CSCsf30109

3.3.0

AA01685

hfr-base-3.3.0.CSCsf30109

3.3.0

AA01690

c12k-base-3.3.0.CSCsf30109

3.3.1

AA01686

hfr-base-3.3.1.CSCsf30109

3.3.1

AA01688

c12k-base-3.3.1.CSCsf30109

3.3.2

Not vulnerable

Not vulnerable

3.4.x

Not vulnerable

Not vulnerable

Cisco NX-OS

The following table lists fixed Cisco NX-OS software.

Affected Product

Affected Release

First Fixed Release

Cisco NX-OS

4.0.(1)a

4.0.(2) Available June 2008

Cisco ACE Products

The following table lists fixed Cisco Application Control Engine (ACE) software.

Affected Product

Affected Release

First Fixed Release

Cisco Application Control Engine (ACE) Module

3.0(0) A1(6.x)

A2(1.0)

A2(1.0a)

A2(1.1)

Cisco Application Control Engine (ACE) Appliance

A1(7.0)

A1(7.0a)

A1(7.0b)

A1(7.0c)

A1(8.0)

A1(8.0a)

Cisco Application Control Engine (ACE) XML Gateway

4.x

5.x

6.0

6.0.1 Available June 2008

Cisco MDS 9000 SAN-OS

The following table lists fixed Cisco MDS 9000 SAN-OS software.

Affected Product

Affected Release

First Fixed Release

Cisco MDS 9000 SAN-OS software

2.1

3.0

3.2

3.3(1a)

3.3(1c)

3.4.1 Available June 2008

Cisco WLC software

The following table lists fixed Cisco WLC software.

Affected Product

Affected Release

First Fixed Release

Cisco WLC

3.x

4.x

5.0.x

5.1.x

5.2.x.x Available August 2008

Cisco ACNS software

The following table lists fixed Cisco ACNS software.

Affected Product

Affected Release

First Fixed Release

Cisco ACNS software

4.x

5.x prior to 5.5.13

5.5.13 Available March 2009

Cisco WAAS software

The following table lists fixed Cisco WAAS software.

Affected Product

Affected Release

First Fixed Release

Cisco WAAS software

4.x

4.1.3 Available February 2009

Cisco MGX software

The following table lists fixed Cisco MGX software.

Affected Product

Affected Release

First Fixed Release

Cisco MGX software

5.4.x

5.5.x

5.5.10 Available April 2010

Cisco Internet Streamer CDS software

The following table lists fixed Cisco Cisco Internet Streamer CDS software.

Affected Product

Affected Release

First Fixed Release

Cisco Internet Streamer CDS

All releases prior to first fixed release.

2.6.0


Workarounds

The following workarounds have been identified for these vulnerabilities.

Infrastructure Access Control Lists

Although it is often difficult to block traffic that transits a network, it is possible to identify traffic that should never be allowed to target infrastructure devices and block that traffic at the border of networks. Infrastructure Access Control Lists (iACLs) are a network security best practice and should be considered as a long-term addition to good network security as well as a workaround for these specific vulnerabilities. The iACL example below should be included as part of the deployed infrastructure access-list which will protect all devices with IP addresses in the infrastructure IP address range:

Note:  UDP port 161 is applicable for all versions of SNMP.


!--- Permit SNMP UDP 161 packets from
!--- trusted hosts destined to infrastructure addresses.

access-list 150 permit udp TRUSTED_HOSTS MASK INFRASTRUCTURE_ADDRESSES MASK eq 161

!--- Deny SNMP UDP 161 packets from all
!--- other sources destined to infrastructure addresses.

access-list 150 deny udp any INFRASTRUCTURE_ADDRESSES MASK eq 161

!--- Permit/deny all other Layer 3 and Layer 4 traffic in accordance
!--- with existing security policies and configurations
!--- Permit all other traffic to transit the device.

access-list 150 permit ip any any

!--- Apply iACL to relevant interfaces

interface serial 2/0
ip access-group 150 in

The white paper entitled "Protecting Your Core: Infrastructure Protection Access Control Lists" presents guidelines and recommended deployment techniques for infrastructure protection access lists.

This white paper can be obtained at the following link: http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801a1a55.shtml

Control Plane Policing

Control Plane Policing (CoPP) can be used to block untrusted SNMP access to the device. Cisco IOS software releases 12.0S, 12.2SX, 12.2S, 12.3T, 12.4, and 12.4T support the CoPP feature. CoPP can be configured on a device to protect the management and control planes and minimize the risk and effectiveness of direct infrastructure attacks by explicitly permitting only authorized traffic that is sent to infrastructure devices in accordance with existing security policies and configurations. The following example, which uses 192.168.100.1 to represent a trusted host, can be adapted to your network.


!--- Deny SNMP UDP traffic from trusted hosts to all IP addresses
!--- configured on all interfaces of the affected device so that
!--- it will be allowed by the CoPP feature


access-list 111 deny udp host 192.168.100.1 any eq 161


!--- Permit all other SNMP UDP traffic sent to all IP addresses
!--- configured on all interfaces of the affected device so that it
!--- will be policed and dropped by the CoPP feature


access-list 111 permit udp any any eq 161


!--- Permit (Police or Drop)/Deny (Allow) all other Layer3 and Layer4
!--- traffic in accordance with existing security policies and
!--- configurations for traffic that is authorized to be sent
!--- to infrastructure devices

!--- Create a Class-Map for traffic to be policed by
!--- the CoPP feature


class-map match-all drop-snmpv3-class
match access-group 111


!--- Create a Policy-Map that will be applied to the
!--- Control-Plane of the device.


policy-map drop-snmpv3-traffic
class drop-snmpv3-class
drop


!--- Apply the Policy-Map to the 
!--- Control-Plane of the device


control-plane
service-policy input drop-snmpv3-traffic

In the above CoPP example, the access control list entries (ACEs) that match the potential exploit packets with the "permit" action result in these packets being discarded by the policy-map "drop" function, while packets that match the "deny" action (not shown) are not affected by the policy-map drop function.

Please note that the policy-map syntax is different in the 12.2S and 12.0S Cisco IOS trains:

policy-map drop-snmpv3-traffic
class drop-snmpv3-class
police 32000 1500 1500 conform-action drop exceed-action drop

Additional information on the configuration and use of the CoPP feature is available at the following links: http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6642/prod_white_paper0900aecd804fa16a.html and http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtrtlimt.html

Transit Access Control Lists

Filters that deny SNMP packets using UDP port 161 should be deployed throughout the network as part of a Transit Access Control List (tACL) policy for protection of traffic that enters the network at ingress access points. This policy should be configured to protect the network device where the filter is applied and other devices behind it. Filters for SNMP packets that use UDP port 161 should also be deployed in front of vulnerable network devices so that traffic is only allowed from trusted clients.

Additional information about tACLs is available in "Transit Access Control Lists: Filtering at Your Edge:" http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801afc76.shtml

Hardening Guide Statement

Customers are advised to review the "Fortifying the Simple Network Management Protocol" section of the "Cisco Guide to Harden Cisco IOS Devices" for information on configuring an IOS device for SNMPv3 authentication and privacy: http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080120f48.shtml#fortify

Cisco IOS and SAN-OS authPriv Configuration

Enabling the SNMPv3 privacy subsystem (if it is not already in use) is a short-term workaround for users who are unable to upgrade in a timely fashion. This subsystem is used to encrypt SNMPv3 traffic using a shared secret.

In Cisco IOS, administrators can enable this workaround by using the authPriv SNMPv3 feature. Only Cisco IOS crypto images can run the authPriv feature.

In Cisco SAN-OS, administrators can enable this workaround by using the snmp-server globalEnforcePriv configuration command.

Additional information about the Cisco SAN-OS globalEnforcePriv command is available in the "Cisco MDS 9000 Family CLI Configuration Guide:" http://www.cisco.com/en/US/docs/storage/san_switches/mds9000/sw/rel_3_x/configuration/guides/cli_3_3_1/snmp.html#wp1352055

Note:  Ensure that the management application supports SNMPv3 authPriv before implementing this feature.

Applied Mitigation Bulletin

Additional mitigation techniques that can be deployed on Cisco devices within the network are available in the Cisco Applied Intelligence companion document for this advisory: http://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20080610-SNMPv3

Obtaining Fixed Software

Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment.

Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html , or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml .

Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades

Customers with Service Contracts

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com.

Customers Using Third-Party Support Organizations

Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory.

The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed.

Customers Without Service Contracts

Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows.

  • +1 800 553 2447 (toll free from within North America)
  • +1 408 526 7209 (toll call from anywhere in the world)
  • e-mail: tac@cisco.com

Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC.

Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages.

Exploitation and Public Announcements

Cisco is releasing this combined Cisco IOS and non-IOS product advisory out of our normal bi-yearly IOS security advisory cycle due to public disclosure of these vulnerabilities.

Cisco is not aware of any malicious exploitation of these vulnerabilities.

These vulnerabilities were reported to Cisco by Dr. Tom Dunigan of the University of Tennessee and Net-SNMP in cooperation with the CERT Coordination Center.

Status of This Notice: Final

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.


Distribution

This advisory is posted on Cisco's worldwide website at:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20080610-snmpv3

In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients.

  • cust-security-announce@cisco.com
  • first-teams@first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk
  • comp.dcom.sys.cisco@newsgate.cisco.com

Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates.


Revision History

Revision 1.9 2012-November-16 Added Cisco 8485DVB Set Top Box product.
Revision 1.8 2012-November-01 Added Cisco 8472DVB Set Top Box product.
Revision 1.7 2010-August-09 Added information for Cisco Internet
Streamer CDS.
Revision 1.6 2010-February-22 In Affected Products section and in Software Versions and Fixes section, removed PGW 2200 after further analysis.
Revision 1.5 2010-January-29 In Affected Products section and in Software Versions and Fixes section, added Cisco MGX and PGW.
Revision 1.4 2009-January-08 In Affected Products section and in Software Versions and Fixes section, added Cisco ACNS and WAAS.
Revision 1.3 2008-July-01 Updated Workarounds for Cisco MDS.
Revision 1.2 2008-June-27 In MDS Software section under Software Versions and Fixes, made updates to Cisco MDS 9000 SAN-OS Software table.
Revision 1.1 2008-June-20 In Affected Products section, added Cisco WLC. In Software Versions and Fixes section, updated Cisco MDS software.
Revision 1.0 2008-June-10 Initial public release.

Cisco Security Procedures

Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html. This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt.


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