Cisco Security Advisory: Cisco IOS Software IPsec Vulnerability

Home > Security Intelligence Operations > Latest Threat Information > Cisco Security Advisories, Responses, and Notices

Advisory ID: cisco-sa-20100324-ipsec

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100324-ipsec

Revision 1.1

Last Updated 2012 September 21 19:08 UTC (GMT)

For Public Release 2010 March 24 16:00 UTC (GMT)

Summary
Affected Products
Details
Vulnerability Scoring Details
Impact
Software Versions and Fixes
Workarounds
Obtaining Fixed Software
Exploitation and Public Announcements
Status of This Notice: Final
Distribution
Revision History
Cisco Security Procedures

Summary

A malformed Internet Key Exchange (IKE) packet may cause a device running Cisco IOS Software to reload. Only Cisco 7200 Series and Cisco 7301 routers running Cisco IOS software with a VPN Acceleration Module 2+ (VAM2+) installed are affected. Cisco has released free software updates that address this vulnerability.

This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100324-ipsec.

Note: The March 24, 2010, Cisco IOS Software Security Advisory bundled publication includes seven Security Advisories. All the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities detailed in the advisory. The table at the following URL lists releases that correct all Cisco IOS Software vulnerabilities that have been published on March 24, 2010, or earlier:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100324-bundle

Individual publication links are in "Cisco Event Response: Semiannual Cisco IOS Software Security Advisory Bundled Publication" at the following link:

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html

Affected Products

Vulnerable Products

Only Cisco 7200 Series and Cisco 7301 routers with VPN Acceleration Module 2+ (VAM2+) are affected by this vulnerability.

To display a summary of the configuration information for the crypto engines and to determine if a VAM is present and used in the device, use the show crypto engine brief command, as shown in the following example:

Router#show crypto engine brief
        crypto engine name:  Virtual Private Network (VPN) Module
        crypto engine type:  hardware
                     State:  Enabled 
                  Location:  slot 4
        VPN Module in slot:  4
              Product Name:  VAM2+ 
         Software Serial #:  55AA
                 Device ID:  001F - revision 0000
                 Vendor ID:  0000
               Revision No:  0x001F0000
              VSK revision:  0
              Boot version:  902
               DPU version:  0
               HSP version:  3.4(3) (PRODUCTION)
              Time running:  00:00:10
               Compression:  Yes
                       DES:  Yes
                     3 DES:  Yes
                   AES CBC:  Yes (128,192,256)
                  AES CNTR:  No
     Maximum buffer length:  4096
          Maximum DH index:  5120
          Maximum SA index:  5120
        Maximum Flow index:  10230

Note: In the previous example, the "Product Name" VAM2+ is displayed, indicating that the router has the VAM2+ installed. The Enabled keyword under "State" indicates that the VAM2+ is enabled and active.

IKE is enabled by default if IPsec is used. Cisco IOS devices that are configured for IKE will listen on UDP port 500, UDP port 4500 if the device is configured for NAT Traversal (NAT-T), or UDP ports 848 or 4848 if the device is configured for Group Domain of Interpretation (GDOI). The following outputs show a router that is listening on UDP port 500:

    Router#show ip sockets 
    Proto    Remote      Port      Local       Port  In Out Stat TTY OutputIF
    ....
     17   --listen--          192.168.66.129    500   0   0   11   0 
    ....

Or

    Router#show udp
    Proto        Remote      Port      Local       Port  In Out  Stat TTY OutputIF
     17       --listen--          192.0.2.1         500   0   0  1011   0 
     17(v6)   --listen--          --any--           500   0   0 20011   0 
    Router#

To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the show version command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the show version command or may provide different output.

The following example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L:

Router#show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by cisco Systems, Inc.
Compiled Mon 17-Mar-08 14:39 by dchih



!--- output truncated

The following example identifies a Cisco product that is running Cisco IOS Software Release 12.4(20)T with an installed image name of C1841-ADVENTERPRISEK9-M:

Router#show version
Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 10-Jul-08 20:25 by prod_rel_team



!--- output truncated

Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at the following link: http://www.cisco.com/web/about/security/intelligence/ios-ref.html

Products Confirmed Not Vulnerable

Cisco IOS XE and Cisco IOS XR Software are not affected by this vulnerability. No other Cisco products are currently known to be affected by this vulnerability.

Details

IPsec is an IP security feature that provides robust authentication and encryption of IP packets. IKE is a key management protocol standard that is used with the IPsec standard.

IKE is a hybrid protocol that implements the Oakley and SKEME key exchanges inside the Internet Security Association and Key Management Protocol (ISAKMP) framework. (ISAKMP, Oakley, and SKEME are security protocols that are implemented by IKE.). More information on IKE is available at the following link:

http://www.cisco.com/en/US/docs/ios/sec_secure_connectivity/configuration/guide/sec_key_exch_ipsec.html

A vulnerability exists in the Cisco IOS Software implementation of IKE where a malformed packet may cause a device running Cisco IOS Software to reload. Only Cisco 7200 Series and Cisco 7301 routers running Cisco IOS software with a VPN Acceleration Module 2+ (VAM2+) installed are affected.

This vulnerability is documented in Cisco Bug ID CSCtb13491 ( registered customers only) and has been assigned CVE ID CVE-2010-0578.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerability 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 .

CSCtb13491 - Malformed IKE packet may cause reload Calculate the environmental score of CSCtb13491
CVSS Base Score - 7.8
Access Vector	Access Complexity	Authentication	Confidentiality Impact	Integrity Impact	Availability Impact
Network	Low	None	None	None	Complete
CVSS Temporal Score - 6.4
Exploitability		Remediation Level		Report Confidence
Functional		Official-Fix		Confirmed

Impact

Successful exploitation of this vulnerability may cause the affected device to reload. Repeated exploitation will result in a denial of service (DoS) condition.

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 "Bundle First Fixed Release" column indicates the earliest possible releases which have fixes for all the published vulnerabilities in this Cisco IOS Security Advisory bundled publication. Cisco recommends upgrading to the latest available release where possible.

Major Release	Availability of Repaired Releases
Affected 12.0-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
There are no affected 12.0 based releases
Affected 12.1-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
There are no affected 12.1 based releases
Affected 12.2-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
12.2	Not Vulnerable	Not Vulnerable
12.2B	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2BC	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2BW	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2BX	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2BY	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2BZ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2CX	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2CY	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2CZ	Not Vulnerable	Vulnerable; migrate to any release in 12.2SRE
12.2DA	Not Vulnerable	Not Vulnerable
12.2DD	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2DX	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2EW	Not Vulnerable	Not Vulnerable
12.2EWA	Not Vulnerable	Not Vulnerable
12.2EX	Not Vulnerable	Releases up to and including 12.2(37)EX are not vulnerable. Releases 12.2(44)EX and later are not vulnerable; first fixed in 12.2SE
12.2EY	Not Vulnerable	Releases prior to 12.2(37)EY are vulnerable, release 12.2(37)EY and later are not vulnerable
12.2EZ	Not Vulnerable	Not Vulnerable
12.2FX	Not Vulnerable	Not Vulnerable
12.2FY	Not Vulnerable	Not Vulnerable
12.2FZ	Not Vulnerable	Not Vulnerable
12.2IRA	Not Vulnerable	Vulnerable; first fixed in 12.2SRC
12.2IRB	Not Vulnerable	Vulnerable; first fixed in 12.2SRC
12.2IRC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IRD	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXA	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXB	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXD	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXE	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXF	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXG	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2IXH	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2JA	Not Vulnerable	Releases up to and including 12.2(4)JA1 are not vulnerable.
12.2JK	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2MB	Not Vulnerable	Not Vulnerable
12.2MC	Not Vulnerable	Vulnerable; first fixed in 12.4
12.2MRA	Not Vulnerable	Not Vulnerable
12.2S	Not Vulnerable	Releases prior to 12.2(30)S are vulnerable, release 12.2(30)S and later are not vulnerable;
12.2SB	Releases prior to 12.2(33)SB5 are vulnerable, release 12.2(33)SB5 and later are not vulnerable; migrate to any release in 12.2SRE Releases up to 12.2(31)SB18 are not vulnerable.	12.2(33)SB8 12.2(31)SB18; Available on 24-MAR-10
12.2SBC	Not Vulnerable	Vulnerable; migrate to any release in 12.2SRE
12.2SCA	Vulnerable; first fixed in 12.2SCB	Vulnerable; first fixed in 12.2SCB
12.2SCB	12.2(33)SCB6	12.2(33)SCB6
12.2SCC	12.2(33)SCC1	12.2(33)SCC1
12.2SCD	Not Vulnerable	Not Vulnerable
12.2SE	Not Vulnerable	12.2(50)SE4; Available on 25-MAR-10
12.2SEA	Not Vulnerable	Not Vulnerable
12.2SEB	Not Vulnerable	Not Vulnerable
12.2SEC	Not Vulnerable	Not Vulnerable
12.2SED	Not Vulnerable	Vulnerable; first fixed in 12.2SE
12.2SEE	Not Vulnerable	Vulnerable; first fixed in 12.2SE
12.2SEF	Not Vulnerable	Not Vulnerable
12.2SEG	Not Vulnerable	Releases prior to 12.2(25)SEG4 are vulnerable, release 12.2(25)SEG4 and later are not vulnerable; first fixed in 12.2SE
12.2SG	Not Vulnerable	Releases up to 12.2(31)SG1 are not vulnerable; releases 12.2(40)SG and later are not vulnerable.
12.2SGA	Not Vulnerable	Not Vulnerable
12.2SL	Not Vulnerable	Not Vulnerable
12.2SM	Not Vulnerable	Not Vulnerable
12.2SO	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2SQ	Not Vulnerable	Not Vulnerable
12.2SRA	Releases prior to 12.2(33)SRA6 are vulnerable, release 12.2(33)SRA6 and later are not vulnerable; migrate to any release in 12.2SRB	Vulnerable; first fixed in 12.2SRD
12.2SRB	Not Vulnerable	Vulnerable; first fixed in 12.2SRD
12.2SRC	Not Vulnerable	12.2(33)SRC5
12.2SRD	Not Vulnerable	12.2(33)SRD3
12.2SRE	Not Vulnerable	Not Vulnerable
12.2STE	Not Vulnerable	Not Vulnerable
12.2SU	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2SV	Not Vulnerable	Releases up to and including 12.2(18)SV2 are not vulnerable.
12.2SVA	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2SVC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2SVD	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2SVE	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2SW	Not Vulnerable	Releases up to and including 12.2(25)SW3 are not vulnerable. Releases 12.2(25)SW12 and later are not vulnerable; first fixed in 15.0M
12.2SX	Not Vulnerable	Vulnerable; first fixed in 12.2SXF
12.2SXA	Not Vulnerable	Vulnerable; first fixed in 12.2SXF
12.2SXB	Not Vulnerable	Vulnerable; first fixed in 12.2SXF
12.2SXD	Not Vulnerable	Vulnerable; first fixed in 12.2SXF
12.2SXE	Not Vulnerable	Vulnerable; first fixed in 12.2SXF
12.2SXF	Not Vulnerable	12.2(18)SXF17a
12.2SXH	Not Vulnerable	12.2(33)SXH6
12.2SXI	Not Vulnerable	12.2(33)SXI2a 12.2(33)SXI3
12.2SY	Not Vulnerable	Vulnerable; migrate to any release in 12.2SRE
12.2SZ	Not Vulnerable	Vulnerable; migrate to any release in 12.2SRE
12.2T	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2TPC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2XA	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XB	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XC	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XD	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XE	Not Vulnerable	Not Vulnerable
12.2XF	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XG	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XH	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XI	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XJ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XK	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XL	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XM	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XN	Not Vulnerable	Releases prior to 12.2(33)XN1 are vulnerable, release 12.2(33)XN1 and later are not vulnerable; first fixed in 12.2SRC
12.2XNA	Please see Cisco IOS-XE Software Availability	Please see Cisco IOS-XE Software Availability
12.2XNB	Please see Cisco IOS-XE Software Availability	Please see Cisco IOS-XE Software Availability
12.2XNC	Please see Cisco IOS-XE Software Availability	Please see Cisco IOS-XE Software Availability
12.2XND	Please see Cisco IOS-XE Software Availability	Please see Cisco IOS-XE Software Availability
12.2XNE	Please see Cisco IOS-XE Software Availability	Please see Cisco IOS-XE Software Availability
12.2XNF	Please see Cisco IOS-XE Software Availability	Please see Cisco IOS-XE Software Availability
12.2XO	Not Vulnerable	Not Vulnerable
12.2XQ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XR	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XS	Not Vulnerable	Not Vulnerable
12.2XT	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XU	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XV	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2XW	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2YA	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2YB	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YD	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YE	Not Vulnerable	Not Vulnerable
12.2YF	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YG	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YH	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YJ	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YK	Not Vulnerable	Not Vulnerable
12.2YL	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YM	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2YN	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YO	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YP	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2YQ	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YR	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YS	Not Vulnerable	Not Vulnerable
12.2YT	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YU	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YV	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YW	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YX	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YY	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2YZ	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZA	Not Vulnerable	Vulnerable; first fixed in 12.2SXF
12.2ZB	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZD	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZE	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2ZF	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2ZG	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2ZH	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.2ZJ	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZL	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZP	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZU	Not Vulnerable	Vulnerable; first fixed in 12.2SXH
12.2ZX	Not Vulnerable	Vulnerable; migrate to any release in 12.2SRE
12.2ZY	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.2ZYA	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Affected 12.3-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
12.3	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3B	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3BC	Not Vulnerable	Vulnerable; first fixed in 12.2SCB
12.3BW	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3EU	Not Vulnerable	Not Vulnerable
12.3JA	Not Vulnerable	Releases prior to 12.3(11)JA5 are vulnerable, release 12.3(11)JA5 and later are not vulnerable
12.3JEA	Not Vulnerable	Releases prior to 12.3(8)JEA4 are vulnerable, release 12.3(8)JEA4 and later are not vulnerable
12.3JEB	Not Vulnerable	Releases prior to 12.3(8)JEB2 are vulnerable, release 12.3(8)JEB2 and later are not vulnerable
12.3JEC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3JED	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3JK	Releases up to and including 12.3(2)JK3 are not vulnerable. Releases 12.3(8)JK1 and later are not vulnerable; first fixed in 12.4	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3JL	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3JX	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3T	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3TPC	Releases up to and including 12.3(4)TPC11a are not vulnerable.	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3VA	Not Vulnerable	Not Vulnerable
12.3XA	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XB	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3XC	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XD	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XE	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; first fixed in 12.4 Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XF	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3XG	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XI	Not Vulnerable	Releases prior to 12.3(7)XI11 are vulnerable, release 12.3(7)XI11 and later are not vulnerable
12.3XJ	Vulnerable; migrate to any release in 12.4XN	Vulnerable; first fixed in 12.4XR
12.3XK	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XL	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XQ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XR	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XS	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XU	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XW	Vulnerable; migrate to any release in 12.4XN	Vulnerable; first fixed in 12.4XR
12.3XX	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XY	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3XZ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YA	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YD	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YF	Vulnerable; migrate to any release in 12.4XN	Vulnerable; first fixed in 12.4XR
12.3YG	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YH	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YI	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YJ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YK	Releases prior to 12.3(11)YK1 are vulnerable, release 12.3(11)YK1 and later are not vulnerable.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YM	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YQ	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YS	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YT	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YU	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.3YX	Vulnerable; migrate to any release in 12.4XN	Vulnerable; first fixed in 12.4XR
12.3YZ	Releases up to and including 12.3(11)YZ1 are not vulnerable.	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.3ZA	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Affected 12.4-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
12.4	12.4(25b) 15.0(1)M1 15.0(1)M2 ; Available on 26-MAR-10	12.4(25c) 15.0(1)M1
12.4GC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JA	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JDA	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JDC	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JDD	Not Vulnerable	12.4(10b)JDD1
12.4JHA	Not Vulnerable	Not Vulnerable
12.4JK	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JL	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JMA	Not Vulnerable	Releases prior to 12.4(3g)JMA2 are vulnerable, release 12.4(3g)JMA2 and later are not vulnerable
12.4JMB	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4JX	Not Vulnerable	Vulnerable; first fixed in 12.4JA
12.4MD	Not Vulnerable	12.4(24)MD
12.4MDA	Not Vulnerable	12.4(22)MDA2
12.4MR	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4SW	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4T	Releases prior to 12.4(15)T are vulnerable, release 12.4(15)T and later are not vulnerable	12.4(15)T12 12.4(20)T5 12.4(24)T3; Available on 26-MAR-10 12.4(22)T4
12.4XA	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XB	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XC	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XD	Vulnerable; migrate to any release in 15.0M Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XE	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XF	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XG	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XJ	Releases prior to 12.4(11)XJ4 are vulnerable, release 12.4(11)XJ4 and later are not vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XK	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XL	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4XM	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XN	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4XP	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4XQ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XR	Not Vulnerable	12.4(22)XR3
12.4XT	Releases prior to 12.4(11)XJ4 are vulnerable, release 12.4(11)XJ4 and later are not vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XV	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4XW	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XY	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4XZ	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4YA	Not Vulnerable	Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4YB	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4YD	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4YE	Not Vulnerable	12.4(22)YE2 12.4(24)YE
12.4YG	Not Vulnerable	Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Affected 15.0-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
There are no affected 15.0 based releases
Affected 15.1-Based Releases	First Fixed Release for this Advisory	First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
There are no affected 15.1 based releases

Cisco IOS-XE Software

IOS-XE Release	First Fixed Release
2.1.x	Not Vulnerable
2.2.x	Not Vulnerable
2.3.x	Not Vulnerable
2.4.x	Not Vulnerable
2.5.x	Not Vulnerable
2.6.x	Not Vulnerable

Workarounds

There are no workarounds available.

Obtaining Fixed Software

Cisco has released free software updates that address this vulnerability. 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 with Service Contracts

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, upgrades should be obtained through the Software Navigator on Cisco.com at http://www.cisco.com/cisco/software/navigator.html.

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

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was found during the resolution of customer service requests.

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-20100324-ipsec

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-bulletins@lists.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 1.0

2010-March-24

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/en/US/products/products_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.

Product Support

Product Categories

Downloads

Popular Downloads

Contact / Support Cases

Small Business

For Home

For Business

Training

Events

Certifications

Already a Partner?

Cisco Security Advisory

Cisco IOS Software IPsec Vulnerability

Advisory ID: cisco-sa-20100324-ipsec

Revision 1.1

Last Updated 2012 September 21 19:08 UTC (GMT)

For Public Release 2010 March 24 16:00 UTC (GMT)

Contents

writePM('affected')Affected Products

writePM('vps') Vulnerable Products

writePM('nonvulnerable')Products Confirmed Not Vulnerable

writePM('details')Details

writePM('vulnerability')Vulnerability Scoring Details

writePM('impact')Impact

writePM('software')Software Versions and Fixes

Cisco IOS-XE Software

writePM('workarounds')Workarounds

writePM('fixes')Obtaining Fixed Software

writePM('CustomerswithServiceContracts')Customers with Service Contracts

writePM('CustomerSupportOrganizationsConcepts')Customers Using Third-Party Support Organizations

writePM('CustomerswithoutServiceContracts')Customers Without Service Contracts

writePM('exploitation')Exploitation and Public Announcements

writePM('status')Status of This Notice: Final

writePM('distribution')Distribution

writePM('revision')Revision History

writePM('secpro')Cisco Security Procedures

Related Links

Tools

Products & Services

Solutions

Affected Products

Vulnerable Products

Products Confirmed Not Vulnerable

Details

Vulnerability Scoring Details

Impact

Software Versions and Fixes

Workarounds

Obtaining Fixed Software

Customers with Service Contracts

Customers Using Third-Party Support Organizations

Customers Without Service Contracts

Exploitation and Public Announcements

Status of This Notice: Final

Distribution

Revision History

Cisco Security Procedures