Cisco Security Advisory

Authenticated Command Injection Vulnerability in Multiple Cisco Content Network and Video Delivery Products

Advisory ID: cisco-sa-20130731-cm

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130731-cm

Revision 1.0

For Public Release 2013 July 31 16:00  UTC (GMT)


Summary

Multiple Cisco content network and video delivery products contain a vulnerability when they are configured to run in central management mode. This vulnerability could allow an authenticated but unprivileged, remote attacker to execute arbitrary code on the affected system and on the devices managed by the affected system.

Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130731-cm

Affected Products

Vulnerable Products

The following products running a vulnerable version of code are affected by this vulnerability:

Cisco Wide Area Application Services (WAAS)
Cisco WAAS Software configured as Central Manager (CM) and running on the following platforms:
  • Cisco WAAS Appliances
  • Cisco Virtual WAAS (vWAAS)
  • Cisco WAAS Modules

Cisco Application and Content Networking System (ACNS)

Cisco ACNS Software configured as Content Distribution Manager (CDM) and running on the following platforms:
  • Cisco Wide Application Engine (WAE)
  • Cisco ACNS Network Modules


Cisco Enterprise Content Delivery System (ECDS)

Cisco ECDS Software configured as Content Delivery System Manager (CDSM) and running on the following platforms:

  • Cisco Media Delivery Engine 50 WVB
  • Cisco Media Delivery Engine 1100
  • Cisco Media Delivery Engine 3100


Cisco Internet Streamer Content Delivery System (CDS-IS)

Cisco CDS-IS Software configured as Internet Streaming Content Delivery System Manager (CDSM) and running on the following platforms:

  • Cisco Content Delivery Engine (CDE)
  • Cisco Unified Computing System (UCS)


Cisco VideoScape Delivery System for Internet Streamer (VDS-IS)

Cisco VDS-IS Software configured as Internet Streaming Content Delivery System Manager (CDSM) and running on the following platforms:

  • Cisco Content Delivery Engine (CDE)
  • Cisco Unified Computing System (UCS)

Cisco Videoscape Distribution Suite Service Broker (VDS-SB)

Cisco VDS-SB Software configured as Videoscape Delivery Suite Service Manager (VDSM) and running on the following platform:
  • Cisco Unified Computing System (UCS)

Cisco Videoscape Distribution Suite Optimization Engine (VDS-OE)

Cisco VDS-OE Software configured as Content Delivery Service Manager (VDSM) and running on the following platform:
  • Cisco Unified Computing System (UCS)

Cisco VideoScape Delivery System Origin Server (VDS-OS)
Cisco VOS Software and configured as Virtual Origin System Manager (VOSM) and running on the following platform:
  • Cisco Unified Computing System (UCS)

Products Confirmed Not Vulnerable

The following products are not affected by this vulnerability:
  • Cisco WAAS Express (WAASx)
  • Cisco WAAS Mobile
  • Cisco Videoscape Distribution Suite for Television (VDS TV)
  • Cisco Content Distribution Suite for Television (CDS TV)
  • Cisco Content Delivery System (CDS) Video Navigator Application
No other Cisco products are currently known to be affected by this vulnerability.

Details

A vulnerability in the web framework could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of the affected system as well as on underlying operating system of the devices associated and managed by the affected system.
The vulnerability is due to a failure to properly sanitize user input that is subsequently used to perform an action using the underlying command-line interface of the device. An authenticated but unprivileged attacker could exploit this vulnerability by logging in to the GUI of the affected system and appending arbitrary code to some of values passed to the system.


Note:
Only devices running in management mode are affected by this vulnerability. 

This vulnerability is documented in Cisco bug IDs CSCug40609 (registered customers only) for Cisco WAAS Software, CSCug48855 (registered customers only) for Cisco ACNS Software, CSCug48921 (registered customers only) for Cisco ECDS Software, CSCug48872 (registered customers only) for Cisco CDS-IS and VDS-IS Software, CSCuh21103 (registered customers only) for Cisco VDS-SB Software, CSCuh21020 (registered customers only) for Cisco VDS-OE Software, and CSCug56790 (registered customers only) for Cisco VDS-OS Software.

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2013-3444

Vulnerability Scoring Details

Cisco has scored the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this security advisory is in accordance with CVSS version 2.0.

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

Cisco has provided a base and temporal score. Customers can also compute environmental scores that help determine the impact of the vulnerability in their own networks.

Cisco has provided additional information regarding CVSS at the following link:

http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html

Cisco has also provided a CVSS calculator to compute the environmental impact for individual networks at the following link:

http://intellishield.cisco.com/security/alertmanager/cvss



CSCug40609, CSCug48855, CSCug48921, CSCug48872, and CSCug56790, CSCuh21103, and CSCuh21020 -  Authenticated Command Injection Vulnerability in Multiple Cisco Content Network and Video Delivery Products

Calculate the environmental score of CSCug40609, CSCug48855, CSCug48921, CSCug48872, and CSCug56790, CSCuh21103, and CSCuh21020

CVSS Base Score - 9.0

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

Single

Complete

Complete

Complete

CVSS Temporal Score - 7.4

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed


Impact

Successful exploitation of the vulnerability may cause an authenticated but unprivileged, remote attacker to execute arbitrary commands on the affected system and on the devices managed by the affected system itself.

Software Versions and Fixes

When considering software upgrades, customers are advised to consult the Cisco Security Advisories, Responses, and Notices archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.

In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

The following table lists the fixed releases for each of the affected products:

 Product Major Release
Fixed Release
 Cisco WAAS Software
 4.x
 Not Available. Migrate to 5.x
 5.0.x  5.0.3e
 5.1.x  5.1.1c
 5.2.x  5.2.1
 
 Cisco ACNS Software
 4.x  Not available. Migrate to 5.x
 5.x  5.5.29.2
 Cisco ECDS Software
 2.x  2.5.6
 Cisco CDS-IS Software
 2.x  2.6.3.b50
 3.1.x  3.1.2b54
 Cisco VDS-IS Software
 3.2.x  3.2.1.b9
 Cisco VDS-SB Software
 1.x  1.1.0-b96
 Cisco VDS-OE Software
 1.x  1.0.1
 Cisco VDS-OS Software
 1.x  2.0

Note:
Cisco WAAS Software releases prior to 4.2.1 are not affected by this vulnerability.

Workarounds

There is no workaround that mitigates this vulnerability.

Obtaining Fixed Software

Cisco has released free software updates that address the vulnerability described in this advisory. Prior to deploying software, customers are advised to consult their maintenance providers or check the software for feature set compatibility and known issues that are specific to their environments.

Customers may only install and expect support for feature sets they have purchased. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html.

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 with Cisco products that 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 organization for assistance with the appropriate course of action.

The effectiveness of any workaround or fix depends on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Because of the variety of affected products and releases, customers should consult their service providers or support organizations to ensure that any applied workaround or fix is the most appropriate in the intended network before it is deployed.

Customers Without Service Contracts

Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC):

  • +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 the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Customers without service contracts should request free upgrades through the TAC.

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

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

This vulnerability was found during internal tests

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 Security Intelligence Operations at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130731-cm

Additionally, a text version of this advisory is clear signed with the Cisco PSIRT PGP key and circulated among the following e-mail addresses:

  • 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

Future updates of this advisory, if any, will reside on Cisco.com but may not be announced on mailing lists. Users can monitor this advisory's URL for any updates.


Revision History

Revision 1.0 2013-July-31 Initial public release

Cisco Security Procedures

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


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