Products & Services

Contents

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

Vulnerable Products

Products Confirmed Not Vulnerable

CiscoWorks Common Services represents a common set of management services that are shared by CiscoWorks applications. CiscoWorks is a family of products based on Internet standards for managing networks and devices. Many CiscoWorks products use and depend on Common Services.

CiscoWorks Common Services contains a vulnerability that could allow a remote attacker to execute arbitrary code. This vulnerability is documented in Cisco Bug ID CSCsm77245 ( registered customers only) , and has been assigned the Common Vulnerabilities and Exposures (CVE) ID CVE-2008-2054.

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.

Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the user client machine.

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.

This vulnerability has been corrected in CiscoWorks Common Services version 3.2 and in the following software patches:

cwcs3.x-sol-CSCsm77245-0.tar.gz - for Solaris versions

cwcs3.x-win-CSCsm77245-0.zip - for Windows versions

The CiscoWorks Common Services patches can be downloaded from:

http://www.cisco.com/pcgi-bin/tablebuild.pl/cw2000-cd-one

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.

Filters such as Transit ACLs (tACLs) can be used to allow access to the Administration Workstation from only trusted hosts.

Filters that deny HTTP packets using HTTPS packets using TCP port 443 and TCP port 1741 should be deployed throughout the network as part of a tACL policy to protect the network from 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 that are behind it. Filters for HTTPS packets that use TCP port 443 and TCP port 1741 should also be deployed in front of vulnerable network devices so only traffic from trusted clients is allowed.

Note:  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.

For additional information on XSS attacks and the methods used to exploit these vulnerabilities, please refer to the Cisco Applied Intelligence Response "Understanding Cross-Site Scripting (XSS) Threat Vectors", available at:

http://www.cisco.com/warp/public/707/cisco-amb-20060922-understanding-xss.shtml

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/products/prod_warranties_item09186a008088e31f.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 using Third Party Support Organizations

Customers without Service Contracts

The Cisco PSIRT team is not aware of any public announcements or malicious use of the vulnerability described in this advisory.

This vulnerability was reported to Cisco by Dave Lewis from Liquidmatrix.org

Cisco PSIRT greatly appreciates the opportunity to work with researchers on security vulnerabilities, and we welcome the opportunity to review and assist in product reports.

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

http://www.cisco.com/warp/public/707/cisco-sa-20080528-cw.shtml

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.

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.