Cisco Secure Access Control Server (ACS) for Windows contains two vulnerabilities. One vulnerability can lead to the execution of an arbitrary code on an ACS server, and the second can lead to an unauthorized disclosure of information. A patch is available for both vulnerabilities. Cisco Secure ACS for Unix is not vulnerable. No other Cisco product is vulnerable. There is no direct workaround for the vulnerabilities, but it is possible to mitigate them to a great extent. See the Workarounds section for details. This advisory is available at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20020403-acs-win-web.
Cisco Secure Access Control Server (ACS) for Windows contains two vulnerabilities. One vulnerability can lead to the execution of an arbitrary code on an ACS server, and the second can lead to an unauthorized disclosure of information. A patch is available for both vulnerabilities.
Cisco Secure ACS for Unix is not vulnerable. No other Cisco product is vulnerable.
There is no direct workaround for the vulnerabilities, but it is possible to mitigate them to a great extent. See the Workarounds section for details.
This advisory is available at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20020403-acs-win-web.
This section provides details on affected products.
The affected product is Cisco Secure Access Control Server for Windows; all releases up to and including 2.6.x and ACS 3.0.1 (build 40) are affected.
Cisco Secure ACS for Unix is not affected.
No other Cisco products are currently known to be affected by these vulnerabilities.
There are two different vulnerabilities, as described by the Bug IDs below. The first can lead to execution of an arbitrary code; the second can be used to reveal customer data.
. There are no direct workarounds for these vulnerabilities. However, by exercising the standard best practices, it is possible to significantly mitigate both issues. These practices are:
We strongly recommend that these practices are also followed when deploying Cisco ACS for Unix, even though it is not vulnerable to the mentioned issues.
Both vulnerabilities are fixed by the patched CSAdmin.exe files available at http://www.cisco.com/pcgi-bin/tablebuild.pl/cs-acs-win . The file names are CSAdmin-patch-2.6-4-4.zip and CSAdmin-patch-3.0-1-40.zip. These patches must be applied only to releases 2.6(4.4) and 3.0.1 (build 40). If you are running any other release, you should open a case with the Cisco Technical Assistance Center (TAC) to receive a free upgrade. After upgrading to release 2.6(4.4) or 3.0.1 (build 40), you should apply the patches.
Note: To download these patches, you must be a registered user and you must be logged in. Unregistered users should refer to the instructions in the Obtaining Fixed Software section.
To install the patch, follow the procedure below while logged in as Administrator.
Both vulnerabilities were reported by Jonas Ländin and Patrik Karlsson from iXsecurity. Cisco PSIRT was made aware that an exploit program for the format vulnerability exists. This exploit is not thought to be released to the general public.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Revision 1.1 |
2002-April-05 |
Updates made to Affected Products, and Software Versions and Fixes. |
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Revision 1.0 |
2002-April-03 |
Initial Public Release |
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