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TITLE:
Cisco Secure ACS Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA23629

VERIFY ADVISORY:
http://secunia.com/advisories/23629/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

OPERATING SYSTEM:
Cisco Secure ACS Solution Engine 3.x
http://secunia.com/product/4206/

SOFTWARE:
Cisco Secure ACS 3.x
http://secunia.com/product/679/
Cisco Secure ACS 4.x
http://secunia.com/product/10635/

DESCRIPTION:
Some vulnerabilities have been reported in Cisco Secure ACS, which
can be exploited by malicious users or people to cause a DoS (Denial
of Service) or to compromise a vulnerable system.

1) An unspecified error within the CSAdmin service when processing
HTTP GET requests can be exploited to cause a stack-based buffer
overflow via a specially crafted HTTP GET request.

Successful exploitation allows execution of arbitrary code.

2) An unspecified error within the CSRadius service when processing
RADIUS Accounting-Request packets can be exploited to cause a
stack-based buffer overflow via a specially crafted RADIUS
Accounting-Request packet.

Successful exploitation allows execution of arbitrary code.

3) Unspecified errors within the CSRadius service when processing
RADIUS Access-Request packets can be exploited to crash the service
via a specially crafted RADIUS Access-Request packet.

The vulnerabilities are reported in versions prior to 4.1. Other
versions may also be affected. 

Note: The following products are reportedly not affected:
*  Cisco Secure ACS for Unix (CSU).
* Cisco CNS Access Registrar (CAR).
* Cisco Secure ACS server for Windows version 4.1(X) or later.
* Cisco Secure ACS server solution Engine version 4.1(X) or later.

SOLUTION:
Apply patches.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits CESG's Vulnerability Research Group and National
Infrastructure Security Co-ordination Centre (NISCC).

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sa-20070105-csacs.shtml

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About:
This Advisory was delivered by Secunia as a free service to help
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Secunia NEVER sends attached files with advisories.
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