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Cisco Security Agent Buffer Overflow Detection Security Bypass
Secunia Advisory: SA13178
Release Date: 2004-11-12
Last Update: 2004-12-07
Popularity: 6,253 views

Critical:
Less critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:Cisco Okena StormWatch 3.x
Cisco Security Agent (CSA) 3.x
Cisco Security Agent (CSA) 4.x

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CVE reference:CVE-2004-1112


Description:
A vulnerability has been reported in Cisco Security Agent (CSA), which can be exploited by malicious people to bypass certain security features.

The vulnerability is caused due to an error in the buffer overflow detection functionality used for detecting exploitation of buffer overflow vulnerabilities. This can be exploited to bypass the offered protection by exploiting a buffer overflow vulnerability twice in rapid succession.

The vulnerability has been reported in the following versions:
* Cisco Security Agent 4.x (prior to version 4.0.3 build 728)
* Cisco Security Agent 3.x
* Okena Stormwatch 3.x
* Cisco Security Agent for CallManager (prior to version 4.0.3 build 728)

Solution:
Update to CSA version 4.0.3.728 or later.

Cisco Security Agent for CallManager:
http://www.cisco.com/pcgi-bin/tablebuild.pl/cmva-3des

Other Cisco Security Agents:
http://www.cisco.com/pcgi-bin/tablebuild.pl/csahf-crypto

Place the agents into hidden user interface mode.

Provided and/or discovered by:
Reported by vendor.

Changelog:
2004-11-20: Added Cisco Security Agent for CallManager as affected.
2004-12-07: Added CVE reference.

Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20041111-csa.shtml


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