NSFOCUS Security Advisory (SA2007-02)
Cisco Security Agent Remote Buffer Overflow Vulnerability
Release Date: 2007-12-06
CVE ID: CVE-2007-5580
Affected systems & software
Cisco Security Agent for Windows < 18.104.22.1682
Cisco Security Agent for Windows < 22.214.171.124
Cisco Security Agent for Windows < 126.96.36.199
Cisco Security Agent for Windows < 188.8.131.52
Unaffected systems & software
NSFOCUS Security Team discovered a remote buffer overflow vulnerability in
Cisco Security Agent for Windows which allows remote code execution by sending
a malicious SMB request.
Cisco Security Agent is a security software agent that provides threat protection
for server and desktop computing systems.
A driver bundled with Cisco Security Agent for Windows does not correctly
check the data length provided by users when processing a SMB packet, which
might trigger a stack buffer overflow in the system kernel. A remote attacker
might cause system with CSA installed to restart or BSOD. By sending carefully
crafted data an attacker might cause remote code execution, thus gains complete
control over the system.
By default CSA allows access to TCP ports 139 and 445. After establishing a
session to TCP ports 139 and 445, an attacker can complete an exploitation
without any authentication simply by sending a single packet.
Cisco Security Agent for Windows version 184.108.40.206 and prior are affected.
Other Cisco software that uses CSA component is also affected.
* Restrict access to TCP ports 139 and 445.
2007.09.27 Informed the vendor
2007.10.23 Vendor confirmed the vulnerability
2007.12.05 Vendor released a security advisory (cisco-sa-20071205-csa) and
For more details about the Cisco security advisory, please refer to:
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2007-5580 to this issue. This is a candidate for inclusion in the
CVE list (http://cve.mitre.org), which standardizes names for security problems.
Candidates may change significantly before they become official CVE entries.
NSFOCUS Security Team
=========THE INFORMATION PROVIDED IS RELEASED BY NSFOCUS "AS IS" WITHOUT WARRANTY
OF ANY KIND. NSFOCUS DISCLAIMS ALL WARRANTIES, EITHER EXPRESSED OR IMPLIED,
EXCEPT FOR THE WARRANTIES OF MERCHANTABILITY. IN NO EVENT SHALL NSFOCUS
BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT,
INCIDENTAL,CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES,
EVEN IF NSFOCUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
DISTRIBUTION OR REPRODUCTION OF THE INFORMATION IS PROVIDED THAT THE
ADVISORY IS NOT MODIFIED IN ANY WAY.
NSFocus Security Team