Some vulnerabilities have been reported in Cisco VPN Client, which can be exploited by malicious, local users to gain escalated privileges.
1) An error when using a VPN profile configured to use the Microsoft Dial-Up Networking Interface can be exploited to run arbitrary commands with the privileges of the LocalSystem account by enabling the "Start Before Logon" feature.
The vulnerability is reported in versions prior to 4.8.02.0010.
2) Incorrect permissions are set for cpvnd.exe during the Cisco VPN Client installation. This can be exploited by interactive users to run arbitary commands with the privileges of the LocalSystem account by replacing cvpnd.exe with an arbitrary file.
The vulnerability is reported in versions prior to 5.0.01.0600 and 64-bit version 5.0.7.0290.
Solution: Update to a fixed version (please see the vendor's advisory for details).
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Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
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Score: 1 Posts: 2 User Since: 25th Oct 2009 System Score: N/A Location: N/A Last edited on 30th Mar, 2011 18:00
Secunia tells me: "The version detected of Cisco VPN Client 5.x was 5.0.07.0410 while the latest version including one or more security fixes is 5.0.7.0440."
But the 0440 release is available only as 64bit version. I'm using a 32bit version, and the latest available release for 32bit is 0410.