Cisco VPN 5000 Client software close_tunnel and open_tunnel binary buffer overflow

cisco-vpn5000-binary-bo (10131) The risk level is classified as HighHigh Risk

Description:

Cisco Virtual Private Network (VPN) 5000 Client for Linux is vulnerable to a buffer overflow in the close_tunnel and in the open_tunnel binary. A local attacker, with a valid VPN account, could overflow a buffer and gain root privileges on the system.


Consequences:

Gain Privileges

Remedy:

For Cisco VPN 5000 Client for Linux versions prior to 5.2.7:
Upgrade to the latest version of Cisco VPN 5000 Client software for Linux (5.2.7 or later), as listed in Cisco Security Advisory 2002 September 18 08:00 (UTC -0800). See References.

For Cisco VPN 5000 Client for Solaris versions prior to 5.2.8:
Upgrade to the latest version of Cisco VPN 5000 Client software for Linux (5.2.8 or later), as listed in Cisco Security Advisory 2002 September 18 08:00 (UTC -0800). See References.

References:

Platforms Affected:

  • Cisco VPN 5000 Client 5.2.6
  • Cisco VPN 5000 Client 5.2.7

Reported:

Sep 18, 2002

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