Cisco VPN 5000 Client software close_tunnel and open_tunnel binary buffer overflow
| cisco-vpn5000-binary-bo (10131) |  High 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:
- BugTraq Mailing List, Wed Sep 18 2002 - 10:41:53 CDT : Cisco VPN 5000 client buffer overflow vulnerabilities..
- Cisco Systems Inc. Security Advisory, 2002 September 18 08:00 (UTC -0800): Cisco VPN 5000 Client Multiple Vulnerabilities.
- BID-5734: Cisco VPN 5000 Client Buffer Overrun Vulnerabilities
- CVE-2002-1492: Buffer overflows in the Cisco VPN 5000 Client before 5.2.7 for Linux, and VPN 5000 Client before 5.2.8 for Solaris, allow local users to gain root privileges via (1) close_tunnel and (2) open_tunnel.
- OSVDB ID: 8878: Cisco VPN 5000 Client Multiple Function Overflows
Platforms Affected:
- Cisco VPN 5000 Client 5.2.6
- Cisco VPN 5000 Client 5.2.7
Reported:
Sep 18, 2002
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