Cisco VPN Client for Unix profile name vulnerable to buffer overflow
| ciscovpn-profile-name-bo (9376) |  High Risk |
Description:
Cisco VPN Client for Unix platforms are vulnerable to a buffer overflow. By default, the vpnclient binary is installed with setuid permissions. A vulnerability regarding insufficient bounds checking with user-supplied arguments in the vpnclient command could allow a remote attacker to supply an overly long profile name to overflow a buffer and gain root privileges on the system.
Platforms Affected:
- Cisco, VPN Client 3.5.1
Remedy:
For Linux, Solaris, and Mac OS X platforms:
Upgrade to the latest version of Cisco VPN Client (3.5.2 or later), as listed in Cisco Security Advisory: Buffer Overflow in UNIX VPN Client. See References.
Consequences:
Gain Privileges
References:
- BugTraq Mailing List, Wed Jun 19 2002 - 10:50:13 CDT, [AP] Cisco vpnclient buffer overflow at http://archives.neohapsis.com/archives/bugtraq/2002-06/0222.html.
- CIAC Information Bulletin M-092, Cisco Buffer Overflow in UNIX VPN Client at http://www.ciac.org/ciac/bulletins/m-092.shtml.
- Cisco Systems Inc. Security Advisory, 2002 June 19 at 14:00 GMT, Buffer Overflow in UNIX VPN Client at http://www.cisco.com/warp/public/707/cisco-unix-vpnclient-buffer-overflow-pub.shtml.
- BID-5056: Cisco VPN Client for Unix Local Buffer Overflow Vulnerability
- CVE-2002-1447: Buffer overflow in the vpnclient program for UNIX VPN Client before 3.5.2 allows local users to gain administrative privileges via a long profile name in a connect argument.
Reported:
Jun 19, 2002
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