CVE-2002-1447

UNIX VPN Client <3.5.2 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2002-1447. PoCs published by methodic.

AI-analyzed exploit summary This exploit leverages a buffer overflow in Cisco VPN Client 3.5.1 for Linux by passing an oversized profile name to the suid root binary, leading to local privilege escalation. The shellcode executes /tmp/xx, a helper binary that spawns a root shell.

Description

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.

Exploits (1)

exploitdb WORKING POC VERIFIED
by methodic · clocallinux
https://www.exploit-db.com/exploits/21568

This exploit leverages a buffer overflow in Cisco VPN Client 3.5.1 for Linux by passing an oversized profile name to the suid root binary, leading to local privilege escalation. The shellcode executes /tmp/xx, a helper binary that spawns a root shell.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Cisco VPN Client 3.5.1 for Linux
No auth needed
Prerequisites: Cisco VPN Client 3.5.1 for Linux installed · vpnclient binary must be suid root · /tmp must not be mounted noexec or nosuid
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Exploit, Vendor Advisory x_refsource_misc
http://sec.angrypacket.com/advisories/0002_AP.vpnclient.txt
Third Party Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/9376.php
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://online.securityfocus.com/archive/1/277653
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/5056

Scores

EPSS 0.0146
EPSS Percentile 70.2%

Details

Status published
Products (1)
cisco/vpn_client < 3.5.1
Published May 28, 2002
Tracked Since Feb 18, 2026