CVE-2002-0656

OpenSSL 0.9.6d and earlier, 0.9.7-beta2 and earlier - Remote Code Execution via Large Client Master Key or Session ID

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2002-0656. PoCs published by Solar Eclipse.

AI-analyzed exploit summary This is a functional remote exploit for CVE-2002-0656, targeting the KEY_ARG buffer overflow in OpenSSL 0.9.6d and earlier. It leverages the vulnerability to achieve remote code execution with the privileges of the server process (e.g., nobody for Apache, root for other services).

Description

Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.

Exploits (1)

exploitdb WORKING POC
by Solar Eclipse · textremoteunix
https://www.exploit-db.com/exploits/40347

This is a functional remote exploit for CVE-2002-0656, targeting the KEY_ARG buffer overflow in OpenSSL 0.9.6d and earlier. It leverages the vulnerability to achieve remote code execution with the privileges of the server process (e.g., nobody for Apache, root for other services).

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: OpenSSL 0.9.6d and earlier
No auth needed
Prerequisites: Target must be running a vulnerable version of OpenSSL · SSL service must be accessible (default port 443)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (12)

Core 12
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/5363
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/5362
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/102795
Various Sources vendor-advisory x_refsource_mandrake
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-046.php
Various Sources vendor-advisory x_refsource_caldera
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-033.0.txt
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/258555
Third Party Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/9714.php
US Government Resource third-party-advisory x_refsource_cert
http://www.cert.org/advisories/CA-2002-23.html
Various Sources vendor-advisory x_refsource_caldera
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-033.1.txt
Vendor Advisory vendor-advisory x_refsource_conectiva
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000513
Various Sources vendor-advisory x_refsource_freebsd
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:33.openssl.asc
Third Party Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/9716.php

Scores

EPSS 0.8982
EPSS Percentile 99.8%

Details

Status published
Products (33)
apple/mac_os_x 10.0
apple/mac_os_x 10.0.1
apple/mac_os_x 10.0.2
apple/mac_os_x 10.0.3
apple/mac_os_x 10.0.4
apple/mac_os_x 10.1
apple/mac_os_x 10.1.1
apple/mac_os_x 10.1.2
apple/mac_os_x 10.1.3
apple/mac_os_x 10.1.4
... and 23 more
Published Aug 12, 2002
Tracked Since Feb 18, 2026