CVE-2007-2232

Cosign <= 2.0.1 - Authentication Bypass via CR Sequence in Cookie Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-2232. PoCs published by Jon Oberheide.

AI-analyzed exploit summary This exploit demonstrates an authentication bypass in the 'cosign' application by injecting malformed input to bypass authentication mechanisms. The PoC leverages improper input sanitization to gain unauthorized access.

Description

The CHECK command in Cosign 2.0.1 and earlier allows remote attackers to bypass authentication requirements via CR (\r) sequences in the cosign cookie parameter.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jon Oberheide · textwebappscgi
https://www.exploit-db.com/exploits/29842

This exploit demonstrates an authentication bypass in the 'cosign' application by injecting malformed input to bypass authentication mechanisms. The PoC leverages improper input sanitization to gain unauthorized access.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: cosign versions prior to 1.9.4b and 2.0.2a
No auth needed
Prerequisites: network access to the target service
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/465386/100/100/threaded
Patch, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/24845
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/1359

Scores

EPSS 0.0247
EPSS Percentile 82.4%

Details

Status published
Products (12)
cosign/cosign 0.7.0
cosign/cosign 0.8.0
cosign/cosign 0.9.0
cosign/cosign 1.0
cosign/cosign 1.1
cosign/cosign 1.5
cosign/cosign 1.6
cosign/cosign 1.7
cosign/cosign 1.8
cosign/cosign 1.8.5
... and 2 more
Published Apr 25, 2007
Tracked Since Feb 18, 2026