Ietf MD5 cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Ietf MD5. This affects an unknown function. The manipulation results in cryptographic issue. This vulnerability was named CVE-2004-2761. In addition, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Ietf MD5 (affected version not known). Affected is some unknown functionality. The manipulation with an unknown input leads to a cryptographic issue vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on integrity. CVE summarizes:

The MD5 Message-Digest Algorithm is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of MD5 in the signature algorithm of an X.509 certificate.

The bug was discovered 12/30/2008. The weakness was presented 01/05/2009 by Alexander Sotirov as confirmed advisory (CERT.org). The advisory is shared for download at kb.cert.org. This vulnerability is traded as CVE-2004-2761 since 01/05/2009. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 35595 (Fedora 9 : nss-3.12.2.0-2.fc9 (2009-1276)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 42012 (X.509 Certificate MD5 Signature Collision Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (47737), Exploit-DB (24807), Tenable (35595), SecurityFocus (BID 33065†) and OSVDB (45127†). See VDB-55496, VDB-55495 and VDB-100245 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

ADP CISA Base Score: 9.8
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 35595
Nessus Name: Fedora 9 : nss-3.12.2.0-2.fc9 (2009-1276)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63328
OpenVAS Name: Fedora Core 9 FEDORA-2009-1276 (nss)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

12/07/2004 🔍
12/30/2008 +1484 days 🔍
12/30/2008 +0 days 🔍
01/05/2009 +6 days 🔍
01/05/2009 +0 days 🔍
01/05/2009 +0 days 🔍
01/07/2009 +2 days 🔍
02/05/2009 +29 days 🔍
02/05/2009 +0 days 🔍
11/08/2010 +641 days 🔍
03/17/2015 +1590 days 🔍
05/28/2026 +4090 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Alexander Sotirov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2004-2761 (🔍)
GCVE (CVE): GCVE-0-2004-2761
GCVE (VulDB): GCVE-100-45768

OVAL: 🔍

CERT: 🔍
X-Force: 47737
SecurityFocus: 33065 - IETF RFC 3279 X.509 Certificate MD5 Signature Collision Vulnerability
Secunia: 33826
OSVDB: 45127 - RFC 1321 MD5 algorithm weak security
SecurityTracker: 1024697
Vulnerability Center: 20389 - [cisco-sr-20090115-md5] MD5 Message-Digest Algorithm X.509 Certificate Signature Collision Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/28/2026 21:41
Changes: 03/17/2015 16:11 (78), 08/23/2019 09:46 (12), 01/11/2025 22:59 (25), 01/19/2025 05:02 (1), 05/28/2026 21:41 (12)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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