Apache HTTP Server 2.0.52 CGI Program realm memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical was found in Apache HTTP Server 2.0.52 (Web Server). This vulnerability affects an unknown function of the component CGI Program. The manipulation of the argument realm with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in htdigest in Apache 2.0.52 may allow attackers to execute arbitrary code via a long realm argument. NOTE: since htdigest is normally only locally accessible and not setuid or setgid, there are few attack vectors which would lead to an escalation of privileges, unless htdigest is executed from a CGI program. Therefore this may not be a vulnerability.

The bug was discovered 05/04/2005. The weakness was released 01/06/2005 by Luca Ercoli (Website). The advisory is shared for download at securiteam.com. This vulnerability was named CVE-2005-1344 since 04/27/2005. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 20509 (Ubuntu 4.10 / 5.04 : apache2 vulnerability (USN-120-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115270 (Apple Mac OS X Security Update 2005-007 v1.1 Not Installed (APPLE-SA-2005-08-17)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (20383), Tenable (20509), SecurityFocus (BID 13537†), OSVDB (12848†) and Secunia (SA16449†).








  • end of life (old version)

CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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Class: Memory corruption
CWE: CWE-119

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
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Nessus ID: 20509
Nessus Name: Ubuntu 4.10 / 5.04 : apache2 vulnerability (USN-120-1)
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Recommended: Upgrade
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01/06/2005 🔍
01/12/2005 +5 days 🔍
04/27/2005 +105 days 🔍
05/02/2005 +5 days 🔍
05/04/2005 +2 days 🔍
05/04/2005 +0 days 🔍
05/06/2005 +2 days 🔍
05/06/2005 +0 days 🔍
05/08/2005 +2 days 🔍
08/16/2005 +100 days 🔍
01/15/2006 +152 days 🔍
03/11/2015 +3342 days 🔍
06/04/2019 +1546 days 🔍


Vendor: apache.org

Advisory: securiteam.com
Researcher: Luca Ercoli
Status: Not defined

CVE: CVE-2005-1344 (🔍)
X-Force: 20383
SecurityFocus: 13537 - Apache HTDigest Realm Command Line Argument Buffer Overflow Vulnerability
Secunia: 16449 - Mac OS X Security Update Fixes Multiple Vulnerabilities, Highly Critical
OSVDB: 12848 - Apache HTTP Server htdigest realm Variable Overflow
Vulnerability Center: 7874 - Buffer Overflow in \x27htdigest\x27 in Apache 2.0.52, Medium

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


Created: 03/11/2015 11:41 AM
Updated: 06/04/2019 06:34 PM
Changes: 03/11/2015 11:41 AM (83), 06/04/2019 06:34 PM (4)
Complete: 🔍
Cache ID: 44:EF6:40


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