Apache HTTP Server up to 2.2.3 mod_rewrite numeric error

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6.0$0-$5k0.02

A vulnerability, which was classified as critical, has been found in Apache HTTP Server up to 2.2.3 (Web Server). Affected by this issue is some unknown processing of the component mod_rewrite. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Off-by-one error in the ldap scheme handling in the Rewrite module (mod_rewrite) in Apache 1.3 from 1.3.28, 2.0.46 and other versions before 2.0.59, and 2.2, when RewriteEngine is enabled, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted URLs that are not properly handled using certain rewrite rules.

The weakness was shared 07/28/2006 by Mark Dowd with ISS X-Force (Website). The advisory is available at apache.org. This vulnerability is handled as CVE-2006-3747 since 07/20/2006. Access to the local network is required for this attack to succeed. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

After 4 weeks, there has been an exploit disclosed. The exploit is available at saintcorporation.com. It is declared as highly functional. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22152 (Slackware 10.0 / 10.1 / 10.2 / 8.1 / 9.0 / 9.1 / current : Apache httpd (SSA:2006-209-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86846 (HP System Management Homepage Code Execution and Denial of Service).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at httpd.apache.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 4 days after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 11679.

The vulnerability is also documented in the databases at X-Force (28063), Exploit-DB (2237), Tenable (22152), SecurityFocus (BID 19204†) and OSVDB (27588†). The entries VDB-2699, VDB-2701 and VDB-2700 are related to this item.

Productinfo

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

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Nessus ID: 22152
Nessus Name: Slackware 10.0 / 10.1 / 10.2 / 8.1 / 9.0 / 9.1 / current : Apache httpd (SSA:2006-209-01)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Port: 🔍

OpenVAS ID: 57201
OpenVAS Name: Debian Security Advisory DSA 1131-1 (apache)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/apache_rewrite_ldap
Saint Name: Apache mod_rewrite LDAP URL buffer overflow

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: apache_mod_rewrite_ldap.rb
MetaSploit Name: Apache Module mod_rewrite LDAP Protocol Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: httpd.apache.org

Snort ID: 11679

Timelineinfo

07/20/2006 🔍
07/28/2006 +8 days 🔍
07/28/2006 +0 days 🔍
07/28/2006 +0 days 🔍
07/28/2006 +0 days 🔍
07/28/2006 +0 days 🔍
07/28/2006 +0 days 🔍
08/01/2006 +3 days 🔍
08/04/2006 +3 days 🔍
08/20/2006 +16 days 🔍
01/13/2025 +6721 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: apache.org
Researcher: Mark Dowd
Organization: ISS X-Force
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-3747 (🔍)
CERT: 🔍
X-Force: 28063
SecurityFocus: 19204 - Apache Mod_Rewrite Off-By-One Buffer Overflow Vulnerability
Secunia: 21197 - Apache mod_rewrite Off-By-One Buffer Overflow Vulnerability, Moderately Critical
OSVDB: 27588 - Apache HTTP Server mod_rewrite LDAP Protocol URL Handling Overflow
SecurityTracker: 1016601 - Apache mod_rewrite Off-by-one Error Lets Remote Users Execute Arbitrary Code
Vupen: ADV-2006-3017

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

Entryinfo

Created: 07/28/2006 04:15 PM
Updated: 01/13/2025 04:21 AM
Changes: 07/28/2006 04:15 PM (90), 04/16/2019 03:10 PM (13), 03/13/2021 11:10 AM (7), 03/13/2021 11:12 AM (1), 06/24/2024 02:27 AM (15), 01/13/2025 04:21 AM (1)
Complete: 🔍
Cache ID: 18:424:40

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