VDB-1728 · CVE-2005-2700 · RHSA-2005:608

mod_ssl up to 2.8.24 SSLVerifyClient Remote Code Execution

CVSS Meta Temp Score
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability was found in mod_ssl. It has been declared as problematic. Affected by this issue is the function SSLVerifyClient. The manipulation results in Remote Code Execution. This vulnerability was named CVE-2005-2700. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in mod_ssl. Affected is the function SSLVerifyClient. The manipulation with an unknown input leads to a remote code execution vulnerability. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not properly enforce "SSLVerifyClient require" in a per-location context, which allows remote attackers to bypass intended access restrictions.

The weakness was presented 09/05/2005 with mod_ssl Team as RHSA-2005:608. This vulnerability is traded as CVE-2005-2700 since 08/26/2005. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 19714 (RHEL 2.1 : mod_ssl (RHSA-2005:773)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165126 (SUSE Security Update for Apache2 (SUSE-SA:2006:051)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at modssl.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3892.

The vulnerability is also documented in the databases at X-Force (22149), Tenable (19714), SecurityFocus (BID 14721†), OSVDB (19188†) and Secunia (SA22523†). See VDB-1948 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 19714
Nessus Name: RHEL 2.1 : mod_ssl (RHSA-2005:773)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 55261
OpenVAS Name: Debian Security Advisory DSA 805-1 (apache2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: modssl.org
TippingPoint: 🔍

Timelineinfo

08/26/2005 🔍
09/01/2005 +6 days 🔍
09/05/2005 +4 days 🔍
09/05/2005 +0 days 🔍
09/05/2005 +0 days 🔍
09/06/2005 +0 days 🔍
09/06/2005 +0 days 🔍
09/11/2005 +5 days 🔍
09/12/2005 +1 days 🔍
09/17/2005 +5 days 🔍
12/17/2024 +7031 days 🔍

Sourcesinfo

Researcher: http://www.modssl.org
Organization: mod_ssl Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2700 (🔍)
GCVE (CVE): GCVE-0-2005-2700
GCVE (VulDB): GCVE-100-1728

OVAL: 🔍

CERT: 🔍
X-Force: 22149
SecurityFocus: 14721 - Apache Mod_SSL SSLVerifyClient Restriction Bypass Vulnerability
Secunia: 22523 - IBM HMC Apache2 / OpenSSL Vulnerabilities, Moderately Critical
OSVDB: 19188 - Apache HTTP Server mod_ssl SSLVerifyClient Per-location Context Restriction Bypass
Vulnerability Center: 9114 - Mod_ssl <2.8.24 ssl_engine_kernel.c Enables Bypass of Access Restrictions, Medium
Vupen: ADV-2006-4207

See also: 🔍

Entryinfo

Created: 09/06/2005 12:03
Updated: 12/17/2024 06:39
Changes: 09/06/2005 12:03 (90), 05/17/2018 23:22 (2), 03/12/2021 06:49 (2), 12/17/2024 06:39 (18)
Complete: 🔍
Cache ID: 216:550:103

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

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