VDB-4884 · CVE-2012-1181 · XFDB 74181

Apache HTTP Server up to 2.3.6 mod_fcgid fcgid_spawn_ctl.c FcgidMaxProcessesPerClass HTTP Requests memory corruption

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6.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Apache HTTP Server up to 2.3.6. Affected by this vulnerability is the function FcgidMaxProcessesPerClass of the file fcgid_spawn_ctl.c of the component mod_fcgid. The manipulation as part of HTTP Requests results in memory corruption. This vulnerability is cataloged as CVE-2012-1181. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.3.6 (Web Server). It has been classified as critical. Affected is the function FcgidMaxProcessesPerClass of the file fcgid_spawn_ctl.c of the component mod_fcgid. The manipulation as part of a HTTP Requests leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

fcgid_spawn_ctl.c in the mod_fcgid module 2.3.6 for the Apache HTTP Server does not recognize the FcgidMaxProcessesPerClass directive for a virtual host, which makes it easier for remote attackers to cause a denial of service (memory consumption) via a series of HTTP requests that triggers a process count higher than the intended limit.

The weakness was shared 03/15/2012 by Kurt Seifried (Website). The advisory is shared for download at bugs.debian.org. This vulnerability is traded as CVE-2012-1181 since 02/14/2012. The exploitability is told to be easy. 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.

The vulnerability scanner Nessus provides a plugin with the ID 58393 (Debian DSA-2436-1 : libapache2-mod-fcgid - inactive resource limits), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading to version 2.3.6-1.1 eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (74181), Tenable (58393), SecurityFocus (BID 52565†), OSVDB (80349†) and Secunia (SA49846†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Web Server

Vendor

Apache

Name

HTTP Server

Version

License

open-source

Website

Vendor: https://www.apache.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58393
Nessus Name: Debian DSA-2436-1 : libapache2-mod-fcgid - inactive resource limits
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 71238
OpenVAS Name: Debian Security Advisory DSA 2436-1 (libapache2-mod-fcgid)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: HTTP Server 2.3.6-1.1

Timelineinfo

02/14/2012 🔍
03/15/2012 +30 days 🔍
03/16/2012 +1 days 🔍
03/19/2012 +3 days 🔍
03/19/2012 +0 days 🔍
03/19/2012 +0 days 🔍
03/20/2012 +1 days 🔍
03/23/2012 +3 days 🔍
03/24/2012 +1 days 🔍
06/21/2012 +89 days 🔍
07/10/2012 +19 days 🔍
03/22/2021 +3177 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: bugs.debian.org
Researcher: Kurt Seifried
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-1181 (🔍)
GCVE (CVE): GCVE-0-2012-1181
GCVE (VulDB): GCVE-100-4884

OVAL: 🔍

X-Force: 74181 - Apache HTTP Server mod_fcgid module denial of service, Medium Risk
SecurityFocus: 52565 - Apache 'mod_fcgid' Module Denial Of Service Vulnerability
Secunia: 49846 - Gentoo update for mod_fcgid, Not Critical
OSVDB: 80349
Vulnerability Center: 35407 - Apache HTTP Server Remote Denial of Service Vulnerability via a Series of HTTP Requests, High

Entryinfo

Created: 03/24/2012 15:52
Updated: 03/22/2021 09:40
Changes: 03/24/2012 15:52 (84), 04/16/2019 15:11 (7), 03/22/2021 09:40 (3)
Complete: 🔍
Cache ID: 216::103