Apache HTTP Server up to 2.4.9 mod_cgid resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apache HTTP Server up to 2.4.9. This issue affects some unknown processing of the component mod_cgid. The manipulation leads to resource management. This vulnerability is documented as CVE-2014-0231. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.4.9 (Web Server) and classified as problematic. This issue affects some unknown functionality of the component mod_cgid. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The mod_cgid module in the Apache HTTP Server before 2.4.10 does not have a timeout mechanism, which allows remote attackers to cause a denial of service (process hang) via a request to a CGI script that does not read from its stdin file descriptor.

The weakness was released 07/14/2014 by Rainer Jung with Apache as Fixed in Apache httpd 2.4.10-dev as confirmed advisory (Website). The advisory is shared at httpd.apache.org. The identification of this vulnerability is CVE-2014-0231 since 12/03/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

A flaw was found in mod_cgid. If a server using mod_cgid hosted CGI scripts which did not consume standard input, a remote attacker could cause child processes to hang indefinitely, leading to denial of service.

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 78331 (Amazon Linux AMI : httpd (ALAS-2014-388)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185106 (HP-UX Apache Web Server Suite Remote Denial of Service Vulnerability (HPSBUX03337)).

Upgrading to version 2.4.10-dev eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (94674), Tenable (78331), SecurityFocus (BID 68742†), OSVDB (109234†) and Secunia (SA60536†). Entries connected to this vulnerability are available at VDB-6090, VDB-6092, VDB-9602 and VDB-67180. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 78331
Nessus Name: Amazon Linux AMI : httpd (ALAS-2014-388)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 702989
OpenVAS Name: Debian Security Advisory DSA 2989-1 (apache2 - security update)
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: 🔍

Upgrade: HTTP Server 2.4.10-dev

Timelineinfo

12/03/2013 🔍
06/16/2014 +195 days 🔍
07/14/2014 +28 days 🔍
07/14/2014 +0 days 🔍
07/18/2014 +4 days 🔍
07/18/2014 +0 days 🔍
07/20/2014 +2 days 🔍
08/21/2014 +32 days 🔍
10/12/2014 +52 days 🔍
04/12/2019 +1643 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Fixed in Apache httpd 2.4.10-dev
Researcher: Rainer Jung
Organization: Apache
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0231 (🔍)
GCVE (CVE): GCVE-0-2014-0231
GCVE (VulDB): GCVE-100-67181

OVAL: 🔍
IAVM: 🔍

X-Force: 94674 - Apache HTTP Server mod_cgid module denial of service, Medium Risk
SecurityFocus: 68742 - Apache HTTP Server CVE-2014-0231 Remote Denial of Service Vulnerability
Secunia: 60536 - SUSE update for apache2, Moderately Critical
OSVDB: 109234

See also: 🔍

Entryinfo

Created: 07/18/2014 10:57
Updated: 04/12/2019 09:44
Changes: 07/18/2014 10:57 (69), 04/12/2019 09:44 (21)
Complete: 🔍
Cache ID: 216:E24:103

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