Apache HTTP Server up to 2.4.9 mod_deflate 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 labeled as problematic has been found in Apache HTTP Server up to 2.4.9. Impacted is an unknown function of the component mod_deflate. The manipulation results in resource management. This vulnerability is reported as CVE-2014-0118. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.4.9 (Web Server). It has been classified as problematic. Affected is an unknown part of the component mod_deflate. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability.

The weakness was disclosed 07/14/2014 by Giancarlo Pellegrino and Davide Balzarotti as Fixed in Apache httpd 2.4.10-dev as confirmed advisory (Website). The advisory is available at httpd.apache.org. This vulnerability is traded as CVE-2014-0118 since 12/03/2013. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The advisory points out:

A resource consumption flaw was found in mod_deflate. If request body decompression was configured (using the "DEFLATE" input filter), a remote attacker could cause the server to consume significant memory and/or CPU resources. The use of request body decompression is not a common configuration.

The vulnerability was handled as a non-public zero-day exploit for at least 145 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 78332 (Amazon Linux AMI : httpd24 (ALAS-2014-389)), 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 (94675), Tenable (78332), SecurityFocus (BID 68745†) and OSVDB (109231†). The entries VDB-6090, VDB-6092, VDB-9602 and VDB-67180 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 78332
Nessus Name: Amazon Linux AMI : httpd24 (ALAS-2014-389)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

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 🔍
02/19/2014 +78 days 🔍
07/14/2014 +145 days 🔍
07/14/2014 +0 days 🔍
07/14/2014 +0 days 🔍
07/18/2014 +4 days 🔍
07/20/2014 +2 days 🔍
10/12/2014 +84 days 🔍
02/09/2022 +2677 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Fixed in Apache httpd 2.4.10-dev
Researcher: Giancarlo Pellegrino, Davide Balzarotti
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0118 (🔍)
GCVE (CVE): GCVE-0-2014-0118
GCVE (VulDB): GCVE-100-67182

OVAL: 🔍
IAVM: 🔍

X-Force: 94675 - Apache HTTP Server mod_deflate denial of service, Medium Risk
SecurityFocus: 68745 - Apache HTTP Server CVE-2014-0118 Remote Denial of Service Vulnerability
OSVDB: 109231

See also: 🔍

Entryinfo

Created: 07/18/2014 11:02
Updated: 02/09/2022 15:41
Changes: 07/18/2014 11:02 (67), 05/03/2019 06:33 (18), 02/09/2022 15:41 (3)
Complete: 🔍
Cache ID: 216:5D0:103

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