CVE-2014-0117

Apache HTTP Server mod_proxy Denial Of Service Vulnerability

Severity Score

4.3

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The mod_proxy module in the Apache HTTP Server 2.4.x before 2.4.10, when a reverse proxy is enabled, allows remote attackers to cause a denial of service (child-process crash) via a crafted HTTP Connection header.

El módulo mod_proxy en Apache HTTP Server 2.4.x anterior a 2.4.10, cuando un proxy inverso está habilitado, permite a atacantes remotos causar una denegación de servicio (caída del proceso hijo) a través de una cabecera de conexión HTTP manipulada.

A denial of service flaw was found in the mod_proxy httpd module. A remote attacker could send a specially crafted request to a server configured as a reverse proxy using a threaded Multi-Processing Modules (MPM) that would cause the httpd child process to crash.

This vulnerability allows remote attackers to cause a denial of service condition on vulnerable installations of Apache HTTP Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the mod_proxy module. The issue lies in the processing of HTTP headers when an invalid request is made. An attacker can leverage this flaw to crash a remote instance of Apache HTTP server.

Apache versions 2.4.x prior to 2.4.10 suffer from a denial of service condition when mod_proxy is in use.

*Credits: AKAT-122733db72ab3ed94b5f8a1ffcde850251fe6f466Marek Kroemeke

CVSS Scores

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-12-03 CVE Reserved
2014-07-18 CVE Published
2024-03-01 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (25)

URL	Tag	Source
http://advisories.mageia.org/MGASA-2014-0305.html	X_refsource_confirm
http://seclists.org/fulldisclosure/2014/Jul/117	Mailing List
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c	X_refsource_confirm
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c?r1=1599486&r2=1610674&diff_format=h	X_refsource_confirm
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c	X_refsource_confirm
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c?r1=1609680&r2=1610674&diff_format=h	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html	X_refsource_confirm
http://zerodayinitiative.com/advisories/ZDI-14-239	X_refsource_misc
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r9821b0a32a1d0a1b4947abb6f3630053fcbb2ec905d9a32c2bd4d4ee%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/ra7f6aeb28661fbf826969526585f16856abc4615877875f9d3b35ef4%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://support.apple.com/HT204659	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
http://httpd.apache.org/security/vulnerabilities_24.html	2023-11-07

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=1120599	2014-07-23
https://access.redhat.com/security/cve/CVE-2014-0117	2014-07-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.4.6 Search vendor "Apache" for product "Http Server" and version "2.4.6"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.4.7 Search vendor "Apache" for product "Http Server" and version "2.4.7"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.4.8 Search vendor "Apache" for product "Http Server" and version "2.4.8"		-		Affected
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				2.4.9 Search vendor "Apache" for product "Http Server" and version "2.4.9"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				<= 10.10.2 Search vendor "Apple" for product "Mac Os X" and version " <= 10.10.2"		-		Affected