CVE-2014-0240

mod_wsgi: possible privilege escalation in setuid() failure scenarios

Severity Score

6.2

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The mod_wsgi module before 3.5 for Apache, when daemon mode is enabled, does not properly handle error codes returned by setuid when run on certain Linux kernels, which allows local users to gain privileges via vectors related to the number of running processes.

El módulo mod_wsgi anterior a 3.5 para Apache, cuando modo demonio está habilitado, no maneja debidamente códigos de error devueltos por setuid cuando se ejecuta en ciertos kernels de Linux, lo que permite a usuarios locales ganar privilegios a través de vectores relacionados con el número de procesos en ejecución.

It was found that mod_wsgi did not properly drop privileges if the call to setuid() failed. If mod_wsgi was set up to allow unprivileged users to run WSGI applications, a local user able to run a WSGI application could possibly use this flaw to escalate their privileges on the system.

Note: mod_wsgi is not intended to provide privilege separation for WSGI applications. Systems relying on mod_wsgi to limit or sandbox the privileges of mod_wsgi applications should migrate to a different solution with proper privilege separation.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-12-03 CVE Reserved
2014-05-27 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls
CWE-271: Privilege Dropping / Lowering Errors

CAPEC

References (9)

URL	Tag	Source
http://blog.dscpl.com.au/2014/05/security-release-for-modwsgi-version-35.html	X_refsource_confirm
http://modwsgi.readthedocs.org/en/latest/release-notes/version-3.5.html	X_refsource_confirm
http://secunia.com/advisories/59551	Third Party Advisory
http://secunia.com/advisories/60094	Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/05/21/1	Mailing List
http://www.securityfocus.com/bid/67532	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2014-0789.html	2017-12-21
https://access.redhat.com/security/cve/CVE-2014-0240	2014-08-25
https://bugzilla.redhat.com/show_bug.cgi?id=1101863	2014-08-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				<= 3.4 Search vendor "Modwsgi" for product "Mod Wsgi" and version " <= 3.4"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.0 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.0"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.1 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.1"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.2 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.2"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.3 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.3"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.4 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.4"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.5 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.5"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				1.6 Search vendor "Modwsgi" for product "Mod Wsgi" and version "1.6"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.0 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.0"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.1 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.1"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.2 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.2"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.3 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.3"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.4 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.4"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.5 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.5"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.6 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.6"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.7 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.7"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				2.8 Search vendor "Modwsgi" for product "Mod Wsgi" and version "2.8"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				3.0 Search vendor "Modwsgi" for product "Mod Wsgi" and version "3.0"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				3.1 Search vendor "Modwsgi" for product "Mod Wsgi" and version "3.1"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				3.2 Search vendor "Modwsgi" for product "Mod Wsgi" and version "3.2"		-		Affected
Modwsgi Search vendor "Modwsgi"		Mod Wsgi Search vendor "Modwsgi" for product "Mod Wsgi"				3.3 Search vendor "Modwsgi" for product "Mod Wsgi" and version "3.3"		-		Affected