CVE-2011-4944

python: distutils creates ~/.pypirc insecurely

Severity Score

7.4

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Python 2.6 through 3.2 creates ~/.pypirc with world-readable permissions before changing them after data has been written, which introduces a race condition that allows local users to obtain a username and password by reading this file.

Python v2.6 a través de 3.2 crea ~/.pypirc con permisos de lectura en todo el mundo antes de cambiar los datos que se han escrito, introduce una condición de carrera que permite a usuarios locales obtener un nombre de usuario y contraseña mediante la lectura de este archivo.

Multiple vulnerabilities has been discovered and corrected in python. The _ssl module would always disable the CBC IV attack countermeasure. A flaw was found in the way the Python SimpleHTTPServer module generated directory listings. An attacker able to upload a file with a specially-crafted name to a server could possibly perform a cross-site scripting attack against victims visiting a listing page generated by SimpleHTTPServer, for a directory containing the crafted file. A race condition was found in the way the Python distutils module set file permissions during the creation of the.pypirc file. Various other issues were also addressed.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-12-23 CVE Reserved
2012-06-18 CVE Published
2024-08-07 CVE Updated
2025-05-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (21)

URL	Tag	Source
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=650555	X_refsource_misc
http://bugs.python.org/file23824/pypirc-secure.diff	X_refsource_confirm
http://bugs.python.org/issue13512	X_refsource_confirm
http://secunia.com/advisories/50858	Third Party Advisory
http://secunia.com/advisories/51024	Third Party Advisory
http://secunia.com/advisories/51040	Third Party Advisory
http://secunia.com/advisories/51087	Third Party Advisory
http://secunia.com/advisories/51089	Third Party Advisory
http://www.openwall.com/lists/oss-security/2012/03/27/10	Mailing List
http://www.openwall.com/lists/oss-security/2012/03/27/2	Mailing List
http://www.openwall.com/lists/oss-security/2012/03/27/5	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html	2019-10-25
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html	2019-10-25
http://www.ubuntu.com/usn/USN-1592-1	2019-10-25
http://www.ubuntu.com/usn/USN-1596-1	2019-10-25
http://www.ubuntu.com/usn/USN-1613-1	2019-10-25
http://www.ubuntu.com/usn/USN-1613-2	2019-10-25
http://www.ubuntu.com/usn/USN-1615-1	2019-10-25
http://www.ubuntu.com/usn/USN-1616-1	2019-10-25
https://bugzilla.redhat.com/show_bug.cgi?id=758905	2012-06-18
https://access.redhat.com/security/cve/CVE-2011-4944	2012-06-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.1 Search vendor "Python" for product "Python" and version "2.6.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.2 Search vendor "Python" for product "Python" and version "2.6.2"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.3 Search vendor "Python" for product "Python" and version "2.6.3"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.4 Search vendor "Python" for product "Python" and version "2.6.4"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.5 Search vendor "Python" for product "Python" and version "2.6.5"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.6 Search vendor "Python" for product "Python" and version "2.6.6"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.7 Search vendor "Python" for product "Python" and version "2.6.7"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.8 Search vendor "Python" for product "Python" and version "2.6.8"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.2150 Search vendor "Python" for product "Python" and version "2.6.2150"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.6.6150 Search vendor "Python" for product "Python" and version "2.6.6150"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.1 Search vendor "Python" for product "Python" and version "2.7.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.1 Search vendor "Python" for product "Python" and version "2.7.1"		rc1		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.2 Search vendor "Python" for product "Python" and version "2.7.2"		rc1		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.3 Search vendor "Python" for product "Python" and version "2.7.3"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.1150 Search vendor "Python" for product "Python" and version "2.7.1150"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.1150 Search vendor "Python" for product "Python" and version "2.7.1150"		x64		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				2.7.2150 Search vendor "Python" for product "Python" and version "2.7.2150"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.0 Search vendor "Python" for product "Python" and version "3.0"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.0.1 Search vendor "Python" for product "Python" and version "3.0.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1 Search vendor "Python" for product "Python" and version "3.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.1 Search vendor "Python" for product "Python" and version "3.1.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.2 Search vendor "Python" for product "Python" and version "3.1.2"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.3 Search vendor "Python" for product "Python" and version "3.1.3"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.4 Search vendor "Python" for product "Python" and version "3.1.4"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.5 Search vendor "Python" for product "Python" and version "3.1.5"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.2150 Search vendor "Python" for product "Python" and version "3.1.2150"		x64		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2 Search vendor "Python" for product "Python" and version "3.2"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2 Search vendor "Python" for product "Python" and version "3.2"		alpha		Affected