CVE-2011-1521
Apache HTTP Server URL Redirection File Path Disclosure Vulnerability
Description
The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs.
INFO
Published Date :
May 24, 2011, 11:55 p.m.
Last Modified :
April 11, 2025, 12:51 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.9
Exploitability Score :
10.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2011-1521.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2011-1521 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2011-1521 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://bugs.python.org/issue11662 Added Reference http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS Added Reference http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS Added Reference http://hg.python.org/cpython/rev/96a6c128822b/ Added Reference http://hg.python.org/cpython/rev/b2934d98dac1/ Added Reference http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html Added Reference http://openwall.com/lists/oss-security/2011/03/24/5 Added Reference http://openwall.com/lists/oss-security/2011/03/28/2 Added Reference http://openwall.com/lists/oss-security/2011/09/11/1 Added Reference http://openwall.com/lists/oss-security/2011/09/13/2 Added Reference http://openwall.com/lists/oss-security/2011/09/15/5 Added Reference http://secunia.com/advisories/50858 Added Reference http://secunia.com/advisories/51024 Added Reference http://secunia.com/advisories/51040 Added Reference http://securitytracker.com/id?1025488 Added Reference http://support.apple.com/kb/HT5002 Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2011:096 Added Reference http://www.ubuntu.com/usn/USN-1592-1 Added Reference http://www.ubuntu.com/usn/USN-1596-1 Added Reference http://www.ubuntu.com/usn/USN-1613-1 Added Reference http://www.ubuntu.com/usn/USN-1613-2 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=690560 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=737366 Added Reference https://www.djangoproject.com/weblog/2011/sep/09/ Added Reference https://www.djangoproject.com/weblog/2011/sep/10/127/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Oct. 25, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:python:python:2.7:*:*:*:*:*:*:* OR *cpe:2.3:a:python:python:2.7.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 25, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:python:python:2.6:*:*:*:*:*:*:* OR *cpe:2.3:a:python:python:2.6.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 25, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:python:python:2.5:*:*:*:*:*:*:* OR *cpe:2.3:a:python:python:2.5.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 25, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:python:python:2.4:*:*:*:*:*:*:* OR *cpe:2.3:a:python:python:2.4.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 25, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:python:python:2.3:*:*:*:*:*:*:* OR *cpe:2.3:a:python:python:2.3.0:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
May. 25, 2011
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2011-1521 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2011-1521
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.29 }} -2.38%
score
0.83253
percentile