CVE-2011-1521

MEDIUM

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.

References

http://bugs.python.org/issue11662

http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS

http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS

http://hg.python.org/cpython/rev/96a6c128822b/

http://hg.python.org/cpython/rev/b2934d98dac1/

http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html

http://openwall.com/lists/oss-security/2011/03/24/5

http://openwall.com/lists/oss-security/2011/03/28/2

http://openwall.com/lists/oss-security/2011/09/11/1

http://openwall.com/lists/oss-security/2011/09/13/2

http://openwall.com/lists/oss-security/2011/09/15/5

http://secunia.com/advisories/50858

http://secunia.com/advisories/51024

http://secunia.com/advisories/51040

http://securitytracker.com/id?1025488

http://support.apple.com/kb/HT5002

http://www.mandriva.com/security/advisories?name=MDVSA-2011:096

http://www.ubuntu.com/usn/USN-1592-1

http://www.ubuntu.com/usn/USN-1596-1

http://www.ubuntu.com/usn/USN-1613-1

http://www.ubuntu.com/usn/USN-1613-2

https://bugzilla.redhat.com/show_bug.cgi?id=690560

https://bugzilla.redhat.com/show_bug.cgi?id=737366

https://www.djangoproject.com/weblog/2011/sep/09/

https://www.djangoproject.com/weblog/2011/sep/10/127/

Details

Source: MITRE

Published: 2011-05-24

Updated: 2014-02-21

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 6.4

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM