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Last updated: Sat May 18 16:26:44 EDT 2013

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-4940

Original release date:06/27/2012
Last revised:05/15/2013
Source: US-CERT/NIST

Overview

The list_directory function in Lib/SimpleHTTPServer.py in SimpleHTTPServer in Python before 2.5.6c1, 2.6.x before 2.6.7 rc2, and 2.7.x before 2.7.2 does not place a charset parameter in the Content-Type HTTP header, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks against Internet Explorer 7 via UTF-7 encoding.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:2.6 (LOW) (AV:N/AC:H/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 4.9
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Allows unauthorized modification

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=803500
Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=803500
External Source: UBUNTU
Name: USN-1613-2
Hyperlink:http://www.ubuntu.com/usn/USN-1613-2
External Source: UBUNTU
Name: USN-1613-1
Hyperlink:http://www.ubuntu.com/usn/USN-1613-1
External Source: UBUNTU
Name: USN-1596-1
Hyperlink:http://www.ubuntu.com/usn/USN-1596-1
External Source: UBUNTU
Name: USN-1592-1
Hyperlink:http://www.ubuntu.com/usn/USN-1592-1
External Source: BID
Name: 54083
Hyperlink:http://www.securityfocus.com/bid/54083
External Source: SECUNIA
Name: 51040
Hyperlink:http://secunia.com/advisories/51040
External Source: SECUNIA
Name: 51024
Hyperlink:http://secunia.com/advisories/51024
External Source: SECUNIA
Name: 50858
Hyperlink:http://secunia.com/advisories/50858
External Source: JVNDB
Name: JVNDB-2012-000063
Hyperlink:http://jvndb.jvn.jp/jvndb/JVNDB-2012-000063
External Source: JVN
Name: JVN#51176027
Hyperlink:http://jvn.jp/en/jp/JVN51176027/index.html
External Source: CONFIRM
Name: http://bugs.python.org/issue11442
Hyperlink:http://bugs.python.org/issue11442

Vulnerable software and versions

Nav control imageConfiguration 1
line trunkNav control imageOR
line trunkspacerNav control image* cpe:/a:python:python:2.5.6 and previous versions
line trunkspacerNav control image* cpe:/a:python:python:2.5.4
line trunkspacerNav control image* cpe:/a:python:python:2.5.3
line trunkspacerNav control image* cpe:/a:python:python:2.5.2
line trunkspacerNav control image* cpe:/a:python:python:2.5.1
line trunkspacerNav control image* cpe:/a:python:python:2.4.3
line trunkspacerNav control image* cpe:/a:python:python:2.4.6
line trunkspacerNav control image* cpe:/a:python:python:2.4.4
line trunkspacerNav control image* cpe:/a:python:python:2.4.2
line trunkspacerNav control image* cpe:/a:python:python:2.4.1
line trunkspacerNav control image* cpe:/a:python:python:2.3.7
line trunkspacerNav control image* cpe:/a:python:python:2.3.2
line trunkspacerNav control image* cpe:/a:python:python:2.3.1
line trunkspacerNav control image* cpe:/a:python:python:2.3.4
line trunkspacerNav control image* cpe:/a:python:python:2.3.5
line trunkspacerNav control image* cpe:/a:python:python:2.3.3
line trunkspacerNav control image* cpe:/a:python:python:2.2.1
line trunkspacerNav control image* cpe:/a:python:python:2.2.2
line trunkspacerNav control image* cpe:/a:python:python:2.2.3
line trunkspacerNav control image* cpe:/a:python:python:2.1.3
line trunkspacerNav control image* cpe:/a:python:python:2.1.2
line trunkspacerNav control image* cpe:/a:python:python:2.1.1
line trunkspacerNav control image* cpe:/a:python:python:2.0.1
line trunkspacerNav control image* cpe:/a:python:python:1.6.1
line trunkspacerNav control image* cpe:/a:python:python:1.6
line trunkspacerNav control image* cpe:/a:python:python:1.2
line trunkspacerNav control image* cpe:/a:python:python:1.3
line trunkspacerNav control image* cpe:/a:python:python:1.5.2
line trunkspacerNav control image* cpe:/a:python:python:0.9.1
line trunkspacerNav control image* cpe:/a:python:python:0.9.0
Nav control imageConfiguration 2
line trunkNav control imageOR
line trunkspacerNav control image* cpe:/a:python:python:2.6.6
line trunkspacerNav control image* cpe:/a:python:python:2.6.5
line trunkspacerNav control image* cpe:/a:python:python:2.6.4
line trunkspacerNav control image* cpe:/a:python:python:2.6.3
line trunkspacerNav control image* cpe:/a:python:python:2.6.2
line trunkspacerNav control image* cpe:/a:python:python:2.6.1
Nav control imageConfiguration 3
spacerNav control imageOR
spacerspacerNav control image* cpe:/a:python:python:2.7
spacerspacerNav control image* cpe:/a:python:python:2.7.1:rc1
spacerspacerNav control image* cpe:/a:python:python:2.7.1
spacerspacerNav control image* cpe:/a:python:python:2.7.2:rc1
* Denotes Vulnerable Software
* Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Cross-Site Scripting (XSS) (CWE-79)
CVE Standard Vulnerability Entry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4940