National Cyber Awareness System

Vulnerability Summary for CVE-2011-4317

Overview

The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21, when the Revision 1179239 patch is in place, does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an @ (at sign) character and a : (colon) character in invalid positions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3368.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: MISC

Name: https://community.qualys.com/blogs/securitylabs/2011/11/23/apache-reverse-proxy-bypass-issue

Hyperlink:https://community.qualys.com/blogs/securitylabs/2011/11/23/apache-reverse-proxy-bypass-issue

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=756483

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=756483

External Source: SECTRACK

Name: 1026353

Hyperlink:http://www.securitytracker.com/id?1026353

External Source: CONFIRM

Name: http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html

Hyperlink:http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html

External Source: MANDRIVA

Name: MDVSA-2012:003

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2012:003

External Source: CONFIRM

Name: http://thread.gmane.org/gmane.comp.apache.devel/46440

Hyperlink:http://thread.gmane.org/gmane.comp.apache.devel/46440

External Source: CONFIRM

Name: http://support.apple.com/kb/HT5501

Hyperlink:http://support.apple.com/kb/HT5501

External Source: SECUNIA

Name: 48551

Hyperlink:http://secunia.com/advisories/48551

External Source: REDHAT

Name: RHSA-2012:0128

Hyperlink:http://rhn.redhat.com/errata/RHSA-2012-0128.html

External Source: HP

Name: HPSBOV02822

Hyperlink:http://marc.info/?l=bugtraq&m=134987041210674&w=2

External Source: HP

Name: SSRT100966

Hyperlink:http://marc.info/?l=bugtraq&m=134987041210674&w=2

External Source: SUSE

Name: openSUSE-SU-2013:0248

Hyperlink:http://lists.opensuse.org/opensuse-updates/2013-02/msg00012.html

External Source: SUSE

Name: openSUSE-SU-2013:0243

Hyperlink:http://lists.opensuse.org/opensuse-updates/2013-02/msg00009.html

External Source: APPLE

Name: APPLE-SA-2012-09-19-2

Hyperlink:http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html

External Source: HP

Name: HPSBMU02786

Hyperlink:http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041

External Source: HP

Name: SSRT100877

Hyperlink:http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041