National Cyber Awareness System

Vulnerability Summary for CVE-2011-3639

Overview

The mod_proxy module in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x before 2.2.18, 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 by using the HTTP/0.9 protocol with a malformed URI containing an initial @ (at sign) character. 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: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=752080

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=752080

External Source: CONFIRM

Name: http://svn.apache.org/viewvc?view=revision&revision=1188745

Hyperlink:http://svn.apache.org/viewvc?view=revision&revision=1188745

External Source: REDHAT

Name: RHSA-2012:0128

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