imPC@ndo IT

Tracker / CVE-2011-3639

CVE-2011-3639

Medium 4.3

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.

Affected products and versions

apache http_server
apache http_server2.0a1
apache http_server2.0a2
apache http_server2.0a3
apache http_server2.0a4
apache http_server2.0a5
apache http_server2.0a6
apache http_server2.0a7
apache http_server2.0a8
apache http_server2.0a9

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References