245
Apache prior 2.0.49 mod_disk_cache module client authentication weak encryption
HTTP
2004/09/16
Marc Ruef
marc dot ruef at computec dot ch
http://www.computec.ch
computec.ch
Marc Ruef
marc dot ruef at computec dot ch
http://www.computec.ch
computec.ch
2004/11/14
2.0
Enhanced the solution text in version 1.1. Corrected the plugin structure and added the accuracy values in 1.2. Improved the pattern matching and introduced the plugin changelog in 2.0
tcp
80
open|send HEAD / HTTP/1.0\n\n|sleep|close|pattern_exists HTTP/1.[0-1] ### *Server: Apache/[0-1].* OR HTTP/1.[0-1] ### *Server: Apache/2.0.[0-3]* OR HTTP/1.[0-1] ### *Server: Apache/2.0.4[0-8]*
80
This plugin was written with the ATK Attack Editor.
Andreas Steinmetz
ast at domdv dot de
2004/03/20
http://www.securityfocus.com/archive/1/358099
Apache Software Foundation
apache at apache dot org
http://httpd.apache.org
Apache prior 2.0.49
Apache 2.0.49 and newer or other solutions
Weak Encryption
The remote host is running an Apache web server. It has been reported that in Apache web server prior 2.0.49 fails to handle proxy and standard authentication credentials securely. The mod_disk_cache module is reported to store HTTP Hop-by-hop headers including user login and password information in plaintext format on disk. This issue could be used in conjunction with other possible vulnerabilities in a host to gain access to user authentication credentials. Successful exploitation of this issue may lead to further attacks agains vulnerable users of the affected host.
If the web server is not used it should be de-installed or de-activated. Install the newest patch or bugfix to solve the problem or upgrade to the latest software version which is not vulnerable anymore. To make it harder to find the server the daemon could be configured to listen at another port (e.g. 8081). Alternation of the application banner can confuse an attacker and let him determine the wrong software. Additionally limit unwanted connections and communications with firewalling.
Approx. 2 hours
Yes
http://www.securityfocus.com/bid/9933/exploit/
Yes
Yes
Medium
5
6
7
6
9933
Hacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427
http://www.securityfocus.com/advisories/6472
