Plugin ID | 256 |
Plugin name | Apache prior 1.3.28 ETag header inode number information disclosure |
Plugin filename | Apache prior 1.3.28 ETag header inode number information disclosure.plugin |
Plugin filesize | 4105 bytes |
Plugin family | HTTP |
Plugin created name | Marc Ruef |
Plugin created email | marc dot ruef at computec dot ch |
Plugin created web | http://www.computec.ch |
Plugin created company | computec.ch |
Plugin created date | 2004/09/21 |
Plugin updated name | Marc Ruef |
Plugin updated email | marc dot ruef at computec dot ch |
Plugin updated web | http://www.computec.ch |
Plugin updated company | computec.ch |
Plugin updated date | 2004/11/14 |
Plugin version | 2.0 |
Plugin changelog | Corrected the plugin structure and added the accuracy values in 1.1. Improved the pattern matching and introduced the plugin changelog in 2.0 |
Plugin protocol | tcp |
Plugin port | 80 |
Plugin procedure detection | open|send HEAD / HTTP/1.0\n\n|sleep|close|pattern_exists HTTP/1.[0-1] ### *Server: Apache/0.* OR HTTP/1.[0-1] ### *Server: Apache/1.[0-2].* OR HTTP/1.[0-1] ### *Server: Apache/1.3.[0-1]* OR HTTP/1.[0-1] ### *Server: Apache/1.3.2[0-7]* |
Plugin detection accuracy | 80 |
Plugin comment | This plugin was written with the ATK Attack Editor. |
Bug published email | www at openbsd dot org |
Bug published web | http://www.openbsd.org |
Bug published company | OpenBSD |
Bug advisory | http://www.openbsd.org/errata32.html |
Bug produced name | Apache Software Foundation |
Bug produced email | apache at apache dot org |
Bug produced web | http://httpd.apache.org |
Bug affected | Apache prior 1.3.28 |
Bug not affected | Apache 1.3.28 and newer or other solutions |
Bug vulnerability class | Configuration |
Bug description | The remote host is running an Apache web server. It has been reported that in Apache web server prior 1.3.28 is vulnerable to an information disclosure weakness if they are configured to use the FileETag directive. Due to the way in which Apache generates ETag response headers, it may be possible for an attacker to obtain sensitive information regarding server files. Specifically, ETag header fields returned to a client contain the file's inode number. Exploitation of this issue may provide an attacker with information that may be used to launch further attacks against a target network. |
Bug solution | 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. |
Bug fixing time | Approx. 2 hours |
Bug exploit availability | Yes |
Bug exploit url | http://www.securityfocus.com/bid/6939/exploit/ |
Bug remote | Yes |
Bug local | Yes |
Bug severity | Medium |
Bug popularity | 6 |
Bug simplicity | 7 |
Bug impact | 7 |
Bug risk | 6 |
Source SecurityFocus BID | 6939 |
Source Literature | Hacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427 |
Source Misc. | http://support.novell.com/cgi-bin/search/searchtid.cgi?/10090670.htm |