Apache prior 1.3.28 ETag header inode number information disclosure 2.0
 
Plugin ID256
Plugin nameApache prior 1.3.28 ETag header inode number information disclosure
Plugin filenameApache prior 1.3.28 ETag header inode number information disclosure.plugin
Plugin filesize4105 bytes
Plugin familyHTTP
Plugin created nameMarc Ruef
Plugin created emailmarc dot ruef at computec dot ch
Plugin created webhttp://www.computec.ch
Plugin created companycomputec.ch
Plugin created date2004/09/21
Plugin updated nameMarc Ruef
Plugin updated emailmarc dot ruef at computec dot ch
Plugin updated webhttp://www.computec.ch
Plugin updated companycomputec.ch
Plugin updated date2004/11/14
Plugin version2.0
Plugin changelogCorrected the plugin structure and added the accuracy values in 1.1. Improved the pattern matching and introduced the plugin changelog in 2.0
Plugin protocoltcp
Plugin port80
Plugin procedure detectionopen|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 accuracy80
Plugin commentThis plugin was written with the ATK Attack Editor.
Bug published emailwww at openbsd dot org
Bug published webhttp://www.openbsd.org
Bug published companyOpenBSD
Bug advisoryhttp://www.openbsd.org/errata32.html
Bug produced nameApache Software Foundation
Bug produced emailapache at apache dot org
Bug produced webhttp://httpd.apache.org
Bug affectedApache prior 1.3.28
Bug not affectedApache 1.3.28 and newer or other solutions
Bug vulnerability classConfiguration
Bug descriptionThe 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 solutionIf 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 timeApprox. 2 hours
Bug exploit availabilityYes
Bug exploit urlhttp://www.securityfocus.com/bid/6939/exploit/
Bug remoteYes
Bug localYes
Bug severityMedium
Bug popularity6
Bug simplicity7
Bug impact7
Bug risk6
Source SecurityFocus BID6939
Source LiteratureHacking 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

This file was generated by the Attack Tool Kit (ATK), the open-sourced security scanner and exploiting framework.