Apache 2.0.35 to 2.0.50 .htaccess environment variables buffer overflow 2.0
 
Plugin ID237
Plugin nameApache 2.0.35 to 2.0.50 .htaccess environment variables buffer overflow
Plugin filenameApache 2.0.35 to 2.0.50 .htaccess environment variables buffer overflow.plugin
Plugin filesize3977 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 date2004/09/16
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 date2004/11/13
Plugin version2.0
Plugin changelogEnhanced the plugin in version 1.1. Corrected the plugin structure and added the accuracy values in 1.2. Added the product produce information in version 1.3. Enhanced the pattern matching in version 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/2.0.[3-4][0-9]* OR HTTP/1.[0-1] ### *Server: Apache/2.0.50*
Plugin detection accuracy80
Plugin commentI am not sure which Apache versions that are affected. http://www.uniras.gov.uk/vuls/2004/403518/ and Secunia are talking about Apache prior 2.0.51 - But the Nessus plugin does only check up to 1.3.31.
Bug published companySwedish IT Incident Centre
Bug published date2004/09/15
Bug advisoryhttp://www.uniras.gov.uk/vuls/2004/403518/
Bug produced nameApache Software Foundation
Bug produced emailapache at apache dot org
Bug produced webhttp://httpd.apache.org
Bug affectedApache 2.0.35 to 2.0.50
Bug not affectedApache web servers newer than 2.0.50 or other web servers
Bug vulnerability classDenial Of Service
Bug descriptionThe remote host is running an Apache web server. The installed version is vulnerable to a buffer overflow attack. A local attacker may be able to run arbitrary code with corrupt .htaccess files. The parsing of environment variables seems to be vulnerable to the attack.
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. 40 minutes
Bug exploit availabilityNo
Bug remoteNo
Bug localYes
Bug severityMedium
Bug popularity6
Bug simplicity6
Bug impact9
Bug risk7
Bug Nessus riskHigh
Source CVECAN-2004-0786
Source Secunia ID12540
Source scipID844
Source Heise News51138
Source Heise Security51138
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://xforce.iss.net/xforce/xfdb/17413

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