4D WebStar up to 5.3.3 symbolic link vulnerability 2.0
 
Plugin ID100
Plugin name4D WebStar up to 5.3.3 symbolic link vulnerability
Plugin filename4D WebStar up to 5.3.3 symbolic link vulnerability.plugin
Plugin filesize3765 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 date2004/08/16
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 date2004/11/14
Plugin version2.0
Plugin changelogDeleted a not needed sleep command before the send command 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
Plugin protocoltcp
Plugin port80
Plugin procedure detectionopen|send GET HTTP/1.0\n\n|sleep|close|pattern_exists HTTP/#.# ### *Server: 4D_WebSTAR*
Plugin detection accuracy70
Plugin commentCheck is copied from the Nessus plugin (see Nessus ID listed in the sources).
Bug published company@stake inc.
Bug published date2004/07/13
Bug advisoryhttp://www.securityfocus.com/archive/1/368778
Bug produced name4D
Bug produced emailinfo at 4d dot com
Bug produced webhttp://www.4d.com
Bug affected4D WebSTAR 4.0 to 4D WebSTAR 5.3.2
Bug not affected4D WebSTAR 5.3.3 and newer
Bug vulnerability classSymlink
Bug descriptionThe remote server is running 4D WebStar FTP Server. 4D WebStar is reportedly vulnerable to a local symbolic link vulnerability. This issue is due to a design error that causes the application to open files without properly verifying their existence or their absolute location. Successful exploitation of this issue will allow an attacker to write to arbitrary files writable by the affected application, facilitating privilege escalation.
Bug solutionUpgrade to 4D WebStar 5.3.3 or newer. The server should be deactivated or de-installed if not necessary. To make it harder to find the server the daemon could be configured to listen at another port (e.g. 8081). Try to prevent unwanted connection attempts by filtering traffic with firewalling. Alternation of the application banner can confuse an attacker and let him determine the wrong software.
Bug fixing timeApprox. 2 hours
Bug exploit availabilityYes
Bug exploit urlhttp://www.securityfocus.com/bid/10714/exploit/
Bug remoteYes
Bug localYes
Bug severityLow
Bug popularity3
Bug simplicity5
Bug impact6
Bug risk4
Bug Nessus riskLow
Bug check toolsNessus
Source SecurityFocus BID10714
Source Nessus ID14241
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://www.computec.ch

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