Title: Anaconda Foundation Directory Traversal Vulnerability
Severity: HIGH
Description:
Anaconda Foundation Directory is an application which facilitates the integration of the Open Directory Project, which is a comprehensive directory listing maintained by a team of volunteers. Usage of the Open Directory Project is free under certain conditions. Search engines such as Lycos and Google utilize the Open Directory Project. Anaconda serves as a search engine front end to Open Directory Project listings and can be seamlessly integrated into an existing website.
A directory traversal vulnerability exists which allows a remote user to gain unauthorized access to arbitrary files on a filesystem Anaconda Foundation Directory resides on.
The file 'apexec.pl' located in the cgi-bin will grant access to arbitrary files when used in conjunction with the variable 'template'. 'apexec.pl' will parse the output following the 'template' variable within the security context of the http daemon, regardless of the privilege level of the user requesting the string.
Unauthorized remote users may traverse the filesystem by utilizing the common directory traversal double dot '../' technique. Anaconda will perform checks for permissible filename extensions such as .html and .htm, although this mechanism can be bypassed by appending a null byte '%00' followed by the html extension to the desired filename. Therefore, a user may gain access to arbitrary files by performing a malicious URL request.
This attack may lead to the disclosure of sensitive information and may aid in the assistance of other attacks.
Update: It was originally believed that this issue does not affect Anaconda Foundation Directory versions 1.5 and subsequent. New information suggests that newer versions of the script are still vulnerable to this issue.
Affected Products:
- Anaconda Foundation Directory 1.4.0
- Anaconda Foundation Directory 1.5.0
- Anaconda Foundation Directory 1.6.0
- Anaconda Foundation Directory 1.7.0
- Anaconda Foundation Directory 1.9.0
References:
- Anaconda: Foundation Directory Product Homepage
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