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Mabry Software HTTPServer/X Directory Traversal Vulnerability
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Secunia Advisory:
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SA9256
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Release Date:
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2003-07-14
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Popularity:
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5,177 views
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Critical:
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Moderately critical
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Impact:
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Exposure of system information
Exposure of sensitive information
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | HTTPServer/X 1.x
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Description:
A vulnerability has been reported in Mabry Software HTTPServer/X, which can be exploited by malicious people to gain access to arbitrary files on a vulnerable web server.
The vulnerability is caused due to missing input validation. The HTTPServer/X component ("HttpSrvX.dll" / "HttpSrvX.ocx") doesn't filter the character sequence "../" in a HTTP request, which makes it possible for a malicious person to traverse out of the web root.
Example:
http://[victim]/../../../existing_file
Secunia has confirmed the vulnerability in the latest version (1.00.020). However, prior versions may also be affected.
NOTE: Any web server based on the vulnerable component may be affected.
Solution:
Install the web root on a separate drive letter to minimize the impact of traversals. Filter malicious characters in a HTTP proxy or firewall with URL filtering capabilities.
Provided and/or discovered by:
dr_insane
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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