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Tcl Web Server Directory Traversal and Cross Site Scripting
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Secunia Advisory:
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SA9849
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Release Date:
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2003-09-26
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Popularity:
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5,208 views
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
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: | Tcl Web Server 3.x
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Description:
Multiple vulnerabilities have been reported in Tcl Web Server, which can be exploited by malicious people to see the contents of directories and conduct Cross Site Scripting.
1) Tcl Web Server fails to verify input properly when sorting a directory listing. This can be exploited by supplying an arbitrary directory to be sorted.
Example:
?pattern=/absolute/path/*&sort=name
2) Multiple modules (Status, Debug, Mail, Admin) have been reported to be vulnerable to Cross Site Scripting. This can be exploited by including arbitrary HTML and script code in various parameters.
Examples:
/debug/echo?name=<evil_script>
/debug/dbg?host=<evil_script>
The vulnerabilities have been reported in version 3.4.2. However, prior versions may also be affected.
Solution:
Disable the affected modules, or use a firewall or proxy with URL filtering capabilities to filter malicious requests.
Provided and/or discovered by:
Phuong Nguyen
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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.
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