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PHP Upload Tool File Upload And Directory Traversal
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Secunia Advisory:
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SA22973
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Release Date:
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2006-11-17
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Last Update:
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2007-03-06
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Popularity:
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8,851 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
System access
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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: | PHP Upload Tool 1.x
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| CVE reference: | CVE-2006-7133
CVE-2006-7134
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Description:
Some vulnerabilities have been discovered in PHP Upload Tool, which can be exploited by malicious users to gain system access or by malicious people to expose sensitive information.
1) The bin/main_user.php script fails to validate the extension of an uploaded file. This can be exploited to upload files with arbitrary extensions (e.g. ".php") and execute arbitrary PHP code on the server.
Successful exploitation requires valid user credentials.
2) Input passed to the "filename" parameter in bin/download.php is not properly sanitised before being used to download files.
Successful exploitation allows for downloading of arbitrary files on the system, e.g. "/etc/passwd" or "conf/users.conf" (the product's usernames and password hashes).
The vulnerabilities are confirmed in version 1.0. Other versions may also be affected.
Solution:
Edit the source code to ensure that input is properly verified and sanitised.
Restrict access to the application, e.g. with an ".htaccess" file.
Provided and/or discovered by:
Craig Heffner and an anonymous person
Changelog:
2007-03-06: Added CVE reference.
Original Advisory:
2) http://www.craigheffner.com/security/exploits/upload_tool_php.txt
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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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