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Serv-U File Renaming Vulnerabilities and STOU Denial of Service
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Secunia Advisory:
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SA32150
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Release Date:
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2008-10-06
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Last Update:
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2008-10-10
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Popularity:
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3,043 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Serv-U File Server 7.x
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Secunia CVSS-2 Score:
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Available in Secunia business solutions 
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Some vulnerabilities have been reported in Serv-U, which can be exploited by malicious users to cause a DoS (Denial of Service) or compromise a vulnerable system.
1) An error in the handling of the "STOU" FTP command can be exploited to exhaust available CPU resources via a specially crafted argument (e.g. "CON:1").
2) An input validation error in the FTP service when renaming files can be exploited to overwrite or create arbitrary files with user-supplied content via directory traversal attacks.
3) An input validation error in the FTP service when renaming files with a certain destination setting can be exploited to move the files to the Windows directory.
Vulnerabilities #1 and #2 are confirmed in version 7.3.0.0 and vulnerability #3 is reported in versions prior to 7.3.0.1. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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