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Universal FTP Denial of Service Vulnerabilities
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Secunia Advisory:
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SA22553
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Release Date:
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2006-11-15
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Last Update:
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2008-12-15
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Popularity:
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4,168 views
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Critical:
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Moderately critical
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Impact:
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DoS
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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: | Universal FTP 1.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Some vulnerabilities have been discovered in Universal FTP, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) An error within the processing of the "STOR" and "PUT" commands can be exploited to crash the FTP service with a runtime error (invalid operation at current state) by sending e.g. two "STOR" commands in a row.
2) Passing a "*" character to e.g. the "MKD" FTP command crashes the FTP service with a runtime error (Path not found).
3) Passing a "|" character to e.g. the "MKD" FTP command crashes the FTP service with a runtime error (Bad file name or number).
4) Passing a couple of spaces or an overly long argument to the "MKD" FTP command crashes the FTP service with a runtime error (File not found).
None of the vulnerabilities requires a user to be authenticated.
5) An error within the processing of the "PORT" command can be exploited to crash the FTP service with a runtime error (invalid procedure call or argument) by passing e.g. "AA" to a "PORT" command.
The vulnerabilities are all confirmed in version 1.0.50 and vulnerability #1 is also confirmed in version 1.0.44. 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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