Rule:

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Sid:
1921

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Summary:
This event is generated when an attempt is made to exploit a
vulnerability associated with the GlFtpd ZIPCHK command that may permit
the execution of arbitrary commands with the privileges of the process
running GlFtpd.

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Impact:
Remote access.  A successful attack may permit the execution of
arbitrary commands with the privileges of GlFtpd on the vulnerable
server.

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Detailed Information:
This event is generated when an attempt is made to exploit a
vulnerability associated with the ZIPCHK command of the GlFtpd server. 
GlFtpd provides FTP software for UNIX hosts.  The ZIPCHK command
supplies integrity checking of a downloaded ZIP file.  The file name
supplied with the ZIPCHK is not scrutinized to determine if it is a
valid name.  An attacker can supply a UNIX command with the character
";" in the argument to the ZIPCHK command, causing the execution of the
command with the privileges of the process running GlFtpd.

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Affected Systems:
	GlFtpd 1.17.2. 

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Attack Scenarios:
An attacker can remotely execute arbitrary commands on the vulnerable
server.

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Ease of Attack:
Simple. Exploits code exists.

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False Positives:
None Known.

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False Negatives:
None Known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

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Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <bmc@sourcefire.com> 
Nigel Houghton <nigel.houghton@sourcefire.com>
Judy Novak <judy.novak@sourcefire.com>

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Additional References:

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