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Ability Server FTP Commands Buffer Overflow Vulnerability
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Secunia Advisory:
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SA12941
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Release Date:
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2004-10-25
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Last Update:
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2005-02-22
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Popularity:
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6,878 views
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Critical:
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Moderately critical
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Impact:
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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: | Ability Server 2.x
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| CVE reference: | CVE-2004-1626
CVE-2004-1627
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Description:
muts has discovered a vulnerability in Ability Server, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the handling of the FTP "STOR" and "APPE" commands. This can be exploited to cause a buffer overflow by supplying an overly long argument.
Successful exploitation may allow execution of arbitrary code.
The vulnerability has been confirmed on version 2.34 and has also been reported in version 2.25 and 2.32. Other versions may also be affected.
Solution:
Grant only trusted users access to the FTP server.
Provided and/or discovered by:
Originally discovered by:
muts
Reported in "APPE" FTP command by:
PnK::DCN3T
Changelog:
2004-12-09: Added information about "APPE" FTP command also being affected.
2004-12-23: Added link to US-CERT vulnerability note.
2005-02-22: Added CVE references.
Other References:
US-CERT VU#857846:
http://www.kb.cert.org/vuls/id/857846
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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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