[NT] Bounce Vulnerability in SpoonFTP

From: support@securiteam.com
Date: 01/23/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Wed, 23 Jan 2002 22:16:04 +0100 (CET)

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  Bounce Vulnerability in SpoonFTP
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SUMMARY

 <http://www.pi-soft.com/spoonftp/index.shtml> SpoonFTP is an FTP server
that lets you transfer files using the File Transfer Protocol (FTP). A
security vulnerability in the product allows attackers to bounce
connections thought the FTP server, thus allowing them to attack
third-party hosts.

DETAILS

Vulnerable systems:
SpoonFTP version 1.1.0.0 and prior

Immune systems:
SpoonFTP version 1.1.0.1

The FTP server suffers from a security vulnerability that allows attackers
to launch an FTP bounce attack, even against ports lower than 1024
(normally they are restricted from access).

Vendor response:
Pi-Soft have created a new version that among other things fix this
vulnerability.

ADDITIONAL INFORMATION

The information has been provided by <mailto:arne.vidstrom@NTSECURITY.NU>
Arne Vidstrom.

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