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Cisco Security

IPSwitch WS_FTP Logging Server Remote DoS

 
Signature ID: 17781/0
Original Release:S405
Release:S405 (download)
Original Release Date:2009 May 29
Latest Release Date:2009 May 29
Default Enabled:False
Default Retired:True
CVE:CVE-2007-3823
Alarm Severity:Medium
Fidelity:85 

Description

WS FTP uses a binary protocol to speak to the logging daemon, and each transmission begins with a two byte header "0xab 0xaa". If using a long string of characters to mangle the remaining portions of the message, a pointer operation fails. This crashes the process. By flipping two bytes immediately after the two primary header bytes, you are also able to control where the dereferencing address is at the time of the crash. However, this doesnot appear to allow code execution on the remote host as the address referenced is too far away from any user supplied input.

Recommended Filter

There are no suggested filters.

Benign Triggers

There are no known benign triggers.

IntelliShield Alerts

IntelliShield ID Headline VersionCVSS ScoreLast Published
13754Ipswitch WS_FTP Logging Server Remote Denial of Service Vulnerability12.3/1.82007 July 16 15:52 GMT

Download

To download this and other IPS update files, please go to Cisco Secure Software Download.

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