|
WS_FTP Server Denial of Service Vulnerability
|
|
Secunia Advisory:
|
SA10452
|
|
|
Release Date:
|
2003-12-17
|
|
Last Update:
|
2004-11-16
|
|
Popularity:
|
7,786 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
DoS
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | WS_FTP Server 4.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
Description:
Dr_insane has reported a vulnerability in WS_FTP Server, which can be exploited by malicious users to cause a DoS (Denial of Service).
Performance on a system running a vulnerable version of WS_FTP Server can be degraded by consuming about 98% CPU resources. This is possible by supplying multiple dots (".") as argument to the "CWD" command followed by an attempt to create an arbitrary directory with the "MKD" command.
The vulnerability has been confirmed in version 4.02. Other versions may also be affected.
Solution:
Upgrade to version 5.0.
http://www.ipswitch.com/purchase/products/svc_agreements.html
Provided and/or discovered by:
Dr_insane
Changelog:
2004-11-16: Updated "Solution" section.
Original Advisory:
http://members.lycos.co.uk/r34ct/main/WS-ftp_4.0.2/WSFTP.txt
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
