TYPSoft FTP 'RETR' and 'STOR' Denial of Service Vulnerability

BID:3409

Info

TYPSoft FTP 'RETR' and 'STOR' Denial of Service Vulnerability

Bugtraq ID: 3409
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2001-1156
Remote: Yes
Local: No
Published: Oct 09 2001 12:00AM
Updated: Jul 11 2009 09:06AM
Credit: Discovered and posted to Bugtraq by J. Wagner <[email protected]> on Oct 9, 2001.
Vulnerable: TYPSoft TYPSoft FTP Server 0.95
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows ME
- Microsoft Windows NT 4.0
Not Vulnerable: TYPSoft TYPSoft FTP Server 0.96
- Microsoft Windows 2000 Professional SP2
 - Microsoft Windows 2000 Professional SP1
 - Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows ME
- Microsoft Windows NT Workstation 4.0 SP6a
 - Microsoft Windows NT Workstation 4.0 SP6
 - Microsoft Windows NT Workstation 4.0 SP5
 - Microsoft Windows NT Workstation 4.0 SP4
 - Microsoft Windows NT Workstation 4.0 SP3
 - Microsoft Windows NT Workstation 4.0 SP2
 - Microsoft Windows NT Workstation 4.0 SP1
 - Microsoft Windows NT Workstation 4.0

Discussion

TYPSoft FTP 'RETR' and 'STOR' Denial of Service Vulnerability

TYPSoft FTP server is subject to denial of service attacks.

A malicious argument string submitted using either 'RETR' or 'STOR' commands to a host running TYPSoft FTP server, will result in the service terminating.

A restart of the server is required in order to gain normal functionality.

Exploit / POC

TYPSoft FTP 'RETR' and 'STOR' Denial of Service Vulnerability

J. Wagner &lt;[email protected]&gt; has provided the following exploit:

Solution / Fix

TYPSoft FTP 'RETR' and 'STOR' Denial of Service Vulnerability

Solution:
This issue has been addressed in TYPSoft FTP Server 0.96 and up. Currently, the latest version is 0.97.5:


TYPSoft TYPSoft FTP Server 0.95

References

TYPSoft FTP 'RETR' and 'STOR' Denial of Service Vulnerability

References:

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