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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> FTP >> wu-ftpd ABOR Privilege Escalation


Vulnerability Assessment Details

wu-ftpd ABOR Privilege Escalation

Vulnerability Assessment Summary
Checks the banner of the remote wu-ftpd server

Detailed Explanation for this Vulnerability Assessment

The remote Wu-FTPd server seems to be vulnerable to a remote privilege
escalation.

This version contains a flaw that may permit a malicious user to gain
access to unauthorized rights.

Specifically, there is a flaw in the way that the server handles
an ABOR command after a data connection has been closed. The
flaw is within the dologout() function and proper exploitation
will give the remote attacker the ability to execute arbitrary
code as the 'root' user.

This flaw may lead to a loss of confidentiality and/or integrity.

*** Nessus solely relied on the banner of the remote server
*** to issue this warning, so it may be a false positive.


Solution : Upgrade to Wu-FTPd 2.4.2 or newer

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2004 David Maciejak

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