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Home >> Browse Vulnerability Assessment Database >> Gain a shell remotely >> MailEnable IMAP Overflow and SMTP Vulnerabilities


Vulnerability Assessment Details

MailEnable IMAP Overflow and SMTP Vulnerabilities

Vulnerability Assessment Summary
Checks for IMAP overflow and SMTP DoS vulnerabilities in MailEnable

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote mail server is affected by multiple issues.

Description :

The remote host is running a version of MailEnable Professional or
MailEnable Enterprise Edition that is prone to the following
vulnerabilities:

- An IMAP Authenticate Request Buffer Overflow Vulnerability
Sending an AUTHENTICATE or LOGIN command with an argument
of 1016 characters or more overflows a stack-based buffer.
A possible hacker can leverage this flaw to overwrite sensitive
program control variables and thereby control execution
flow of the server process.

- An SMTP Malformed EHLO Request Denial Of Service Vulnerability
The SMTP service does not properly handle malformed EHLO
commands and may crash when it encounters an argument
containing the character 0x99. A remote attacker could use
this flaw to crash the SMTP service, thereby denying service
to legitimate users.

See also :

http://archives.neohapsis.com/archives/bugtraq/2005-04/0070.html
http://archives.neohapsis.com/archives/fulldisclosure/2005-04/0078.html

Solution :

Apply the IMAP and SMTP hotfix from 4th April 2005 located at
http://www.mailenable.com/hotfix/. [Note that this does not fix the
overflow involving an oversize LOGIN command.]

Network Security Threat Level:

Critical / CVSS Base Score : 10
(AV:R/AC:L/Au:NR/C:C/A:C/I:C/B:N)

Networks Security ID: 12994, 12995, 13040

Vulnerability Assessment Copyright: This script is Copyright (C) 2005-2007 Tenable Network Security

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