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Insecure Library Loading
Moderately critical

MailEnable NTLM Authentication Denial of Service

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Release Date:  2007-02-14    Last Update:  2007-02-16    Views:  13,870

Secunia Advisory SA24139

Where:

From remote

Impact:

DoS

Solution Status:

Unpatched

CVE Reference(s):

Description


mu-b has discovered a vulnerability in MailEnable, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within "NTLM_UnPack_Type3()" (MENTLM.DLL) when processing NTLM authentication data. This can be exploited e.g. to crash the IMAP or POP service via a specially crafted series of commands and data.

The vulnerability is confirmed in MailEnable Professional versions 2.35, 2.351, and 2.37. Other versions may also be affected.


Solution:
Restrict access to MailEnable's services.

Provided and/or discovered by:
mu-b

Original Advisory:
Full-Disclosure:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-February/052427.html
http://lists.grok.org.uk/pipermail/full-disclosure/2007-February/052439.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: MailEnable NTLM Authentication Denial of Service

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