33545 : MERCUR Messaging/Mailserver IMAP NTLM Authentication NTLMSSP Argument Remote Overflow
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Disclosure Date


A remote overflow exists in Mercur Messaging/Mailserver. The IMAP service fails to provide proper boundary checking when processing NTLM data resulting in a stack-based overflow. With a specially crafted NTLM authentication request provided with a long NTLMSSP argument, an attacker can cause arbitrary code execution resulting in a loss of integrity.


Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public, Exploit Commercial


Currently, there are no known upgrades, patches, or workarounds available to correct this issue.


Atrium Software
MERCUR Mailserver
4.3 SP3
Messaging Server
2005 SP4


Tools & Filters



  • mu-b - mu-bdigit-labs.org -

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2007-03-23 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2


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