MailEnable NTLM message buffer overflow

mailenable-ntlm-message-bo (29284) The risk level is classified as HighHigh Risk

Description:

MailEnable is vulnerable to a buffer overflow, caused by improper bounds checking of NTLM type 1 messages. By sending a specially-crafted NTLM type 1 message, a remote attacker could overflow a buffer and execute arbitrary code on the system, if NTLM authentication is enabled.

*CVSS:

Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply Hotfix ME-10015, available from the MailEnable Web site. See References.

References:

  • MailEnable Web site: MailEnable - Hotfix Download Page.
  • MU-200609-01: Multiple Pre-Authentication Vulnerabilities in MailEnable SMTP.
  • BID-20290: MailEnable SMTP NTLM Authentication Multiple Vulnerabilities
  • CVE-2006-5176: Buffer overflow in NTLM authentication in MailEnable Professional 2.0 and Enterprise 2.0 allows remote attackers to execute arbitrary code via the signature field of NTLM Type 1 messages.
  • SA22179: MailEnable Multiple Vulnerabilities
  • VUPEN/ADV-2006-3862: MailEnable Messages Handling Remote Code Execution and DoS Vulnerabilities

Platforms Affected:

  • MailEnable MailEnable 2.0 Professional
  • MailEnable MailEnable 2.0 Enterprise
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2003 Server Web
  • Microsoft Windows 2003 Server Standard
  • Microsoft Windows 2003 Server Enterprise
  • Microsoft Windows NT 4.0 Server

Reported:

Sep 29, 2006

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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