Microsoft Windows Phone 7 domain name spoofing

microsoft-winphone7-domainname-spoofing (78620) The risk level is classified as MediumMedium Risk

Description:

Microsoft Windows Phone 7 could allow a remote attacker to conduct spoofing attacks, caused by improper validation of the domain name of the X.509 certificate Common Name (CN) field. An attacker could exploit this vulnerability using man-in-the-middle techniques to spoof an SSL server for POP3, IMAP, or SMTP protocol communication.

*CVSS:

Base Score: 5.4
  Access Vector: Network
  Access Complexity: High
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 4.6
  Exploitability: Unproven
  Remediation Level: Unavailable
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

No remedy available as of October 1, 2014.

References:

  • Microsoft Windows Phone Web site: Windows Phone.
  • BID-55569: Microsoft Windows Phone 7 SSL Certificate 'Common Name' Validation Security Bypass Vulnerability
  • CVE-2012-2993: Microsoft Windows Phone 7 does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL server for the (1) POP3, (2) IMAP, or (3) SMTP protocol via an arbitrary valid certificate.
  • US-CERT VU#389795: Windows Phone 7 does not check certificate Common Names when sending or receiving emails over SSL.

Platforms Affected:

  • Microsoft Windows Phone 7

Reported:

Sep 10, 2012

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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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