Cryptographic issues in Windows Phone - CVE-2012-2993

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

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. Per http://www.kb.cert.org/vuls/id/389795 "A remote attacker with the ability to pose as a man-in-the-middle may be able to view the login or session data in the corresponding protocol (e.g., SMTP, POP3, etc.)."

How to mitigate CVE-2012-2993

Sources

• http://osvdb.org/85619
• http://www.kb.cert.org/vuls/id/389795
• http://www.securityfocus.com/bid/55569
• http://www.securitytracker.com/id?1027541
• https://exchange.xforce.ibmcloud.com/vulnerabilities/78620