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Photo: pocket-lint.com

According to a new Microsoft advisory, smartphone running Windows Phone OS could be susceptible to infiltration when connecting to a rogue Wi-Fi hotspot.

A Rogue Access point:(Wikipedia)

A rogue access point is a wireless access point that has either been installed on a secure company network without explicit authorization from a local network administrator or has been created to allow a hacker to conduct a man-in-the-middle attack. Rogue access points of the first kind can pose a security threat to large organizations with many employees, because anyone with access to the premises can install (maliciously or non-maliciously) an inexpensive wireless router that can potentially allow access to a secure network to unauthorized parties. Rogue access points of the second kind target networks that do not employ mutual authentication (client-server server-client) and may be used in conjunction with a rogue RADIUS server, depending on security configuration of the target network.

The Bulletin released by Microsoft officially describes a known weakness in the Wi-Fi authentication protocol known as PEAP-MS-CHAPv2 (Protected Extensible Authentication Protocol with Microsoft Challenge Handshake Authentication Protocol version 2), used by Windows Phones for WPA2 wireless authentication.

Expolit:

Attacker controlled system could pose as a known Wi-Fi access point, causing the targeted device to automatically attempt to authenticate with the access point, and in turn allowing the attacker to intercept the victim’s encrypted domain credentials. An attacker could then exploit cryptographic weaknesses in the PEAP-MS-CHAPv2 protocol to obtain the victim’s domain credentials. Those credentials could then be re-used to authenticate the attacker to network resources, and the attacker could take any action that the user could take on that network resource.

Currently Microsoft has not received any report of this Vulnerability and informing the users about this vulnerability

Affected Device Operating System
Windows Phone 8
Windows Phone 7.8

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