The CryptProtectMemory function in cng.sys (aka the Cryptography Next Generation driver) in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1, when the CRYPTPROTECTMEMORY_SAME_LOGON option is used, does not check an impersonation token's level, which allows local users to bypass intended decryption restrictions by leveraging a service that (1) has a named-pipe planting vulnerability or (2) uses world-readable shared memory for encrypted data, aka "CNG Security Feature Bypass Vulnerability" or MSRC ID 20707.
2015-02-11T03:00:31.480
2025-04-12T10:46:40.837
Deferred
CVSSv2: 1.9 (LOW)
AV:L/AC:M/Au:N/C:P/I:N/A:N
3.4
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | microsoft | windows_7 | - | Yes |
Operating System | microsoft | windows_8 | - | Yes |
Operating System | microsoft | windows_8.1 | - | Yes |
Operating System | microsoft | windows_rt | - | Yes |
Operating System | microsoft | windows_rt_8.1 | - | Yes |
Operating System | microsoft | windows_server_2003 | - | Yes |
Operating System | microsoft | windows_server_2008 | - | Yes |
Operating System | microsoft | windows_server_2008 | r2 | Yes |
Operating System | microsoft | windows_server_2008 | r2 | Yes |
Operating System | microsoft | windows_server_2012 | - | Yes |
Operating System | microsoft | windows_server_2012 | r2 | Yes |
Operating System | microsoft | windows_vista | - | Yes |