Vulnerability CVE-2015-0002
Published: 2015-01-13   Modified: 2015-01-14

Description:
The AhcVerifyAdminContext function in ahcache.sys in the Application Compatibility component in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not verify that an impersonation token is associated with an administrative account, which allows local users to gain privileges by running AppCompatCache.exe with a crafted DLL file, aka MSRC ID 20544 or "Microsoft Application Compatibility Infrastructure Elevation of Privilege Vulnerability."

See advisories in our WLB2 database:
Topic
Author
Date
High
Microsoft Windows NtApphelpCacheControl Improper Authorization Check
sinn3r
18.01.2015

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Microsoft -> Windows 7 
Microsoft -> Windows 8 
Microsoft -> Windows 8.1 
Microsoft -> Windows rt 
Microsoft -> Windows rt 8.1 
Microsoft -> Windows server 2008 
Microsoft -> Windows server 2012 

 References:
http://secunia.com/advisories/61277
http://twitter.com/sambowne/statuses/550384131683520512
http://www.securityfocus.com/bid/71972
http://www.zdnet.com/article/google-discloses-unpatched-windows-vulnerability/
https://code.google.com/p/google-security-research/issues/detail?id=118
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-001
https://exchange.xforce.ibmcloud.com/vulnerabilities/99523
https://exchange.xforce.ibmcloud.com/vulnerabilities/99524
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