Vulnerability CVE-2015-2553
Published: 2015-10-13   Modified: 2015-10-14

Description:
The kernel in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 mishandles junctions during mountpoint creation, which makes it easier for local users to gain privileges by leveraging certain sandbox access, aka "Windows Mount Point Elevation of Privilege Vulnerability."

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Windows 10 Sandboxed Mount Reparse Point Creation Mitigation Bypass (MS15-111)
Google Security ...
16.10.2015

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 10 
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 
Microsoft -> Windows vista 

 References:
http://packetstormsecurity.com/files/133971/Windows-Sandboxed-Mount-Reparse-Point-Creation-Mitigation-Bypass.html
http://www.securitytracker.com/id/1033805
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-111
https://www.exploit-db.com/exploits/38474/
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