PT-2015-2324 · Microsoft · Windows 10+8

Published 2015-10-13 · Updated 2019-05-15 · CVE-2015-2553

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Windows Vista SP2 Microsoft Windows Server 2008 SP2 and R2 SP1 Microsoft Windows 7 SP1 Microsoft Windows 8 Microsoft Windows 8.1 Microsoft Windows Server 2012 Gold and R2 Microsoft Windows RT Gold and 8.1 Microsoft Windows 10

Description The issue arises from the kernel's mishandling of junctions during mountpoint creation, making it easier for local users to gain privileges by leveraging certain sandbox access. This is due to insufficient input validation, which can be exploited by a local attacker to manipulate the sandbox mechanism and potentially elevate their privileges. An attacker who successfully exploits this issue could run arbitrary code in the security context of the user running a compromised application.

Recommendations For Microsoft Windows Vista SP2, update to a newer version that addresses this issue. For Microsoft Windows Server 2008 SP2 and R2 SP1, update to a newer version that addresses this issue. For Microsoft Windows 7 SP1, update to a newer version that addresses this issue. For Microsoft Windows 8, update to a newer version that addresses this issue. For Microsoft Windows 8.1, update to a newer version that addresses this issue. For Microsoft Windows Server 2012 Gold and R2, update to a newer version that addresses this issue. For Microsoft Windows RT Gold and 8.1, update to a newer version that addresses this issue. For Microsoft Windows 10, update to a newer version that addresses this issue. As a temporary workaround, consider restricting access to the sandbox mechanism to minimize the risk of exploitation.

Exploit

Fix

RCE

Weakness Enumeration

CWE-264

CWE-20

Related Identifiers

BDU:2015-11689

CVE-2015-2553

Affected Products

Windows

Windows 10

Windows 7

Windows 8

Windows 8.1

Windows Rt

Windows Server 2008

Windows Server 2012

Windows Vista

References · 9

• 🔥 https://exploit-db.com/exploits/38474 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2553 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-111 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-11689 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2015-2553 · Security Note
• http://securitytracker.com/id/1033805 · Note
• http://technet.microsoft.com/security/bulletin/MS15-111 · Note
• http://technet.microsoft.com/security/bulletin/ms15-111 · Note
• http://packetstormsecurity.com/files/133971/Windows-Sandboxed-Mount-Reparse-Point-Creation-Mitigation-Bypass.html · Note