SB2016071804 - Windows File System Security Feature Bypass Vulnerability

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Main Vulnerability Database SB2016071804

SB2016071804 - Windows File System Security Feature Bypass Vulnerability

Published: July 18, 2016

Security Bulletin ID SB2016071804
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Windows file system security feature bypass (CVE-ID: CVE-2016-3258)

The vulnerability allows a local attacker to bypass certain security restrictions.

The vulnerability exists in windows kernel due to an error, which can be used to bypass file path-based checks from a low integrity application using time of check time of use (TOCTOU) issues. A local attacker can potentially modify files outside of a low integrity level application.

Successful exploitation of this vulnerability requires usage of another vulnerability, which allows to compromise the sandbox process from a low integrity application.


Remediation

Install update from vendor's website.

References