Improper access control in Windows and Windows Server - CVE-2018-8584

 

Improper access control in Windows and Windows Server - CVE-2018-8584

Published: October 24, 2018 / Updated: November 14, 2018


Vulnerability identifier: #VU15487
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-8584
CWE-ID: CWE-284
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server

Detailed vulnerability description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to improper access control в Data Sharing Service (dssvc.dll). A local attacker can abuse a new Windows service not checking permissions again, delete OS files or DLLs, replace them with malicious versions and crash the operating system.


How to mitigate CVE-2018-8584

Install updates from vendor's website.

Sources