#VU16645 Information disclosure in Windows and Windows Server - CVE-2019-0636
Published: December 19, 2018 / Updated: February 13, 2019
Vulnerability identifier: #VU16645
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-0636
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local attacker to read contents of arbitrary file on the target system.
The vulnerability exists due to the MsiAdvertiseProduct function enables the Windows installer to copy any file on the system and make it readable. A local unprivileged user can abuse Windows Installer functionality to make a copy of arbitrary file on local system and read its contents.
Given that Windows installer is executed with SYSTEM privileges and in case shadow copes are enabled, an attacker will be able to read contents of SAM file and SYSTEM hive.
Remediation
Install update from vendor's website.