Spoofing attack in Microsoft Windows and Windows Server - CVE-2021-36959

Vulnerability identifier: #VU56582

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-36959

CWE-ID: CWE-451

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in Windows Authenticode. A local user can spoof page content.

Microsoft Windows
Windows Server
Solutions Enabler Virtual Appliance
Solutions Enabler
Unisphere 360
Unisphere for PowerMax Virtual Appliance
Unisphere for PowerMax
VASA Provider Standalone

Install updates from vendor's website.

Solutions Enabler Virtual Appliance - addressed in versions 9.1.0.18, 9.2.3.0
Solutions Enabler - addressed in versions 9.1.0.18, 9.2.3.0
Unisphere 360 - addressed in versions 9.1.0.29, 9.2.3.3
Unisphere for PowerMax Virtual Appliance - addressed in versions 9.1.0.31, 9.2.3.4
Unisphere for PowerMax - addressed in versions 9.1.0.31, 9.2.3.4
VASA Provider Standalone - addressed in versions 9.1.0.723, 9.2.3.0

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36959
• https://fortiguard.com/zeroday/FG-VD-21-051

• Spoofing attack in Microsoft Windows Authenticode
• Multiple vulnerabilities in Dell Unisphere for PowerMax, Dell Solutions Enabler, Dell Unisphere 360, Dell VASA