Permissions, Privileges, and Access Controls in Microsoft Windows and Windows Server - CVE-2021-41347

Vulnerability identifier: #VU57289

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-41347

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Windows AppX Deployment Service, which leads to security restrictions bypass and privilege escalation.

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-2021-41347
• https://www.zerodayinitiative.com/advisories/ZDI-21-1161/

• Privilege escalation in Microsoft Windows AppX Deployment Service
• Multiple vulnerabilities in Dell Unisphere for PowerMax, Dell Solutions Enabler, Dell Unisphere 360, Dell VASA