CVE-2021-21552 Missing authorization in Wyse Windows Embedded (WES)
A local low-privilege user can bypass restricted environment controls to perform unauthorized actions on Dell Wyse Windows Embedded systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21552?
CVE-2021-21552 is a medium-severity missing authorization vulnerability in Microsoft Windows 10, published on 21 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell Wyse Windows Embedded System versions WIE10 LTSC 2019 and earlier contain an improper authorization vulnerability. A local authenticated malicious user with low privileges may potentially exploit this vulnerability to bypass the restricted environment and perform unauthorized actions on the affected system.
Weakness: CWE-863
Which versions are affected by CVE-2021-21552?
It affects 1 product.
Products include Microsoft Windows 10.
How do I fix CVE-2021-21552?
No fix has been published for CVE-2021-21552 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-21552 being exploited?
There is no known exploitation of CVE-2021-21552 in the wild and no public exploit code.
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- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-c5g9-x4gm-2c84.