CVE-2021-21532 Missing authorization in Wyse Proprietary OS (ThinOS)
Attackers can redirect ThinOS clients to malicious servers to modify device configurations or certificates due to improper validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21532?
CVE-2021-21532 is a medium-severity missing authorization vulnerability in Dell Wyse Proprietary OS (ThinOS), published on 2 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell Wyse ThinOS 8.6 MR9 contains remediation for an improper management server validation vulnerability that could be potentially exploited to redirect a client to an attacker-controlled management server, thus allowing the attacker to change the device configuration or certificate file.
Which versions are affected by CVE-2021-21532?
It affects 1 product.
Products include Dell Wyse Thinos.
How do I fix CVE-2021-21532?
No fix has been published for CVE-2021-21532 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-2021-21532 being exploited?
There is no known exploitation of CVE-2021-21532 in the wild and no public exploit code.
Other vulnerabilities in Dell Wyse Proprietary OS (ThinOS)
- CVE-2020-29491 Misconfiguration in Wyse Proprietary OS (ThinOS)
- CVE-2020-29492 Misconfiguration in Wyse Proprietary OS (ThinOS)
- CVE-2024-42427 Command injection in Wyse Proprietary OS (Modern ThinOS)
- CVE-2021-21597 Information disclosure in Wyse ThinOS
- CVE-2022-34402 Denial of service in Wyse Proprietary OS (Modern ThinOS)
Sources
Also known as GHSA-3gp6-mhp9-qvmh.