CVE-2021-21518 Code injection in Dell SupportAssist Client
A local attacker can exploit a DLL injection flaw in Dell SupportAssist to execute arbitrary code with SYSTEM privileges.
- 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-2021-21518?
CVE-2021-21518 is a high-severity code injection vulnerability in Dell SupportAssist Client, published on 12 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell SupportAssist Client for Consumer PCs versions 3.7.x, 3.6.x, 3.4.x, 3.3.x, Dell SupportAssist Client for Business PCs versions 2.0.x, 2.1.x, 2.2.x, and Dell SupportAssist Client ProManage 1.x contain a DLL injection vulnerability in the Costura Fody plugin. A local user with low privileges could potentially exploit this vulnerability, leading to the execution of arbitrary executable on the operating system with SYSTEM privileges.
Weakness: CWE-427
Which versions are affected by CVE-2021-21518?
It affects 3 products.
Products include Dell Supportassist Client Promanage, Dell Supportassist for Business Pcs, Dell Supportassist for Home Pcs.
How do I fix CVE-2021-21518?
No fix has been published for CVE-2021-21518 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-21518 being exploited?
There is no known exploitation of CVE-2021-21518 in the wild and no public exploit code.
Sources
Also known as GHSA-m78j-wwfx-36xp.