CVE-2021-31838 Command injection through environment variable in MVISION EDR
An authenticated administrator can execute arbitrary commands on the EDR client via PowerShell, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31838?
CVE-2021-31838 is a high-severity command injection vulnerability in McAfee,LLC MVISION EDR, published on 29 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A command injection vulnerability in MVISION EDR (MVEDR) prior to 3.4.0 allows an authenticated MVEDR administrator to trigger the EDR client to execute arbitrary commands through PowerShell using the EDR functionality 'execute reaction'.
Weakness: CWE-78
Which versions are affected by CVE-2021-31838?
It affects 1 product.
Products include Mcafee Mvision Edr.
How do I fix CVE-2021-31838?
No fix has been published for CVE-2021-31838 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2021-31838 being exploited?
There is no known exploitation of CVE-2021-31838 in the wild and no public exploit code.
Sources
Also known as GHSA-hg4j-hgh6-fp6f.