CVE-2021-31840 DLL preload vulnerability in McAfee Agent for Windows
An authenticated local attacker can exploit a DLL preloading flaw in McAfee Agent to gain elevated permissions and execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-31840?
CVE-2021-31840 is a high-severity vulnerability in McAfee,LLC McAfee Agent for Windows, published on 10 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability in the preloading mechanism of specific dynamic link libraries in McAfee Agent for Windows prior to 5.7.3 could allow an authenticated, local attacker to perform a DLL preloading attack with unsigned DLLs. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. This would result in the user gaining elevated permissions and being able to execute arbitrary code.
Weakness: CWE-427
Which versions are affected by CVE-2021-31840?
It affects 1 product.
Products include Mcafee Mcafee Agent.
How do I fix CVE-2021-31840?
No fix has been published for CVE-2021-31840 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-31840 being exploited?
There is no known exploitation of CVE-2021-31840 in the wild and no public exploit code.
Other vulnerabilities in McAfee,LLC McAfee Agent for Windows
- CVE-2021-31841 DLL side loading vulnerability in MA for Windows
- CVE-2020-7314 Privilege Escalation vulnerability in McAfee DXL for Mac
- CVE-2020-7311 Privilege Escalation vulnerability in MA for Windows
- CVE-2020-7312 DLL Search Order Hijacking in MA for Windows
- CVE-2020-7315 DLL Injection vulnerability in MA for Windows
Sources
Also known as GHSA-8r98-33h6-f6hq.