Privilege escalation in Mcafee Agent
CVE-2021-31847
Improper access control vulnerability in the repair process for McAfee Agent for Windows prior to 5.7.4 could allow a local attacker to perform a DLL preloading attack using unsigned DLLs. This would result in elevation of privileges and the ability to execute arbitrary code as the system user, through not correctly protecting a temporary directory used in the repair process and not checking the DLL signature.
Vulnerability class: Privilege Escalation
EPSS: 0.004 (32.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Mcafee Agent
- Mcafee,llc Mcafee Agent For Windows — versions unspecified
Weakness classification (CWE)
References
- trellixpsirt@trellix.com (x_refsource_CONFIRM, Broken Link)
- trellixpsirt@trellix.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-31847?
- CVE-2021-31847 is a high-severity vulnerability in Mcafee Agent, classified under Improper Privilege Management. CVSS score: 8.2/10. Published 2021-09-22.
- How severe is CVE-2021-31847?
- High severity. CVSS v3 base score is 8.2 out of 10.