High severity · published Sep 22, 2021
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…
7.8
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
Agent · Mcafee
before 5.7.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31847
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31847
Broken Link
https://kc.mcafee.com/corporate/index?page=content&id=SB10369
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1104/
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