Vulnerability Details : CVE-2021-31841
A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.
Vulnerability category: File inclusionExecute code
Products affected by CVE-2021-31841
- cpe:2.3:a:mcafee:mcafee_agent:*:*:*:*:*:windows:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-31841
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 3 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-31841
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
7.3
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.3
|
5.9
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
|
8.2
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
McAfee (DEFUNCT) | |
|
8.2
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
Trellix |
CWE ids for CVE-2021-31841
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by:
- nvd@nist.gov (Primary)
- psirt@mcafee.com (Primary)
- trellixpsirt@trellix.com (Secondary)
-
The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.Assigned by:
- nvd@nist.gov (Primary)
- psirt@mcafee.com (Primary)
- trellixpsirt@trellix.com (Secondary)
References for CVE-2021-31841
-
https://kc.mcafee.com/corporate/index?page=content&id=SB10369
Security Bulletin - McAfee Agent for Windows update fixes three vulnerabilities (CVE-2021-31836, CVE-2021-31841, CVE-2021-31847)Broken Link
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