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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.9 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://kc.mcafee.com/corporate/index?page=content&id=SB10369	Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1104/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:mcafee:mcafee_agent:*:*:*:*:*:windows:*:*

Information

Published : 2021-09-22 07:15

Updated : 2021-09-29 09:51

NVD link : CVE-2021-31847

Mitre link : CVE-2021-31847

JSON object : View

CWE

CWE-347

Improper Verification of Cryptographic Signature

CWE-269

Improper Privilege Management

Products Affected

mcafee

mcafee_agent

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7.8 /10