#VU29033 Permissions, Privileges, and Access Controls in McAfee VirusScan - CVE-2020-7280

Vulnerability identifier: #VU29033

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-7280

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
McAfee VirusScan
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: McAfee

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions within the processing of log files during daily DAT updates. A local user can create a junction and overwrite the contents of a chosen file, leading to arbitrary code execution with SYSTEM privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

McAfee VirusScan: 8.8

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External links
https://kc.mcafee.com/corporate/index?page=content&id=SB10302
https://www.zerodayinitiative.com/advisories/ZDI-20-702/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.