Privilege escalation in McAfee VirusScan Enterprise

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU29033

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7280

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

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

External links

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

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.