#VU51984 Security restrictions bypass in Antivirus for Mac - CVE-2021-28648

Vulnerability identifier: #VU51984

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-2021-28648

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Antivirus for Mac
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Trend Micro

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, which leads to security restrictions bypass and privilege escalation. A local user can run  a specially crafted program on the system and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Antivirus for Mac: before 2020

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External links
https://helpcenter.trendmicro.com/en-us/article/TMKA-10293

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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.