#VU61722 UNIX symbolic link following in Antivirus for Mac


Published: 2022-03-30 | Updated: 2022-04-02

Vulnerability identifier: #VU61722

Vulnerability 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-2022-27883

CWE-ID: CWE-61

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 a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Antivirus for Mac: 2021 (v11) - 2021 v11 Hotfix


External links
http://helpcenter.trendmicro.com/en-us/article/TMKA-10978
http://www.zerodayinitiative.com/advisories/ZDI-22-546/


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.


Latest bulletins with this vulnerability