Privilege escalation in Trend Micro Apex One Security Agent

1) Link following

EUVDB-ID: #VU65870

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36336

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

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

The vulnerability exists due to insecure link following within the NT Apex One RealTime Scan Service. A local user can create a mount point and delete arbitrary files on the system.

Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code with SYSTEM privileges.

Mitigation

The resolution for this issue is deployed automatically via ActiveUpdate to customers in an updated Spyware pattern 25.27.

Vulnerable software versions

Apex One: 2019 - Patch 6 B10048

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 Patch 2390

External links

http://www.zerodayinitiative.com/advisories/ZDI-22-1033/
http://success.trendmicro.com/dcx/s/solution/000291267?language=en_US

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.