#VU46136 Improper access control in Apex One - CVE-2020-24557

Vulnerability identifier: #VU46136

Vulnerability risk: Low

CVSSv4.0: 8.5 [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:A/U:Clear]

CVE-ID: CVE-2020-24557

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Apex One
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Trend Micro

Description

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within the ApexOne Security Agent. A local user can manipulate a particular product folder to disable the security temporarily and gain elevated privileges on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apex One: 2019

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External links
https://www.zerodayinitiative.com/advisories/ZDI-20-1094/
https://success.trendmicro.com/solution/000263632
https://appweb.trendmicro.com/SupportNews/NewsDetail.aspx?id=4126

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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?

Yes. This vulnerability is being exploited in the wild.