#VU58814 Link following in Trend Micro Security (Consumer) - CVE-2021-44023

Vulnerability identifier: #VU58814

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-44023

CWE-ID: CWE-59

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Trend Micro Security (Consumer)
Client/Desktop applications / Software for system administration

Vendor: Trend Micro

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a link following issue within the PC Health Checkup feature. A local user can force the application to create symbolic links and overwrite arbitrary files on the system, resulting in a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Trend Micro Security (Consumer): 17 - 17.6

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External links
https://helpcenter.trendmicro.com/en-us/article/TMKA-10867

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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.