#VU59111 Link following in Worry-Free Business Security - CVE-2021-45442

Vulnerability identifier: #VU59111

Vulnerability risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-45442

CWE-ID: CWE-59

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Worry-Free Business Security
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 insecure link following. A local user can create a specially crafted symbolic link and overwrite arbitrary files with SYSTEM privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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

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External links
https://success.trendmicro.com/solution/000289996
https://www.zerodayinitiative.com/advisories/ZDI-22-015/

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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.