Vulnerability identifier: #VU52590

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31519

CWE-ID: CWE-266

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
HouseCall for Home Networks
Server applications / SCADA systems

Vendor: Trend Micro

Description

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

The vulnerability exists due to incorrect permissions set on product folders created by the installer, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

HouseCall for Home Networks: 5.3.1045 - 5.3.1179

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External links
http://www.zerodayinitiative.com/advisories/ZDI-21-475/
http://helpcenter.trendmicro.com/en-us/article/TMKA-10310

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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.