Privilege escalation in Trend Micro HouseCall for Home Networks

1) Unquoted Search Path or Element

EUVDB-ID: #VU56635

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32466

CWE-ID: CWE-428 - Unquoted Search Path or Element

Exploit availability: No

Description

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

The vulnerability exists due to an uncontrolled search path element. A local user can place a custom crafted file in a specific directory to load a malicious library and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

HouseCall for Home Networks: 5.0.1051 - 5.3.1270

External links

http://helpcenter.trendmicro.com/en-us/article/TMKA-10626

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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.