PT-2021-19717 · Trend Micro · Trend Micro Housecall For Home Networks

Xavier Danest · Published 2021-09-24 · Updated 2021-10-02 · CVE-2021-32466

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Trend Micro HouseCall for Home Networks versions 5.3.1225 and below

Description: An uncontrolled search path element privilege escalation issue could allow an attacker to escalate privileges by placing a custom crafted file in a specific directory to load a malicious library. The attacker must first obtain the ability to execute low-privileged code on the target system to exploit this issue.

Recommendations: For versions 5.3.1225 and below, update to a version above 5.3.1225 to resolve the issue. As a temporary workaround, consider restricting access to the specific directory where the custom crafted file could be placed to minimize the risk of exploitation.

Fix

Uncontrolled Search Path Element

Weakness Enumeration

CWE-427

Related Identifiers

CVE-2021-32466

ZDI-21-1112

Affected Products

Trend Micro Housecall For Home Networks

References · 7

• https://zerodayinitiative.com/advisories/ZDI-21-1112 · Security Note
• https://helpcenter.trendmicro.com/en-us/article/tmka-10626 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32466 · Security Note
• https://osv.dev/vulnerability/CVE-2021-32466 · Vendor Advisory
• https://helpcenter.trendmicro.com/ja-jp/article/TMKA-10621 · Vendor Advisory
• https://t.me/cvenotify/21620 · Telegram Post
• https://t.me/cibsecurity/29621 · Telegram Post