Zero-day vulnerability in Apex One

Insufficient verification of data authenticity
CVE-2022-40139

Vulnerability details

Advisory: SB2022091318 - Multiple vulnerabilities in Trend Micro Apex One

Vulnerable component: Apex One

CVE-ID: CVE-2022-40139

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Description:

The vulnerability allows a remote user to compromise the affected system.

The vulnerability exists due to improper input validation within the rollback functionality. A remote authenticated user with access to the administrative console can force the agent into downloading unverified rollback components and compromise the affected system.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://appweb.trendmicro.com/SupportNews/NewsDetail.aspx?id=4553

https://success.trendmicro.com/jp/solution/000291471


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.