CVE Identifier(s): CVE-2020-28572, CVE-2020-28573, CVE-2020-28576, CVE-2020-28577, CVE-2020-28582, CVE-2020-28583
CVSS 3.0 Score(s): 5.3 - 5.7
Severity Rating(s): Medium
Trend Micro has released new patches for Trend Micro Apex One (On Premise) and Apex One as a Service (SaaS). These patches resolve multiple vulnerabilities related to local privilege escalation and improper access control information disclosure.
|Apex One||On Premise (2019)||Windows||English|
Trend Micro has released the following solutions to address the issue:
|CP 8422 *||Readme||Windows||Now Available|
| Monthly Patch|
*Please note that one of the vulnerabilities were first patched in a previous CP; however, it is highly suggested customers apply the latest CP to ensure maximum coverage.
These are the minimum recommended version(s) of the patches and/or builds required to address the issue. Trend Micro highly encourages customers to obtain the latest version of the product if there is a newer one available than the one listed in this bulletin.
Customers are encouraged to visit Trend Micro’s Download Center to obtain prerequisite software (such as Service Packs) before applying any of the solutions above.
CVE-2020-28572: Local Privilege Escalation Vulnerability
CVSSv3: 5.7: AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
A vulnerability in Trend Micro Apex One could allow an unprivileged user to abuse the product installer to reinstall the agent with additional malicious code in the context of a higher privilege.
CVE-2020-28573, CVE-2020-28576, CVE-2020-28577, CVE-2020-28582, CVE-2020-28583: Improper Access Control Information Disclosure Vulnerabilities
CVSSv3: 5.3: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Improper access control information disclosure vulnerabilities in Trend Micro Apex One could allow an unauthenticated user to connect to the product server and reveal information such as the total agents managed by the server, version/build information and server hostname.
Exploiting these type of vulnerabilities generally require that an attacker has access (physical or remote) to a vulnerable machine. In addition to timely application of patches and updated solutions, customers are also advised to review remote access to critical systems and ensure policies and perimeter security is up-to-date.
Newer versions of the operating system (e.g. Windows 10) may protect against some vulnerabilities such as hard link privilege escalations.
However, even though an exploit may require several specific conditions to be met, Trend Micro strongly encourages customers to update to the latest builds as soon as possible.
Trend Micro would like to thank the following individuals for responsibly disclosing these issues and working with Trend Micro to help protect our customers:
- Lasse Trolle Borup of Danish Cyber Defence
- filenotfound working with Trend Micro's Zero Day Initiative
- Michael DePlante of Trend Micro's Zero Day Initiative
- Elias Martinez working with Trend Micro's Zero Day Initiative