CVE Identifier(s): CVE-2020-24563 through 24565; CVE-2020-25770 through CVE-2020-25772; CVE-2020-28574
CVSS 3.0 Score(s): 3.3 - 10.0
Severity Rating(s): Low - Critical
Trend Micro has released a new patch for Trend Micro Worry-Free Business Security. This patch resolves multiple vulnerabilities related to out-of-bounds read information disclosure, authentication bypass and a CRITICAL one related to unauthenticated path traversal arbitrary remote file deletion.
|Worry-Free Business Security (WFBS)||10 SP1||Windows||English|
Trend Micro has released the following solutions to address the issue:
*Please note that some of the vulnerabilities were actually addressed in a previous patch (2245); however, since a critical one is included in 2260, it is highly recommended that customers obtain the latest version to ensure coverage of all vulnerabilities.
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-2020-24563: Authentication Bypass Vulnerability
CVSSv3: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
A vulnerability in Trend Micro Worry-Free Business Security 10 SP1 may allow a local attacker to manipulate the process of the security agent unload option (if configured), which then could be manipulated to gain a privilege escalation and code execution.
An attacker must first obtain the ability to execute low-privileged code on the target in order to exploit this vulnerability.
CVE-2020-24564, CVE-2020-24565, CVE-2020-25770, CVE-2020-25771, CVE-2020-25772: Out-of-Bounds Read Information Disclosure Vulnerabilities
CVSSv3: 5.6: AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H/E:P/CR:L/IR:L/AR:L
Several out-of-bounds read information disclosure vulnerabilities in Trend Micro Worry-Free Business Security 10 SP1 may allow a local attacker to disclose sensitive information to an unprivileged account on vulnerable installations of the product.
An attacker must first obtain the ability to execute low-privileged code on the target in order to exploit these vulnerabilities.
CVE-2020-28574: Unauthenticated Path Traversal Arbitrary Remote File Deletion Vulnerability
CRITICAL CVSSv3: 10.0: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
A unauthenticated path traversal arbitrary remote file deletion vulnerability in Trend Micro Worry-Free Business Security 10 SP1 could allow an unauthenticated attacker to exploit the vulnerability and modify or delete arbitrary files on the product's management console.
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/organizations for responsibly disclosing these issues and working with Trend Micro to help protect our customers:
- @Kharosx0 working with Trend Micro's Zero Day Initiative
- Lynn and Jay Lo working with Trend Micro's Zero Day Initiative
- Tenable, Inc.
- Tenable TRA-2020-62