Affected Version(s)
| Product | Affected Version(s) | Platform | Language(s) |
|---|---|---|---|
| Worry-Free Business Security (WFBS) | 10.0 SP1 | Windows | English |
| Worry-Free Business Security Services (WFBSS) | SaaS | Windows | English |
Solution
Trend Micro has released the following solutions to address the issue:
| Product | Updated version(s) | Notes | Platform | Availability |
|---|---|---|---|---|
| WFBS | 10.0 SP1 Patch 2390 | Readme | Windows | Now Available |
| WFBSS | Agent 6.7.1728/14.2.1389 & Agent 6.7.2051/14.2.2039 | Windows | Already Deployed |
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.
Vulnerability Details
CVE-2022-24678: Trend Micro Worry-Free Business Security Agent Resource Exhaustion Denial-of-Service Vulnerability CVSSv3: 5.3: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
An security agent resource exhaustion denial-of-service vulnerability in Trend Micro Worry-Free Business Security and Trend Micro Worry-Free Business Security Services agents could allow an attacker to flood a temporary log location and consume all disk space on affected installations.
CVE-2022-24679: Trend Micro Worry-Free Business Security Agent Link Following Local Privilege Escalation Vulnerability
CVSSv3: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
A security link following local privilege escalation vulnerability in Trend Micro Worry-Free Business Security and Trend Micro Worry-Free Business Security Services agents could allow a local attacker to create an writable folder in an arbitrary location and escalate privileges affected installations.
Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
CVE-2022-24680: Trend Micro Worry-Free Business Security Agent Link Following Local Privilege Escalation Vulnerability
CVSSv3: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
A security link following local privilege escalation vulnerability in Trend Micro Worry-Free Business Security and Trend Micro Worry-Free Business Security Services agents could allow a local attacker to create a mount point and leverage this for arbitrary folder deletion, leading to escalated privileges on affected installations.
Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
Mitigating Factors
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.
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.
Acknowledgement
Trend Micro would like to thank the following individuals for responsibly disclosing these issues and working with Trend Micro to help protect our customers:
- Elias Martinez (filenotfound) working with Trend Micro's Zero Day Initiative
- Abdelhamid Naceri working with Trend Micro's Zero Day Initiative
External Reference(s)
- ZDI-CAN-15047
- ZDI-CAN-14926
- ZDI-CAN-14815