Trend Micro Vulnerability Identifier(s): VRTS-337, 339, 972
CVE Identifier(s): CVE-2017-11393, 11394
Platform(s): Windows
CVSS 2.0 Score(s): 9 (VRTS-337, 339)
CVSS 3.0 Score(s): 4.3 (VRTS-972
Severity Rating(s): High (337,339) and Medium (972)
Trend Micro has released some Critical Patches (CPs) for Trend Micro OfficeScan 11.0 SP1 and XG (12.0). These CPs resolves multiple vulnerabilities related to potential cross-site scripting (XSS) and remote command execution (RCE) exploits.
Affected Version(s)
| Product | Affected Version(s) | Platform | Language(s) |
|---|---|---|---|
| OfficeScan | 11.0 SP1 | Windows | English |
| XG (12.0) | Windows | English |
Solution
Trend Micro has released the following solutions to address the issue:
| Product | Updated version* | Notes | Platform | Availability |
|---|---|---|---|---|
| OfficeScan | XG CP 1641 r1 | Readme | Windows | Now |
| 11.0 SP1 CP 6392 r1 | Readme | Windows | Now |
* The RCE vulnerabilities (VRTS-337,339) highlighted in this bulletin have already been addressed in OSCE XG via a fix that can be obtained via Trend Micro's ActiveUpdate server. XG CP 1641 addresses the XSS (VRTS-972) issue only, while 11.0 SP1 CP 6392 addresses all three issues in the CP for OSCE 11.0 SP1.
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
This update resolves multiple vulnerabilities in Trend Micro OfficeScan:
1. A third-party component previously used for mapping displays was reported to be vulnerable to a XSS attack if exploited (VRTS-972).
2. A unauthenticated user could potentially attain remote code execution via a post-auth command injection (VRTS-337, 339).
Due to the seriousness of these and any vulnerabilities, customers are highly encouraged to update to the latest patches as soon as possible.
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:
- Steven Seeley of Source Incite working with Trend Micro's Zero Day Initiative
- Adriano Marcio Monteiro (@adrianomarcmont; www.linkedin.com/in/adrianomarcmont)
External Reference(s)
