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SECURITY BULLETIN: Trend Micro InterScan Web Security Virtual Appliance (IWSVA) Multiple Remote Code Execution Vulnerabilities

    • Updated:
    • 23 Jun 2016
    • Product/Version:
    • InterScan Web Security Virtual Appliance 6.5
    • Platform:
    • N/A N/A
Summary

Release Date:  May 20, 2016
Trend Micro Vulnerability Identifier(s):  2016-0012, 2016-0013, 2016-0014, 2014-0024 
CVSS Base Score:  7.5
CVE Number: TBD
Platform(s):  Virtual Appliance

Trend Micro has released new builds of the Trend Micro InterScan Web Security Virtual Appliance.  These updates resolve vulnerabilities in the product that could potentially allow a remote attacker to execute arbitrary code on vulnerable installations. 

Details
Public

Affected Version(s)

ProductAffected Version(s)PlatformLanguage(s)
InterScan Web Security Virtual ApplianceVersion 6.5 SP2Virtual ApplianceEnglish
Version 6.0 SP1Virtual ApplianceEnglish
Version 6.0Virtual ApplianceEnglish

Solution

Trend Micro categorized this update with the following impact level and has released the following solutions to address the issue:

ProductUpdated versionNotesPlatformImpact LevelAvailability
InterScan Web Security Virtual ApplianceVersion 6.5 SP2 CP
(Build 1620)*
ReadmeVirtual ApplianceHighMay 20, 2016
Version 6.0 SP1 CP
(Build 1255)
ReadmeVirtual ApplianceHighMay 20, 2016
Version 6.0 CP
(Build 1262)
ReadmeVirtual ApplianceHighMay 20, 2016

* IWSVA Version 6.5 SP2 may return an error if both SP2 and the previous Critical Patch (build 1608) are not applied before applying 1620.

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 some vulnerabilities in the Trend Micro InterScan Web Security Virtual Appliance in which a remote attacker could potentially attain code execution under the context of either the current process or root. Customers are highly encouraged to update to the latest build as soon as possible.

Mitigating Factors

Remote code execution generally requires that an attack 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 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:

  • Anonymous working with Trend Micro’s Zero Day Initiative (ZDI)
  • k0rpr1t_z0mb1e working with Trend Micro’s Zero Day Initiative (ZDI)
  • Brian Gorenc of Trend Micro’s Zero Day Initiative (ZDI)

External Reference(s)

ZDI-16-348
ZDI-16-349
ZDI-16-350
ZDI-16-351

Premium
Internal
Rating:
Category:
SPEC
Solution Id:
1114185
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