Experion PKS Vulnerabilities Patched

Monday, December 22, 2014 @ 01:12 PM gHale

Honeywell created patches that mitigate vulnerabilities in its Experion Process Knowledge System (PKS) application, according to a report on ICS-CERT.

The vulnerabilities, discovered by Alexander Tlyapov, Gleb Gritsai, Kirill Nesterov, Artem Chaykin and Ilya Karpov of the Positive Technologies Research Team and Security Lab, are remotely exploitable.

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The following Honeywell Experion PKS versions suffer from the issue:
• All supported Experion PKS R40x versions prior to Experion PKS R400.6
• All supported Experion PKS R41x versions prior to Experion PKS R410.6
• All supported Experion PKS R43x versions prior to Experion PKS R430.2

In addition, Experion PKS R311.2 suffers from the vulnerabilities but no longer remains supported by Honeywell. Users running Experion PKS R311.2 should upgrade to a supported version of Experion PKS.

Successful exploitation of these vulnerabilities could allow remote, unauthenticated attackers to execute arbitrary code on a vulnerable system.

Honeywell Experion PKS is a distributed control system solution that sees global deployment through Honeywell Process Solutions. The system sees action for automation and control of industrial and manufacturing processes.

Honeywell’s integrated process automation Experion PKS consists of web-based SCADA systems. Experion PKS works across several sectors including chemical, critical manufacturing, energy and healthcare and public health.

Multiple heap-based buffer overflow vulnerabilities exist in the confd.exe, dual_onsrv.exe, hscodbcn.exe, and ripsd.exe modules, which could lead to possible remote code execution or denial of service.

CVE-2014-9187 is the case number assigned to this vulnerability, which has a CVSS v2 base score of 7.6.

Multiple stack-based buffer overflow vulnerabilities were in confd.exe, hscodbcn.exe and pscdasrv.exe modules that could lead to possible remote code execution, dynamic memory corruption, or denial of service.

CVE-2014-9189 is the case number assigned to this vulnerability, which has a CVSS v2 base score of 10.0.

An Arbitrary Memory Write vulnerability exists in the dual_onsrv.exe module that could lead to possible remote code execution or denial of service.

CVE-2014-5435 is the case number assigned to this vulnerability, which has a CVSS v2 base score of 9.3.

A Directory Traversal vulnerability exists in the confd.exe module, which could lead to possible information disclosure.

CVE-2014-5436 is the case number assigned to this vulnerability, which has a CVSS v2 base score of 5.0.

A file inclusion vulnerability exists in the confd.exe module, which could lead to accepting an arbitrary file into the function, and potential information disclosure or remote code execution.

CVE-2014-9186 is the case number assigned to this vulnerability, which has a CVSS v2 base score of 5.0.

No known public exploits specifically target these vulnerabilities, however, an attacker with a moderate skill would be able to exploit these vulnerabilities.

Honeywell currently supports Experion PKS Versions R400.6, R410.6, and 430.2.

Honeywell encourages and recommends all customers running unsupported versions of Experion PKS prior to R400 to upgrade to a supported version.

Available patches for software downloads that resolve the issues:
• Experion Update Patch R400.6
• Experion Update Patch R410.6
• Experion Update Patch R430.2

Contact Honeywell technical support for registration and installation instructions for these patches.



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