CVE-2014-0779: Schneider Electric StruxureWare SCADA Expert ClearSCADA Improper Restriction of Operations within the Bounds of a Memory Buffer

Published Mar 14, 2014

Updated

The PLC driver in ServerMain.exe in the Kepware KepServerEX 4 component in Schneider Electric StruxureWare SCADA Expert ClearSCADA 2010 R2 build 71.4165, 2010 R2.1 build 71.4325, 2010 R3 build 72.4560, 2010 R3.1 build 72.4644, 2013 R1 build 73.4729, 2013 R1.1 build 73.4832, 2013 R1.1a build 73.4903, 2013 R1.2 build 73.4955, and 2013 R2 build 74.5094 allows remote attackers to cause a denial of service (application crash) via a crafted OPF file (aka project file).

Affected Software

9 affected components

AVEVA Clearscada=2010-r2

AVEVA Clearscada=2010-r2.1

AVEVA Clearscada=2010-r3

AVEVA Clearscada=2010-r3.1

AVEVA Clearscada=2013-r1

AVEVA Clearscada=2013-r1.1

AVEVA Clearscada=2013-r1.1a

AVEVA Clearscada=2013-r1.2

AVEVA Clearscada=2013-r2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Remove
Remove Schneider Electric Kepware KepServerEX 4 (Kepware driver / PLC driver in ServerMain.exe) from your environment.
Uninstall the Kepware driver in the vulnerable product versions and migrate to an external installation of KepServerEX V5.
Configuration
For ClearSCADA vulnerable builds, ensure remote attackers cannot access or supply crafted OPF (project) files to the PLC driver in ServerMain.exe in the Kepware KepServerEX 4 component.
Schneider Electric StruxureWare SCADA Expert ClearSCADA OPF/project file handling (reduce exposure to crafted OPF files) = not specified

Event History

Mar 14, 2014

CVE Published

via MITRE·10:00 AM

Data Sourced

via MITRE·10:00 AM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·10:55 AM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2014-0779?

CVE-2014-0779 has a critical severity rating due to potential unauthorized access to the system.

How do I fix CVE-2014-0779?

To fix CVE-2014-0779, users should update to the latest version of the affected software as recommended by Schneider Electric.

What software versions are affected by CVE-2014-0779?

CVE-2014-0779 affects several versions of Avaiva ClearSCADA, including 2010 R2, 2010 R2.1, 2010 R3, and 2013 R1 among others.

What is the impact of CVE-2014-0779?

The impact of CVE-2014-0779 includes potential disruption and unauthorized manipulation of industrial control systems.

Is CVE-2014-0779 being actively exploited?

Yes, CVE-2014-0779 has been reported as being actively exploited in the wild, necessitating immediate attention from affected users.