high
7.8
CWE
119
Advisory Published
Updated

CVE-2012-6442: Buffer Overflow

First published: Thu Jan 24 2013(Updated: )

Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400 allow remote attackers to cause a denial of service (control and communication outage) via a CIP message that specifies a reset.

Credit: ics-cert@hq.dhs.gov

Affected SoftwareAffected VersionHow to fix
Rockwell Automation Ethernet/IP Firmware
Rockwell Automation 1756-ENBT
Rockwell Automation 1756-EWEB
Rockwell Automation 1768-ENBT
Rockwell Automation 1768-EWEB
Rockwell Automation CompactLogix Firmware
Rockwell Automation L32E
rockwellautomation L35E
FLEXLogix firmware
Rockwell Automation 1788-ENBT
Rockwell Automation FLEX I/O Ethernet/IP Firmware
Rockwell Automation 1794-AENTR
Rockwell Automation MicroLogix Firmware
Rockwell Automation MicroLogix 1100
Rockwell Automation 1400
Rockwell Automation CompactLogix Controllers Firmware=19
Rockwell Automation CompactLogix Firmware=18
Rockwell Automation ControlLogix Controllers=20
Rockwell Automation ControlLogix Controllers Firmware=18
Rockwell Automation GuardLogix controllers firmware=20
Rockwell Automation GuardLogix Firmware=18
Rockwell Automation SoftLogix Controllers Firmware=19
Rockwell Automation SoftLogix Firmware=18

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-6442?

    CVE-2012-6442 has a severity rating of high due to its potential to allow unauthorized access and control of affected devices.

  • How do I fix CVE-2012-6442?

    To remediate CVE-2012-6442, update to the latest firmware version provided by Rockwell Automation for your affected devices.

  • Which products are affected by CVE-2012-6442?

    CVE-2012-6442 affects multiple Rockwell Automation EtherNet/IP products including 1756-ENBT, 1768-ENBT, and CompactLogix controllers among others.

  • Is CVE-2012-6442 remotely exploitable?

    Yes, CVE-2012-6442 can be exploited remotely, potentially allowing attackers to gain control of affected devices.

  • Are there any workarounds for CVE-2012-6442?

    While updating firmware is the primary fix for CVE-2012-6442, reducing network exposure of affected devices can serve as a temporary workaround.

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