CVE-2012-4690
highpriority · track · 29EPSS 0.041 · 91 %ileEUUSEPSS · scored 2026-10-27
Rockwell Automation Allen-Bradley MicroLogix controller 1100, 1200, 1400, and 1500; SLC 500 controller platform; and PLC-5 controller platform, when Static status is not enabled, allow remote attackers to cause a denial of service via messages that trigger modification of status bits.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationMicroLogix 1100 Controllercisa_csaf_ot
Rockwell Automation recommends the following mitigation strategies to help reduce the likelihood of compromise and the associated security risk. When possible, multiple strategies should be employed simultaneously. If possible, change the controller’s settings to the nonvulnerable state: SLC-500: Set the Status file to “Static”. PLC-5: Enable the Passwords and Privileges feature. Employ layered security and defense-in-depth methods in system design to restrict and control access to individual products and control networks. Refer to (http://www.ab.com/networks/architectures.html) for comprehensive information about implementing validated architectures designed to deliver these measures.
http://www.ab.com/networks/architectures.html - MitigationMicroLogix 1200 controllercisa_csaf_ot
Rockwell Automation recommends the following mitigation strategies to help reduce the likelihood of compromise and the associated security risk. When possible, multiple strategies should be employed simultaneously. If possible, change the controller’s settings to the nonvulnerable state: SLC-500: Set the Status file to “Static”. PLC-5: Enable the Passwords and Privileges feature. Employ layered security and defense-in-depth methods in system design to restrict and control access to individual products and control networks. Refer to (http://www.ab.com/networks/architectures.html) for comprehensive information about implementing validated architectures designed to deliver these measures.
http://www.ab.com/networks/architectures.html - MitigationMicroLogix 1400 controllercisa_csaf_ot
Rockwell Automation recommends the following mitigation strategies to help reduce the likelihood of compromise and the associated security risk. When possible, multiple strategies should be employed simultaneously. If possible, change the controller’s settings to the nonvulnerable state: SLC-500: Set the Status file to “Static”. PLC-5: Enable the Passwords and Privileges feature. Employ layered security and defense-in-depth methods in system design to restrict and control access to individual products and control networks. Refer to (http://www.ab.com/networks/architectures.html) for comprehensive information about implementing validated architectures designed to deliver these measures.
http://www.ab.com/networks/architectures.html - MitigationMicroLogix 1500 controllercisa_csaf_ot
Rockwell Automation recommends the following mitigation strategies to help reduce the likelihood of compromise and the associated security risk. When possible, multiple strategies should be employed simultaneously. If possible, change the controller’s settings to the nonvulnerable state: SLC-500: Set the Status file to “Static”. PLC-5: Enable the Passwords and Privileges feature. Employ layered security and defense-in-depth methods in system design to restrict and control access to individual products and control networks. Refer to (http://www.ab.com/networks/architectures.html) for comprehensive information about implementing validated architectures designed to deliver these measures.
http://www.ab.com/networks/architectures.html - MitigationPLC-5 controller platform PLC-5 Control Systemcisa_csaf_ot
Rockwell Automation recommends the following mitigation strategies to help reduce the likelihood of compromise and the associated security risk. When possible, multiple strategies should be employed simultaneously. If possible, change the controller’s settings to the nonvulnerable state: SLC-500: Set the Status file to “Static”. PLC-5: Enable the Passwords and Privileges feature. Employ layered security and defense-in-depth methods in system design to restrict and control access to individual products and control networks. Refer to (http://www.ab.com/networks/architectures.html) for comprehensive information about implementing validated architectures designed to deliver these measures.
http://www.ab.com/networks/architectures.html - MitigationSLC 500 controller platformcisa_csaf_ot
Rockwell Automation recommends the following mitigation strategies to help reduce the likelihood of compromise and the associated security risk. When possible, multiple strategies should be employed simultaneously. If possible, change the controller’s settings to the nonvulnerable state: SLC-500: Set the Status file to “Static”. PLC-5: Enable the Passwords and Privileges feature. Employ layered security and defense-in-depth methods in system design to restrict and control access to individual products and control networks. Refer to (http://www.ab.com/networks/architectures.html) for comprehensive information about implementing validated architectures designed to deliver these measures.
http://www.ab.com/networks/architectures.html
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
- rockwellautomation ab micrologix controller= 1100nvdUScpe:2.3:h:rockwellautomation:ab_micrologix_controller:*:*:*:*:*:*:*:*
- rockwellautomation ab micrologix controller= 1200nvdUScpe:2.3:h:rockwellautomation:ab_micrologix_controller:*:*:*:*:*:*:*:*
- rockwellautomation ab micrologix controller= 1400nvdUScpe:2.3:h:rockwellautomation:ab_micrologix_controller:*:*:*:*:*:*:*:*
- rockwellautomation ab micrologix controller= 1500nvdUScpe:2.3:h:rockwellautomation:ab_micrologix_controller:*:*:*:*:*:*:*:*
- rockwellautomation plc-5 controllerall versionsnvdUScpe:2.3:h:rockwellautomation:plc-5_controller:*:*:*:*:*:*:*:*
- rockwellautomation slc 500 controllerall versionsnvdUScpe:2.3:h:rockwellautomation:slc_500_controller:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-12-342-01BRockwell Allen-Bradley MicroLogix, SLC 500, and PLC-5 Fault Generation Vulnerability2012-09-10icsa · cisa_csaf_otUS
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-342-01.pdfcnnvd
- https://rockwellautomation.custhelp.com/app/answers/detail/a_id/511407cnnvd
- http://ics-cert.us-cert.gov/advisories/ICSA-12-342-01Aenisa_euvd
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-342-01.pdfenisa_euvd
- https://rockwellautomation.custhelp.com/app/answers/detail/a_id/511407enisa_euvd
- http://ics-cert.us-cert.gov/advisories/ICSA-12-342-01Anvd
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-342-01.pdfUS Government Resourcenvd
- https://rockwellautomation.custhelp.com/app/answers/detail/a_id/511407nvd
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