Vulnerability Description
An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG Associated Fault Codes: 0023, 002e, and 0037 Fault Type: Recoverable Description: The STI, EII, and HSC function files contain bits signifying whether or not a fault has occurred. Additionally there is a bit signaling the module to auto start. When these bits are set for any of the three modules and the device is moved into a run state, a fault is triggered.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rockwellautomation | Micrologix 1400 B Firmware | <= 21.2 |
| Rockwellautomation | Micrologix 1400 | - |
References
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0443ExploitThird Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0443ExploitThird Party Advisory
FAQ
What is CVE-2017-14471?
CVE-2017-14471 is a vulnerability with a CVSS score of 10.0 (CRITICAL). An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted ...
How severe is CVE-2017-14471?
CVE-2017-14471 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-14471?
Check the references section above for vendor advisories and patch information. Affected products include: Rockwellautomation Micrologix 1400 B Firmware, Rockwellautomation Micrologix 1400.