Home/CVE/Rockwell Automation MicroLogix 1400 Controllers and 1756 ControlLogix Communications Modules An unauthenticated, remote
CVE

CVE-2018-17924

Rockwell Automation MicroLogix 1400 Controllers and 1756 ControlLogix Communications Modules An unauthenticated, remote

Rockwell Automation MicroLogix 1400 Controllers and 1756 ControlLogix Communications Modules An unauthenticated, remote threat actor could send a CIP connection request to an affected device, and upon successful connection, send a new IP configuration to the affected device even if the controller in the system is set to Hard RUN mode. When the affected device accepts this new IP configuration, a loss of communication occurs between the device and the rest of the system as the system traffic is still attempting to communicate with the device via the overwritten IP address.

HIGH · CVSS 8.6 EPSS 0.00087
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-306Missing Authentication for Critical Function
CWE-306Missing Authentication for Critical Function
▤

Affected Products & Versions

16
rockwellautomation micrologix 1400 firmwareall versions
rockwellautomation 1756-enbt firmwareall versions
rockwellautomation 1756-eweb series a firmwareall versions
rockwellautomation 1756-eweb series b firmwareall versions
rockwellautomation 1756-en2f series a firmwareall versions
rockwellautomation 1756-en2f series b firmwareall versions
rockwellautomation 1756-en2f series c firmware<= 10.10
rockwellautomation 1756-en2t series a firmwareall versions
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Scoring & Timeline

8.6
HIGH · CVSS v3.1 · ics-cert@hq.dhs.gov
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Dec 2018 · 02:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2018-icsa-18-310-02
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/106132Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-310-02MitigationThird Party AdvisoryUS Government Resource
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