Resource exhaustion in Rockwellautomation Micrologix 1400
CVE-2017-12093
An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.060 (93.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: 0.000
Affected products
- Rockwellautomation Micrologix 1400
- Rockwellautomation Micrologix 1400 B Firmware
- Talos Allen Bradley — versions Allen Bradley Micrologix 1400 Series B FRN 21.2, Allen Bradley Micrologix 1400 Series B FRN 21.0, Allen Bradley Micrologix 1400 Series B FRN 15
Weakness classification (CWE)
References
- www.talosintelligence.com/vulnerability_reports/TALOS-2017-0445 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-12093?
- CVE-2017-12093 is a medium-severity vulnerability in Rockwellautomation Micrologix 1400, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2018-04-05.
- How severe is CVE-2017-12093?
- Medium severity. CVSS v3 base score is 5.3 out of 10.