Improper input validation in Rockwell Automation Armor Compact Guardlogix 5370 Controllers
CVE-2020-6998
The connection establishment algorithm found in Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior does not sufficiently manage its control flow during execution, creating an infinite loop. This may allow an attacker to send specially crafted CIP packet requests to a controller, which may cause denial-of-service conditions in communications with other products.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.023 (82.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.023 · change: +0.001
Affected products
- Rockwell Automation Armor Compact Guardlogix 5370 Controllers — versions unspecified
- Rockwell Automation Armor Guardlogix Safety Controllers — versions unspecified
- Rockwell Automation Compact Guardlogix 5370 Controllers — versions unspecified
- Rockwell Automation Compactlogix 5370 L1 Controllers — versions unspecified
- Rockwell Automation Compactlogix 5370 L2 Controllers — versions unspecified
- Rockwell Automation Compactlogix 5370 L3 Controllers — versions unspecified
- Rockwell Automation Controllogix 5570 Controllers — versions unspecified
- Rockwellautomation Armor Compact Guardlogix 5370
- Rockwellautomation Armor Compact Guardlogix 5370 Firmware
- Rockwellautomation Compact Guardlogix 5370
Weakness classification (CWE)
References
- www.cisa.gov/uscert/ics/advisories/icsa-21-061-02 (US Government Resource, Third Party Advisory)
- rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1130398 (Vendor Advisory, Permissions Required)
Frequently asked questions
- What is CVE-2020-6998?
- CVE-2020-6998 is a medium-severity vulnerability in Rockwell Automation Armor Compact Guardlogix 5370 Controllers, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2022-07-27.
- How severe is CVE-2020-6998?
- Medium severity. CVSS v3 base score is 5.8 out of 10.