Use of a broken or risky cryptographic algorithm in Rockwell Automation products - CVE-2020-6984
Published: March 11, 2020
Vulnerability identifier: #VU25990
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-6984
CWE-ID: CWE-327
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to sensitive information on the system.
The vulnerability exists due to the cryptographic function utilized to protect the password in MicroLogix is discoverable. A remote attacker can gain access to sensitive project file information including passwords.
Affected software
MicroLogix 1400 Controllers Series A
MicroLogix 1400 Controllers Series B
Allen-Bradley MicroLogix 1100
RSLogix 500 Software
MicroLogix 1400 Controllers Series B
Allen-Bradley MicroLogix 1100
RSLogix 500 Software
How to mitigate CVE-2020-6984
Install updates from vendor's website.
MicroLogix 1400 Controllers Series B - update to 21.002
RSLogix 500 Software - update to 11.00.00
RSLogix 500 Software - update to 11.00.00