Unprotected storage of credentials in IDEC Corporation products - CVE-2021-20827
Published: January 7, 2022
Vulnerability identifier: #VU59297
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-20827
CWE-ID: CWE-256
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: IDEC Corporation
Affected software:
FC6A MICROSmart All-in-One CPU Module
FC6B MICROSmart All-in-One CPU Module
FC6A MICROSmart Plus CPU Module
FC6B MICROSmart Plus CPU Module
FT1A Controller SmartAXIS Pro/Lite
WindLDR
WindEDIT Lite
Data File Manager
WindEDIT
FC6A MICROSmart All-in-One CPU Module
FC6B MICROSmart All-in-One CPU Module
FC6A MICROSmart Plus CPU Module
FC6B MICROSmart Plus CPU Module
FT1A Controller SmartAXIS Pro/Lite
WindLDR
WindEDIT Lite
Data File Manager
WindEDIT
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to other users' credentials.
The vulnerability exists due to application stored credentials in plain text in a configuration file on the system. A remote attacker on the local network can obtain the PLC web server user credentials from file servers, backup repositories, or ZLD files saved in SD cards.
How to mitigate CVE-2021-20827
Install updates from vendor's website.