Cleartext transmission of sensitive information in NGINX Controller - CVE-2021-23018
Published: September 22, 2022
Vulnerability identifier: #VU67564
CSH Severity: Medium
CVSS v4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-23018
CWE-ID: CWE-319
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the services within the NGINX Controller namespace are using cleartext protocols inside the cluster. A remote attacker with ability to intercept network traffic can gain access to sensitive data.
Affected software
NGINX Controller
IBM Cloud Pak for Business Automation
IBM Cloud Pak for Business Automation
How to mitigate CVE-2021-23018
Install updates from vendor's website.
NGINX Controller - update to 3.4.0
IBM Cloud Pak for Business Automation - update to 22.0.1.1
IBM Cloud Pak for Business Automation - update to 22.0.1.1