#VU23636 Unprotected storage of credentials in Kubernetes - CVE-2019-11250
Published: December 17, 2019 / Updated: December 17, 2019
Vulnerability identifier: #VU23636
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-11250
CWE-ID: CWE-256
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Kubernetes
Kubernetes
Software vendor:
Kubernetes
Kubernetes
Description
The vulnerability allows a local user to gain access to other users' credentials.
The vulnerability exists due Kubernetes client-go library logs request headers at verbosity levels of 7 or higher. This can disclose credentials to unauthorized users via logs or command output. Kubernetes components (such as kube-apiserver) prior to v1.16.0, which make use of basic or bearer token authentication, and run at high verbosity levels, are affected. A local user can view contents of the configuration file and gain access to passwords for 3rd party integration.
Remediation
Install updates from vendor's website.