Externally Controlled Reference to a Resource in Another Sphere in Kubernetes - CVE-2020-8561
Published: September 18, 2024
Vulnerability identifier: #VU97474
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-8561
CWE-ID: CWE-610
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Kubernetes
Kubernetes
Software vendor:
Kubernetes
Kubernetes
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests is able to redirect kube-apiserver requests to private networks of the apiserver.
Remediation
Install updates from vendor's website.