Information disclosure in Kubernetes - CVE-2019-11248
Published: August 29, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30805
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-11248
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. The go pprof endpoint is exposed over the Kubelet's healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.
Affected software
Kubernetes
Fedora
kubernetes
Fedora
kubernetes
How to mitigate CVE-2019-11248
Install update from vendor's website.
Kubernetes - update to 1.12.10
kubernetes - update to 1.15.2-1.fc30
kubernetes - update to 1.15.2-1.fc30