CVE-2020-8555
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-8555
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1.18.2-1 |
| debian | bullseye | fixed | 1.18.2-1 |
| debian | forky | fixed | 1.18.2-1 |
| debian | sid | fixed | 1.18.2-1 |
| debian | trixie | fixed | 1.18.2-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | k8s.io/kubernetes | >=1.18.0,<1.18.1 | 1.18.1 |
| Go | k8s.io/kubernetes | >=1.17.0,<1.17.4 | 1.17.4 |
| Go | k8s.io/kubernetes | >=1.16.0,<1.16.9 | 1.16.9 |
| Go | k8s.io/kubernetes | <1.15.12 | 1.15.12 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-8555
- https://github.com/kubernetes/kubernetes/issues/91542
- https://github.com/kubernetes/kubernetes/pull/89794
- https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX
- https://security.netapp.com/advisory/ntap-20200724-0005
- http://www.openwall.com/lists/oss-security/2020/06/01/4
- http://www.openwall.com/lists/oss-security/2021/05/04/8
- https://github.com/advisories/GHSA-x6mj-w4jf-jmgw
- https://security-tracker.debian.org/tracker/CVE-2020-8555
Verify integrity in audit chain (admin only). AS-IS.