CVE-2020-8565
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-8565
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-8565.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 1.20.0-1 |
| debian | bullseye | fixed | 1.20.0-1 |
| debian | forky | fixed | 1.20.0-1 |
| debian | sid | fixed | 1.20.0-1 |
| debian | trixie | fixed | 1.20.0-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | k8s.io/client-go | >=0.19.0,<0.19.6 | 0.19.6 |
| Go | k8s.io/client-go | >=0.20.0-alpha.0,<0.20.0-alpha.2 | 0.20.0-alpha.2 |
| Go | k8s.io/client-go | >=0.18.0,<0.18.14 | 0.18.14 |
| Go | k8s.io/client-go | <0.17.16 | 0.17.16 |
| Go | k8s.io/kubernetes | <1.20.0-alpha.2 | 1.20.0-alpha.2 |
| Go | k8s.io/client-go | <0.20.0-alpha.2 | 0.20.0-alpha.2 |
References
- https://www.suse.com/security/cve/CVE-2020-8565.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-8565
- https://github.com/kubernetes/kubernetes/issues/95623
- https://github.com/kubernetes/kubernetes/pull/95316
- https://github.com/kubernetes/client-go/commit/19875a3d5a2e0d4f51c976a9e0662de3c2c011e3
- https://github.com/kubernetes/client-go/commit/1b8383fc150c9b816b0072032cca75754c2734d0
- https://github.com/kubernetes/client-go/commit/44e1a07f2d513e375c4b6ee6e890040b47befe86
- https://github.com/kubernetes/client-go/commit/e8f871a2e5fadf90fc114565abc0963967f1a373
- https://github.com/kubernetes/kubernetes/commit/e99df0e5a75eb6e86123b56d53e9b7ca0fd00419
- https://github.com/kubernetes/client-go
- https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ
- https://pkg.go.dev/vuln/GO-2021-0064
- https://security-tracker.debian.org/tracker/CVE-2020-8565
Verify integrity in audit chain (admin only). AS-IS.