A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.
References
| Link | Resource |
|---|---|
| https://github.com/kubernetes/kubernetes/issues/104720 | Mitigation Third Party Advisory |
| https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY | Mailing List Mitigation |
| https://security.netapp.com/advisory/ntap-20211014-0002/ | Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
06 Nov 2021, 03:04
| Type | Values Removed | Values Added |
|---|---|---|
| References | (CONFIRM) https://security.netapp.com/advisory/ntap-20211014-0002/ - Third Party Advisory |
14 Oct 2021, 09:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
01 Oct 2021, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| References | (MLIST) https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY - Mailing List, Mitigation | |
| References | (CONFIRM) https://github.com/kubernetes/kubernetes/issues/104720 - Mitigation, Third Party Advisory | |
| CPE | cpe:2.3:a:kubernetes:kubernetes:1.22.2:-:*:*:*:*:*:* cpe:2.3:a:kubernetes:kubernetes:1.20.11:-:*:*:*:*:*:* cpe:2.3:a:kubernetes:kubernetes:1.21.5:-:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : 4.0
v3 : 4.1 |
| CWE | CWE-610 |
20 Sep 2021, 17:21
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-09-20 17:15
Updated : 2023-12-10 14:09
NVD link : CVE-2020-8561
Mitre link : CVE-2020-8561
CVE.ORG link : CVE-2020-8561
JSON object : View
Products Affected
kubernetes
- kubernetes