CVE-2020-8561
Kubernetes Request Redirection Vulnerability
Description
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.
INFO
Published Date :
Sept. 20, 2021, 5:15 p.m.
Last Modified :
Nov. 6, 2021, 3:04 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.3
Public PoC/Exploit Available at Github
CVE-2020-8561 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-8561.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
⚙ DevSecOps Kubernetes Playground ("A Hacker's Guide to Kubernetes")
Dockerfile Shell Ruby Smarty Jinja HCL
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-8561 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8561 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Nov. 06, 2021
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20211014-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20211014-0002/ Third Party Advisory -
CVE Modified by [email protected]
Oct. 14, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20211014-0002/ [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 01, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N Changed Reference Type https://github.com/kubernetes/kubernetes/issues/104720 No Types Assigned https://github.com/kubernetes/kubernetes/issues/104720 Mitigation, Third Party Advisory Changed Reference Type https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY No Types Assigned https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY Mailing List, Mitigation Added CWE NIST CWE-610 Added CPE Configuration OR *cpe:2.3:a:kubernetes:kubernetes:1.20.11:-:*:*:*:*:*:* *cpe:2.3:a:kubernetes:kubernetes:1.21.5:-:*:*:*:*:*:* *cpe:2.3:a:kubernetes:kubernetes:1.22.2:-:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8561 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-8561
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} -0.02%
score
0.31948
percentile