CVEs-PoC/2021/CVE-2021-25737.md

### [CVE-2021-25737](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25737)
![](https://img.shields.io/static/v1?label=Product&message=Kubernetes&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%3D%201.18.18%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-184%20Incomplete%20Blacklist&color=brighgreen)

### Description

A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/43622283/awesome-cloud-native-security
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Metarget/awesome-cloud-native-security
- https://github.com/adavarski/HomeLab-Proxmox-k8s-DevSecOps-playground
- https://github.com/adavarski/HomeLab-k8s-DevSecOps-playground
- https://github.com/atesemre/awesome-cloud-native-security
- https://github.com/kajogo777/kubernetes-misconfigured
- https://github.com/magnologan/awesome-k8s-security
- https://github.com/reni2study/Cloud-Native-Security2