CVEs-PoC/2021/CVE-2021-28507.md

### [CVE-2021-28507](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28507)
![](https://img.shields.io/static/v1?label=Product&message=EOS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=4.21.x%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.22.x%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.23.9M%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.24.7M%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.25.3%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.25.4M%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.25.5.1M%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.26.2F%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-284%20Improper%20Access%20Control&color=brightgreen)

### Description

An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the denied requests being forwarded to the agent.

### POC

#### Reference
- https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071

#### Github
No PoCs found on GitHub currently.