cve/2020/CVE-2020-9015.md

### [CVE-2020-9015](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9015)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

** DISPUTED ** Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly permissive regular expression in the TACACS+ server permitted commands.

### POC

#### Reference
- http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html
- http://packetstormsecurity.com/files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html
- https://securitybytes.me
- https://securitybytes.me
- https://securitybytes.me/posts/cve-2020-9015/
- https://securitybytes.me/posts/cve-2020-9015/

#### Github
- https://github.com/ARPSyndicate/cvemon