cve/2021/CVE-2021-28041.md

### [CVE-2021-28041](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28041)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.

### POC

#### Reference
- https://www.oracle.com//security-alerts/cpujul2021.html

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/MaulikxLakhani/SSHScout
- https://github.com/OhDamnn/Noregressh
- https://github.com/Totes5706/TotesHTB
- https://github.com/accalina/crowflag
- https://github.com/alvarigno/ChocolateFire-DockerLab
- https://github.com/alvarigno22/ChocolateFire-DockerLab
- https://github.com/austin-lai/External-Penetration-Testing-Holo-Corporate-Network-TryHackMe-Holo-Network
- https://github.com/krlabs/openssh-vulnerabilities
- https://github.com/nmuhammad22/UPennFinalProject
- https://github.com/phanfivequ/xinminxuehui-milou-d46T7p3s8FIwKQp0
- https://github.com/rainyjluke/Nmap-Vulnerability-Scanner
- https://github.com/wooflock/nmap-airgapped-vulnscan