What you need to know about #regreSSHion: an #OpenSSH server remote code execution vulnerability
#CVE20246387
https://ubuntu.com//blog/ubuntu-regresshion-security-fix
What you need to know about regreSSHion: an OpenSSH server remote code execution vulnerability (CVE-2024-6387) | Ubuntu

Details about the high-impact CVE-2024-6387 vulnerability, nicknamed regreSSHion, and the Ubuntu fix released on the CRD. […]

Ubuntu

I don't suppose anyone was able to snag the reported compiled exploit binary before it was taken down?

https://securityboulevard.com/2024/07/regresshion-cve-2024-6387-a-targeted-exploit-in-the-wild/

#RegreSSHion #cve20246387

RegreSSHion CVE-2024-6387: A Targeted Exploit in the Wild  

A critical security flaw, known as regression and cataloged under CVE-2024-6387, has been identified in OpenSSH, just a few days ago. This vulnerability allows an unauthenticated attacker to execute arbitrary code and potentially obtain root access on the compromised system. Despite the severity sounding akin to notorious vulnerabilities like WannaCry and Log4Shell, the practical risk The post RegreSSHion CVE-2024-6387: A Targeted Exploit in the Wild   appeared first on VERITI.

Security Boulevard

There isn't yet a patch for CVE-2024-6387 a.k.a. "regreSSHion" in RHEL9 but Red Hat suggests a mitigation by setting LoginGraceTime to 0 in sshd_config (source: https://access.redhat.com/security/cve/cve-2024-6387)

I wrote a small Ansible playbook to do this on multiple systems in an automated way.

If someone has the same task, feel free to draw inspiration from here:

https://gist.github.com/chofstede/67641b45f7b2379bab5832b70c0b8351

It's tested and idempotent (can run multiple times with the same result) but no warranties. Use at your own risk.

And for other systems, I've made a playbook to patch openssh to the latest version: https://gist.github.com/chofstede/c076ededc4fbf0478740473542af98c3)

#linux #regresshion #cve20246387 #ansible #rhel #redhat #mitigation #sysadmin #openssh #security

cve-details

🚨 Critical OpenSSH Vulnerability Alert🚨

A severe Remote Unauthenticated Code Execution (RCE) vulnerability has been identified in OpenSSH's server (sshd) on glibc-based Linux systems. This critical flaw, assigned CVE-2024-6387, poses a significant security risk as it allows unauthenticated remote code execution as root.

#CyberSecurity #OpenSSH #Vulnerability #CVE20246387 #RCE #Linux #SysAdmin #Infosec #SecurityAlert #TechNews

https://www.relianoid.com/blog/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server/

regreSSHion: Remote Unauthenticated Code Execution Vulnerability in OpenSSH Server

A severe Remote Unauthenticated Code Execution (RCE) vulnerability has been recently identified in OpenSSH’s server (sshd) on glibc-based Linux systems. This high-severe flaw, assigned CVE-2024-6387…

RELIANOID

I wrote a small #Ansible playbook to automate updating openssh to the latest available version on multiple hosts (Works on Debian and EL based distributions):

https://gist.github.com/chofstede/c076ededc4fbf0478740473542af98c3

❯ ansible-playbook -i inventory patch_openssh.yml

Just sharing this here, in case, someone might find it helpful. Use at your own risk.

#linux #openssh #cve20246387 #rce #sysadmin #security #vulnerability

patch_openssh.yml

GitHub Gist: instantly share code, notes, and snippets.

Gist

Bueno, feliz lunes para todos los sysadmins. Vulnerabilidad en OpenSSH (CVE-2024-6387), comprueben las versiones y actualicen cuanto antes. Podría ser peor, podría ser viernes.

Hay una "mitigation" si no pueden actualizar, pero ojo que abre la puerta a un posible DoS para SSH.

https://www.openssh.com/releasenotes.html#9.8p1
https://ubuntu.com/security/CVE-2024-6387

#SSH #CVE20246387

OpenSSH: Release Notes

OpenSSH release notes

We've had some comments from the security community regarding our use of telnet but please be assured that all our passwords are 2048bit.

#openssh #CVE20246387 #RCE #security #telnet #infosec

We can assure our customers that we are fully protected against the new OpenSSH security vulnerability as we use telnet

#openssh #CVE20246387 #RCE #security