Adrian Johnson
TLDR:
Key Points:
- There is a high-severity CVE-2024-6387 bug in OpenSSH that allows unauthenticated RCE as root.
- The bug, dubbed “RegreSSHion,” affects glibc-based Linux systems and could lead to full system compromise.
Overall, the article discusses the discovery of the “RegreSSHion” bug in OpenSSH by the Qualys Threat Research Unit (TRU). The bug, CVE-2024-6387, is a reintroduction of a 2006 flaw that allows unauthenticated remote code execution (RCE) as root on Linux systems. The vulnerability, with an 8.1 CVSS score, has the potential to result in complete system takeover, installation of malware, data manipulation, and the creation of backdoors for persistent access. The bug affects more than 14 million OpenSSH server instances exposed to the Internet and showcases the importance of regression testing for security fixes. The article also highlights the challenge of exploiting and remediating the vulnerability, as well as provides recommendations for users to mitigate the risk including upgrading to the latest version of OpenSSH and employing network-based controls.
