Understanding the regreSSHion Vulnerability in OpenSSH

Understanding the regreSSHion Vulnerability in OpenSSH

BySumGuy

The regreSSHion vulnerability (CVE-2024-6387) in OpenSSH’s server (sshd) on glibc-based Linux systems is a critical flaw due to a signal handler race condition. This vulnerability, a regression of CVE-2006-5051, allows unauthenticated remote code execution as root. It affects sshd’s default configuration and was reintroduced in OpenSSH 8.5p1. Immediate mitigation includes applying patches and adjusting `LoginGraceTime`. This issue underscores the importance of thorough regression testing and vigilant patch management in cybersecurity.

SSH key ed25519
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Ed25519 ssh keys

BySumGuy

What are Ed25519 ssh keys? Ed25519 SSH keys are a type of public-key cryptography used for secure communication over a network. They are based on the Ed25519 elliptic curve algorithm, which is a variant of the elliptic curve algorithm used for digital signatures. The Ed25519 algorithm was designed to be faster and more secure than…

sshfs
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SSHFS mount remote file system locally over SSH

BySumGuy

[et_pb_section admin_label=”Section” fullwidth=”on” specialty=”off”][et_pb_fullwidth_post_title admin_label=”Fullwidth Post Title” title=”on” meta=”on” author=”off” date=”on” categories=”on” comments=”off” featured_image=”on” featured_placement=”background” parallax_effect=”off” parallax_method=”on” text_orientation=”center” text_color=”dark” text_background=”on” text_bg_color=”rgba(255,255,255,0.9)” module_bg_color=”rgba(255,255,255,0)” title_all_caps=”off” use_border_color=”off” border_color=”#ffffff” border_style=”solid”] [/et_pb_fullwidth_post_title][/et_pb_section][et_pb_section admin_label=”section”][et_pb_row admin_label=”row”][et_pb_column type=”4_4″][et_pb_text admin_label=”Text” background_layout=”light” text_orientation=”left” use_border_color=”off” border_color=”#ffffff” border_style=”solid”] SSHFS is a filesystem client based on the SSH File Transfer Protocol. Since most SSH servers already support this…