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CVE-2024-6387 — regreSSHion — OpenSSH Remote Code Execution

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CRITICAL severity

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Overview

A signal handler race condition in OpenSSH's server (sshd) on glibc-based Linux allows unauthenticated remote code execution as root. Affects OpenSSH < 4.4p1 and 8.5p1–9.8p1.

Vulnerability details

CVE ID: CVE-2024-6387
Vulnerability: regreSSHion — OpenSSH Remote Code Execution
Vendor: cpe
Affected products: cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
Severity: CRITICAL
Exploitation status: No confirmed in-the-wild exploitation
CVSS: 8.1
Published: 2024-07-01

Remediation guidance

Prioritize remediation of CVE-2024-6387 based on exposure and asset criticality.

Apply the vendor's official security update for cpe the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.

Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.

Authoritative references

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