What’s Vulnerable › Vulnerabilities

CVE-2024-39223

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-03 · updated 2026-06-17
• Weakness: CWE-639

Description

An authentication bypass in the SSH service of gost v2.11.5 allows attackers to intercept communications via setting the HostKeyCallback function to ssh.InsecureIgnoreHostKey

Affected products

• ginuerzh gost: through 2.11.5

References

• https://gist.github.com/nyxfqq/a7242170b1118e78436a62dee4e09e8a
• https://github.com/ginuerzh/gost/blob/729d0e70005607dc7c69fc1de62fd8fe21f85355/ssh.go#L229
• https://github.com/ginuerzh/gost/issues/1034
• https://gist.github.com/nyxfqq/a7242170b1118e78436a62dee4e09e8a
• https://github.com/ginuerzh/gost/blob/729d0e70005607dc7c69fc1de62fd8fe21f85355/ssh.go#L229
• https://github.com/ginuerzh/gost/issues/1034

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