What’s Vulnerable › Vulnerabilities

CVE-2020-24359

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-08-20 · updated 2026-06-17
• Weakness: CWE-20

Description

HashiCorp vault-ssh-helper up to and including version 0.1.6 incorrectly accepted Vault-issued SSH OTPs for the subnet in which a host's network interface was located, rather than the specific IP address assigned to that interface. Fixed in 0.2.0.

Affected products

• HashiCorp Vault-Ssh-Helper: before 0.2.0 — fixed in 0.2.0

How to fix

Upgrade to a fixed version: HashiCorp Vault-Ssh-Helper 0.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/hashicorp/vault-ssh-helper/blob/master/CHANGELOG.md#020-august-19-2020
• https://github.com/hashicorp/vault-ssh-helper/releases
• https://github.com/hashicorp/vault-ssh-helper/blob/master/CHANGELOG.md#020-august-19-2020
• https://github.com/hashicorp/vault-ssh-helper/releases

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