CVE-2020-24359: Improper Input Validation

February 15, 2022 (updated April 12, 2022)

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.

References

github.com/advisories/GHSA-f9fq-vjvh-779p
github.com/hashicorp/vault-ssh-helper/blob/master/CHANGELOG.md
github.com/hashicorp/vault-ssh-helper/commit/83effd08cbcbe4b993d776bd9b39465cd9e4603f
github.com/hashicorp/vault-ssh-helper/releases
nvd.nist.gov/vuln/detail/CVE-2020-24359

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