CVE-2025-66406
BaseFortify
Publication date: 2025-12-03
Last updated on: 2025-12-04
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| smallstep | step_ca | 0.28.4 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in Step CA, prior to version 0.29.0, involves an improper authorization check for SSH certificate revocation when using the SSHPOP provisioner. This means that the system may allow unauthorized actions related to revoking SSH certificates, potentially leading to security issues. The vulnerability is fixed in version 0.29.0.
How can this vulnerability impact me? :
The vulnerability can impact you by allowing improper authorization in SSH certificate revocation, which could lead to unauthorized revocation or failure to revoke SSH certificates properly. This may result in denial of service or disruption of SSH access, affecting availability and integrity of systems relying on these certificates.
What immediate steps should I take to mitigate this vulnerability?
Upgrade Step CA to version 0.29.0 or later, as this version includes the fix for the improper authorization check for SSH certificate revocation affecting deployments using the SSHPOP provisioner.