CVE-2020-17517
Published: 27 April 2021
Summary
CVE-2020-17517 is a high-severity Improper Authorization (CWE-285) vulnerability in Apache Ozone. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 37.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-9460
Vulnerability details
The S3 buckets and keys in a secure Apache Ozone Cluster must be inaccessible to anonymous access by default. The current security vulnerability allows access to keys and buckets through a curl command or an unauthenticated HTTP request. This enables…
more
unauthorized access to buckets and keys thereby exposing data to anonymous clients or users. This affected Apache Ozone prior to the 1.1.0 release.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Mandating explicit authorization of mobile device connections reduces the risk of improper authorization decisions for system access.
Ensures authorization decisions are always performed by a complete and analyzable reference monitor.
Auditing session actions allows identification of improper authorization decisions and enforcement failures.
The process verifies authorization mechanisms function as intended before system approval.
By limiting enabled features to only those needed, the control strengthens authorization by removing opportunities for unauthorized use of excess functionality.
Dedicated authorization servers support policy-based decisions, mitigating improper authorization.
Protecting the shutoff from unauthorized activation enforces proper authorization for this critical operation.