CVE-2021-22147
Published: 15 September 2021
Summary
CVE-2021-22147 is a medium-severity Incorrect Permission Assignment for Critical Resource (CWE-732) vulnerability in Elastic Elasticsearch. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 45.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-1968
Vulnerability details
Elasticsearch before 7.14.0 did not apply document and field level security to searchable snapshots. This could lead to an authenticated user gaining access to information that they are unauthorized to view.
- 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 an access control policy ensures authorization checks are defined and applied for critical functions.
Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.
Assessments review permission assignments on critical resources to confirm correctness, mitigating exploitation via incorrect permissions.
Requires verification that authorization checks are present and operational for protected resources.
Defining and enforcing access restrictions ensures correct permission assignments on resources that support changes.
Tailoring actions include assigning or restricting permissions on critical resources to the minimum necessary for the system's purpose and threat environment.
Requiring documented authorization for system operation and critical functions ensures missing authorization controls are identified and corrected during the approval process.
Program reviews and corrects overly permissive resource assignments that insiders could exploit for unauthorized access.