CVE-2021-32056
Published: 10 May 2021
Summary
CVE-2021-32056 is a medium-severity Incorrect Permission Assignment for Critical Resource (CWE-732) vulnerability in Cyrus Imap. Its CVSS base score is 4.3 (Medium).
Operationally, ranked at the 42.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-18919
Vulnerability details
Cyrus IMAP before 3.2.7, and 3.3.x and 3.4.x before 3.4.1, allows remote authenticated users to bypass intended access restrictions on server annotations and consequently cause replication to stall.
- 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.
Procedures support proper permission assignment for critical resources through documented controls.
Attribute management for resources provides a mechanism to assign and maintain correct permissions based on security labels.
Prevents overly permissive assignments to critical resources by limiting to task needs.
Training policy covers correct permission assignment, reducing the ability to exploit incorrect permission assignments for critical resources.
Training on permission management reduces incorrect permission assignments for critical resources.
Audit logs and logging tools are critical resources whose protection requires correct permission assignments to block unauthorized actions.
Assessments review permission assignments on critical resources to confirm correctness, mitigating exploitation via incorrect permissions.
Certification includes checking that permissions on critical resources are correctly assigned.