CVE-2022-2837
Published: 03 March 2023
Summary
CVE-2022-2837 is a medium-severity Improper Restriction of Communication Channel to Intended Endpoints (CWE-923) vulnerability in Coredns.Io Coredns. Its CVSS base score is 6.1 (Medium).
Operationally, ranked in the top 46.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-1027
Vulnerability details
A flaw was found in coreDNS. This flaw allows a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating projects and namespaces that match the TLD.
- 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.
Authorizing wireless access restricts the wireless communication channel to only intended endpoints.
Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.
Approving specific exchanges and documenting interface characteristics restricts communication channels to only intended endpoints and systems.
Limits physical connectivity to transmission channels, supporting restriction of communication paths to only intended endpoints.
Requiring providers to meet communication-channel restrictions and monitoring adherence reduces improper restriction of channels to intended endpoints.
Mandates restriction of the channel for authentication to only the intended trusted endpoints, blocking unauthorized communication paths.
Explicit control of VoIP traffic forces organizations to restrict communication channels to only intended endpoints and protocols.
Explicit internal/external separation restricts name-resolution channels to their intended communication endpoints.