CVE-2022-2837 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00165.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Coredns.io Subscribe	Coredns Subscribe

Configuration 1 [-]

cpe:2.3:a:coredns.io:coredns:-:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-1027	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.
Github GHSA	GHSA-h828-v5pv-33qx	coreDNS vulnerable to Improper Restriction of Communication Channel to Intended Endpoints

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://bugzilla.redhat.com/show_bug.cgi?id=2118543
https://nvd.nist.gov/vuln/detail/CVE-2022-2837
https://www.cve.org/CVERecord?id=CVE-2022-2837

History

Fri, 07 Mar 2025 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2023-03-03T00:00:00.000Z

Updated: 2025-03-07T18:43:09.482Z

Reserved: 2022-08-16T00:00:00.000Z

Link: CVE-2022-2837

Vulnrichment

Updated: 2024-08-03T00:52:58.994Z

NVD

Status : Modified

Published: 2023-03-03T16:15:09.397

Modified: 2025-03-07T19:15:33.503

Link: CVE-2022-2837

Redhat

Severity : Moderate

Publid Date: 2022-08-16T00:00:00Z

Links: CVE-2022-2837 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2022-2837", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2025-03-07T18:43:09.482Z", "dateReserved": "2022-08-16T00:00:00.000Z", "datePublished": "2023-03-03T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2023-03-03T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "n/a", "product": "coreDNS", "versions": [{"version": "unknown", "status": "affected"}]}], "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2118543"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-923", "cweId": "CWE-923"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T00:52:58.994Z"}, "title": "CVE Program Container", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2118543", "tags": ["x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-601", "lang": "en", "description": "CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"}]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-03-07T18:42:22.857357Z", "id": "CVE-2022-2837", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-07T18:43:09.482Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2118543", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T00:52:58.994Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-2837", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-03-07T18:42:22.857357Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-601", "description": "CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-07T18:42:52.720Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "coreDNS", "versions": [{"status": "affected", "version": "unknown"}]}], "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2118543"}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-923", "description": "CWE-923"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2023-03-03T00:00:00.000Z"}}}, "cveMetadata": {"cveId": "CVE-2022-2837", "state": "PUBLISHED", "dateUpdated": "2025-03-07T18:43:09.482Z", "dateReserved": "2022-08-16T00:00:00.000Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2023-03-03T00:00:00.000Z", "assignerShortName": "redhat"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:coredns.io:coredns:-:*:*:*:*:*:*:*", "matchCriteriaId": "CCA8A3E2-1A14-4276-B8D9-463173E689D5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2022-2837", "lastModified": "2025-03-07T19:15:33.503", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2023-03-03T16:15:09.397", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Mitigation", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2118543"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Mitigation", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2118543"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-923"}], "source": "secalert@redhat.com", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-601"}], "source": "nvd@nist.gov", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-601"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Primary"}]}