CVE-2018-1002104 - Vulnerability Details - OpenCVE

Description

Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly.

Published: 2020-01-14

Score: 5.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Kubernetes

k8s.gcr.io/defaultbackend

affected

Version	Status	Constraints
`defaultbackend`	affected	< 1.5

Configuration 1 [-]

cpe:2.3:a:kubernetes:nginx_ingress_controller:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Workaround

Mask the /metrics endpoint with an Ingress rule so that metrics aren't exposed publicly. See https://github.com/kubernetes/ingress-nginx/issues/1733#issuecomment-358492359

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2022-4671	Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly.
Github GHSA	GHSA-p3x5-5xpx-9phm	Kubernetes ingress exposes sensitive information

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00436.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/kubernetes/ingress-nginx/pull/3125
https://nvd.nist.gov/vuln/detail/CVE-2018-1002104
https://www.cve.org/CVERecord?id=CVE-2018-1002104

History

No history.

Subscriptions

Kubernetes Nginx Ingress Controller

MITRE

Status: PUBLISHED

Assigner: kubernetes

Published: 2020-01-14T20:15:17.491Z

Updated: 2024-09-16T21:07:22.919Z

Reserved: 2018-12-05T00:00:00.000Z

Link: CVE-2018-1002104

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-01-14T21:15:16.350

Modified: 2024-11-21T03:40:38.820

Link: CVE-2018-1002104

Redhat

Severity : Low

Publid Date: 2020-01-15T00:00:00Z

Links: CVE-2018-1002104 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

{"containers": {"cna": {"affected": [{"product": "k8s.gcr.io/defaultbackend", "vendor": "Kubernetes", "versions": [{"lessThan": "1.5", "status": "affected", "version": "defaultbackend", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Alexandre Malucelli"}], "datePublic": "2018-09-25T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-215", "description": "CWE-215 Information Exposure Through Debug Information", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-01-14T20:15:17.000Z", "orgId": "a6081bf6-c852-4425-ad4f-a67919267565", "shortName": "kubernetes"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/kubernetes/ingress-nginx/pull/3125"}], "source": {"defect": ["https://github.com/kubernetes/ingress-nginx/issues/1733"], "discovery": "USER"}, "workarounds": [{"lang": "en", "value": "Mask the /metrics endpoint with an Ingress rule so that metrics aren't exposed publicly. See https://github.com/kubernetes/ingress-nginx/issues/1733#issuecomment-358492359"}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@kubernetes.io", "DATE_PUBLIC": "2018-09-25", "ID": "CVE-2018-1002104", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "k8s.gcr.io/defaultbackend", "version": {"version_data": [{"version_affected": "<", "version_name": "defaultbackend", "version_value": "1.5"}]}}]}, "vendor_name": "Kubernetes"}]}}, "credit": [{"lang": "eng", "value": "Alexandre Malucelli"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-215 Information Exposure Through Debug Information"}]}]}, "references": {"reference_data": [{"name": "https://github.com/kubernetes/ingress-nginx/pull/3125", "refsource": "CONFIRM", "url": "https://github.com/kubernetes/ingress-nginx/pull/3125"}]}, "source": {"defect": ["https://github.com/kubernetes/ingress-nginx/issues/1733"], "discovery": "USER"}, "work_around": [{"lang": "en", "value": "Mask the /metrics endpoint with an Ingress rule so that metrics aren't exposed publicly. See https://github.com/kubernetes/ingress-nginx/issues/1733#issuecomment-358492359"}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T12:47:56.919Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/kubernetes/ingress-nginx/pull/3125"}]}]}, "cveMetadata": {"assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565", "assignerShortName": "kubernetes", "cveId": "CVE-2018-1002104", "datePublished": "2020-01-14T20:15:17.491Z", "dateReserved": "2018-12-05T00:00:00.000Z", "dateUpdated": "2024-09-16T21:07:22.919Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:kubernetes:nginx_ingress_controller:*:*:*:*:*:*:*:*", "matchCriteriaId": "03C46310-16AE-475E-9CCA-53F78C896A1E", "versionEndExcluding": "1.5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly."}, {"lang": "es", "value": "Las versiones anteriores a 1.5 del back-end predeterminado de ingreso de Kubernetes, que maneja el tr\u00e1fico de ingreso no v\u00e1lido, expuso p\u00fablicamente las m\u00e9tricas de prometeus."}], "id": "CVE-2018-1002104", "lastModified": "2024-11-21T03:40:38.820", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "jordan@liggitt.net", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-01-14T21:15:16.350", "references": [{"source": "jordan@liggitt.net", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/kubernetes/ingress-nginx/pull/3125"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/kubernetes/ingress-nginx/pull/3125"}], "sourceIdentifier": "jordan@liggitt.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-215"}], "source": "jordan@liggitt.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}