CVE-2021-36156

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal such as ae ../../sensitive/path/in/deployment pathname, then Loki will attempt to parse a rules file at that location and include some of the contents in the error message."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-09-07T19:35:11.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/grafana/loki/pull/4020#issue-694377133"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/grafana/loki/releases/tag/v2.3.0"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-36156", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal such as ae ../../sensitive/path/in/deployment pathname, then Loki will attempt to parse a rules file at that location and include some of the contents in the error message."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/grafana/loki/pull/4020#issue-694377133", "refsource": "MISC", "url": "https://github.com/grafana/loki/pull/4020#issue-694377133"}, {"name": "https://github.com/grafana/loki/releases/tag/v2.3.0", "refsource": "MISC", "url": "https://github.com/grafana/loki/releases/tag/v2.3.0"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:47:43.938Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/grafana/loki/pull/4020#issue-694377133"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/grafana/loki/releases/tag/v2.3.0"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-36156", "datePublished": "2021-08-03T14:12:11.000Z", "dateReserved": "2021-07-05T00:00:00.000Z", "dateUpdated": "2024-08-04T00:47:43.938Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:grafana:loki:*:*:*:*:*:*:*:*", "matchCriteriaId": "7ADC302F-5EE7-411F-93E0-A241D0E3BB95", "versionEndIncluding": "2.2.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal such as ae ../../sensitive/path/in/deployment pathname, then Loki will attempt to parse a rules file at that location and include some of the contents in the error message."}, {"lang": "es", "value": "Se ha detectado un problema en Grafana Loki versiones hasta 2.2.1. El valor del encabezado X-Scope-OrgID es usado para dise\u00f1ar las rutas de los archivos de reglas, y si se dise\u00f1a para realizar un salto de directorio como ae ../../sensitive/path/in/deployment pathname, Loki intentar\u00e1 entonces analizar un archivo de reglas en esa ubicaci\u00f3n e incluir\u00e1 parte del contenido en el mensaje de error"}], "id": "CVE-2021-36156", "lastModified": "2026-06-17T03:58:25.737", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-03T15:15:08.623", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/grafana/loki/pull/4020#issue-694377133"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/grafana/loki/releases/tag/v2.3.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/grafana/loki/pull/4020#issue-694377133"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/grafana/loki/releases/tag/v2.3.0"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "loki: Path traversal in Grafana Loki", "id": "2183161", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2183161"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-22", "details": ["An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal such as ae ../../sensitive/path/in/deployment pathname, then Loki will attempt to parse a rules file at that location and include some of the contents in the error message.", "A flaw was found in Grafana Loki that could allow a remote attacker to traverse directories on the system, caused by improper input validation by the X-Scope-OrgID header value. An attacker could send a specially-crafted URL request containing \"dot dot\" sequences (/../) to view some of the contents in the error message."], "name": "CVE-2021-36156", "package_state": [{"cpe": "cpe:/a:redhat:logging:5", "fix_state": "Not affected", "package_name": "openshift-logging/loki-rhel8-operator", "product_name": "Logging Subsystem for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:service_mesh:2.1", "fix_state": "Will not fix", "package_name": "servicemesh-grafana", "product_name": "OpenShift Service Mesh 2.1"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/acm-grafana-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Will not fix", "package_name": "openshift4/ose-grafana", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2021-08-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-36156\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-36156\nhttps://github.com/advisories/GHSA-grj5-8x6q-hc9q"], "statement": "This is a pathname parsing issue in Grafana Loki, which we don't ship in Red Hat Enterprise Linux - 8 and 9. Hence, not-affected.", "threat_severity": "Moderate"}

{}