CVE-2020-26261

{"containers": {"cna": {"affected": [{"product": "systemdspawner", "vendor": "jupyterhub", "versions": [{"status": "affected", "version": "< 0.15"}]}], "descriptions": [{"lang": "en", "value": "jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-668", "description": "CWE-668: Exposure of Resource to Wrong Sphere", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-12-09T16:30:14.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"}, {"tags": ["x_refsource_MISC"], "url": "https://pypi.org/project/jupyterhub-systemdspawner/"}], "source": {"advisory": "GHSA-cg54-gpgr-4rm6", "discovery": "UNKNOWN"}, "title": "user-readable api tokens in systemd units", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-26261", "STATE": "PUBLIC", "TITLE": "user-readable api tokens in systemd units"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "systemdspawner", "version": {"version_data": [{"version_value": "< 0.15"}]}}]}, "vendor_name": "jupyterhub"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15"}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-668: Exposure of Resource to Wrong Sphere"}]}]}, "references": {"reference_data": [{"name": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6", "refsource": "CONFIRM", "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"}, {"name": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580", "refsource": "MISC", "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"}, {"name": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015", "refsource": "MISC", "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"}, {"name": "https://pypi.org/project/jupyterhub-systemdspawner/", "refsource": "MISC", "url": "https://pypi.org/project/jupyterhub-systemdspawner/"}]}, "source": {"advisory": "GHSA-cg54-gpgr-4rm6", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T15:56:03.813Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://pypi.org/project/jupyterhub-systemdspawner/"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-26261", "datePublished": "2020-12-09T16:30:14.000Z", "dateReserved": "2020-10-01T00:00:00.000Z", "dateUpdated": "2024-08-04T15:56:03.813Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "systemdspawner", "vendor": "jupyterhub", "versions": [{"status": "affected", "version": "< 0.15"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:jupyterhub:systemdspawner:*:*:*:*:*:*:*:*", "matchCriteriaId": "175655AE-2247-4426-8AE8-0AD5532FBC50", "versionEndExcluding": "0.15", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15"}, {"lang": "es", "value": "jupyterhub-systemdspawner permite que JupyterHub genere servidores de port\u00e1tiles de un solo usuario utilizando systemd.&#xa0;En jupyterhub-systemdspawner, versiones anteriores a 0.15, los tokens de la API de usuario emitidos a servidores de un solo usuario son especificados en el entorno de las unidades systemd.&#xa0;Estos tokens son incorrectamente accesibles para todos los usuarios.&#xa0;En particular, est\u00e1 afectado the-littlest-jupyterhub, que usa systemdspawner por defecto.&#xa0;Esto est\u00e1 parcheado en jupyterhub-systemdspawner versi\u00f3n v0.15"}], "id": "CVE-2020-26261", "lastModified": "2026-06-17T03:07:56.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 3.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 5.8, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-09T17:15:30.603", "references": [{"source": "security-advisories@github.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"}, {"source": "security-advisories@github.com", "tags": ["Product", "Third Party Advisory"], "url": "https://pypi.org/project/jupyterhub-systemdspawner/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://pypi.org/project/jupyterhub-systemdspawner/"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-668"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-668"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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