CVE-2022-23538

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When the scs-library-client is used to pull a container image, with authentication, the HTTP Authorization header sent by the client to the library service may be incorrectly leaked to an S3 backing storage provider. This occurs in a specific flow, where the library service redirects the client to a backing S3 storage server, to perform a multi-part concurrent download. Depending on site configuration, the S3 service may be provided by a third party. An attacker with access to the S3 service may be able to extract user credentials, allowing them to impersonate the user. The vulnerable multi-part concurrent download flow, with redirect to S3, is only used when communicating with a Singularity Enterprise 1.x installation, or third party server implementing this flow. Interaction with Singularity Enterprise 2.x, and Singularity Container Services (cloud.sylabs.io), does not trigger the vulnerable flow. We encourage all users to update. Users who interact with a Singularity Enterprise 1.x installation, using a 3rd party S3 storage service, are advised to revoke and recreate their authentication tokens within Singularity Enterprise. 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When the scs-library-client is used to pull a container image, with authentication, the HTTP Authorization header sent by the client to the library service may be incorrectly leaked to an S3 backing storage provider. This occurs in a specific flow, where the library service redirects the client to a backing S3 storage server, to perform a multi-part concurrent download. Depending on site configuration, the S3 service may be provided by a third party. An attacker with access to the S3 service may be able to extract user credentials, allowing them to impersonate the user. The vulnerable multi-part concurrent download flow, with redirect to S3, is only used when communicating with a Singularity Enterprise 1.x installation, or third party server implementing this flow. Interaction with Singularity Enterprise 2.x, and Singularity Container Services (cloud.sylabs.io), does not trigger the vulnerable flow. We encourage all users to update. Users who interact with a Singularity Enterprise 1.x installation, using a 3rd party S3 storage service, are advised to revoke and recreate their authentication tokens within Singularity Enterprise. There is no workaround available at this time."}, {"lang": "es", "value": "github.com/sylabs/scs-library-client es el cliente Go para el servicio de librer\u00eda de contenedores Singularity Container Services (SCS). Cuando se utiliza scs-library-client para extraer una imagen de contenedor, con autenticaci\u00f3n, el encabezado de autorizaci\u00f3n HTTP enviado por el cliente al servicio de librer\u00eda puede filtrarse incorrectamente a un proveedor de almacenamiento de respaldo S3. Esto ocurre en un flujo espec\u00edfico, donde el servicio de librer\u00eda redirige al cliente a un servidor de almacenamiento S3 de respaldo para realizar una descarga simult\u00e1nea de varias partes. Dependiendo de la configuraci\u00f3n del sitio, el servicio S3 puede ser proporcionado por un tercero. Un atacante con acceso al servicio S3 puede extraer las credenciales del usuario, lo que le permitir\u00e1 hacerse pasar por el usuario. El flujo de descarga simult\u00e1nea de varias partes vulnerable, con redireccionamiento a S3, solo se usa cuando se comunica con una instalaci\u00f3n de Singularity Enterprise 1.x o un servidor de terceros que implementa este flujo. La interacci\u00f3n con Singularity Enterprise 2.x y Singularity Container Services (cloud.sylabs.io) no desencadena el flujo vulnerable. Animamos a todos los usuarios a actualizar. Se recomienda a los usuarios que interact\u00faan con una instalaci\u00f3n de Singularity Enterprise 1.x, utilizando un servicio de almacenamiento S3 de terceros, que revoquen y vuelvan a crear sus tokens de autenticaci\u00f3n dentro de Singularity Enterprise. No hay ning\u00fan workaround en este momento."}], "id": "CVE-2022-23538", "lastModified": "2026-06-17T04:30:19.003", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 4.7, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-23538", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-03-10T20:59:54.584009Z", "version": "2.0.3"}}]}, "published": "2023-01-17T21:15:11.827", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/commit/68ac4cab5cda0afd8758ff5b5e2e57be6a22fcfa"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/commit/b5db2aacba6bf1231f42dd475cc32e6355ab47b2"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/commit/eebd7caaab310b1fa803e55b8fc1acd9dcd2d00c"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/security/advisories/GHSA-7p8m-22h4-9pj7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/commit/68ac4cab5cda0afd8758ff5b5e2e57be6a22fcfa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/commit/b5db2aacba6bf1231f42dd475cc32e6355ab47b2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/commit/eebd7caaab310b1fa803e55b8fc1acd9dcd2d00c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/sylabs/scs-library-client/security/advisories/GHSA-7p8m-22h4-9pj7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-522"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-522"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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