{ "containers": { "cna": { "affected": [ { "product": "singularity", "vendor": "sylabs", "versions": [ { "status": "affected", "version": ">= 3.7.2, <= 3.7.3" } ] } ], "descriptions": [ { "lang": "en", "value": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-923", "description": "CWE-923: Improper Restriction of Communication Channel to Intended Endpoints", "lang": "en", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-07-22T06:06:44.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/sylabs/singularity/releases/tag/v3.7.4" }, { "name": "GLSA-202107-50", "tags": [ "vendor-advisory", "x_refsource_GENTOO" ], "url": "https://security.gentoo.org/glsa/202107-50" } ], "source": { "advisory": "GHSA-5mv9-q7fq-9394", "discovery": "UNKNOWN" }, "title": "Action Commands (run/shell/exec) Against Library URIs Ignore Configured Remote Endpoint", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32635", "STATE": "PUBLIC", "TITLE": "Action Commands (run/shell/exec) Against Library URIs Ignore Configured Remote Endpoint" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "singularity", "version": { "version_data": [ { "version_value": ">= 3.7.2, <= 3.7.3" } ] } } ] }, "vendor_name": "sylabs" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-923: Improper Restriction of Communication Channel to Intended Endpoints" } ] }, { "description": [ { "lang": "eng", "value": "CWE-20 Improper Input Validation" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394", "refsource": "CONFIRM", "url": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394" }, { "name": "https://github.com/sylabs/singularity/releases/tag/v3.7.4", "refsource": "MISC", "url": "https://github.com/sylabs/singularity/releases/tag/v3.7.4" }, { "name": "GLSA-202107-50", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202107-50" } ] }, "source": { "advisory": "GHSA-5mv9-q7fq-9394", "discovery": "UNKNOWN" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:25:31.038Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/sylabs/singularity/releases/tag/v3.7.4" }, { "name": "GLSA-202107-50", "tags": [ "vendor-advisory", "x_refsource_GENTOO", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202107-50" } ] } ] }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-32635", "datePublished": "2021-05-28T20:20:12.000Z", "dateReserved": "2021-05-12T00:00:00.000Z", "dateUpdated": "2024-08-03T23:25:31.038Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }