{ "id": "CVE-2023-35926", "sourceIdentifier": "security-advisories@github.com", "published": "2023-06-22T14:15:09.607", "lastModified": "2024-11-21T08:08:59.457", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "Backstage is an open platform for building developer portals. The Backstage scaffolder-backend plugin uses a templating library that requires sandbox, as it by design allows for code injection. The library used for this sandbox so far has been `vm2`, but in light of several past vulnerabilities and existing vulnerabilities that may not have a fix, the plugin has switched to using a different sandbox library. A malicious actor with write access to a registered scaffolder template could manipulate the template in a way that allows for remote code execution on the scaffolder-backend instance. This was only exploitable in the template YAML definition itself and not by user input data. This is vulnerability is fixed in version 1.15.0 of `@backstage/plugin-scaffolder-backend`." } ], "metrics": { "cvssMetricV31": [ { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.0, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.3, "impactScore": 6.0 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.9, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 3.1, "impactScore": 6.0 } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-94" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-94" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.15.0", "matchCriteriaId": "41D3145E-0089-49C3-AFAA-7994C26E230A" } ] } ] } ], "references": [ { "url": "https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070593c8949a", "source": "security-advisories@github.com", "tags": [ "Patch" ] }, { "url": "https://github.com/backstage/backstage/releases/tag/v1.15.0", "source": "security-advisories@github.com", "tags": [ "Release Notes" ] }, { "url": "https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr", "source": "security-advisories@github.com", "tags": [ "Vendor Advisory" ] }, { "url": "https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070593c8949a", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://github.com/backstage/backstage/releases/tag/v1.15.0", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes" ] }, { "url": "https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ] } ] }