gsd-2023-35926
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
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`.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2023-35926",
    "id": "GSD-2023-35926"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-35926"
      ],
      "details": "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`.",
      "id": "GSD-2023-35926",
      "modified": "2023-12-13T01:20:45.896081Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2023-35926",
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      "affects": {
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            {
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                        {
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                          "version_value": "\u003c 1.15.0"
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          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
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                "value": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)"
              }
            ]
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        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr",
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          "affected_versions": "All versions before 1.15.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-78",
            "CWE-937",
            "CWE-94"
          ],
          "date": "2023-06-22",
          "description": "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`.",
          "fixed_versions": [
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          "identifier": "CVE-2023-35926",
          "identifiers": [
            "GHSA-wg6p-jmpc-xjmr",
            "CVE-2023-35926"
          ],
          "not_impacted": "All versions starting from 1.15.0",
          "package_slug": "npm/@backstage/plugin-scaffolder-backend",
          "pubdate": "2023-06-21",
          "solution": "Upgrade to version 1.15.0 or above.",
          "title": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "urls": [
            "https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr",
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            "https://github.com/advisories/GHSA-wg6p-jmpc-xjmr"
          ],
          "uuid": "b838b48e-d66d-4050-90b3-ef13212b197f"
        }
      ]
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
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                "vulnerable": true
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        "description": {
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              "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`."
            }
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        },
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        "references": {
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            {
              "name": "https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr",
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              "name": "https://github.com/backstage/backstage/releases/tag/v1.15.0",
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      "impact": {
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            "version": "3.1"
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          "impactScore": 6.0
        }
      },
      "lastModifiedDate": "2023-06-29T20:54Z",
      "publishedDate": "2023-06-22T14:15Z"
    }
  }
}


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