GSD-2021-32662

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2021-32662",
    "description": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage\u0027s TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`.",
    "id": "GSD-2021-32662"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-32662"
      ],
      "details": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage\u0027s TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`.",
      "id": "GSD-2021-32662",
      "modified": "2023-12-13T01:23:09.018908Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-32662",
        "STATE": "PUBLIC",
        "TITLE": "TechDocs mkdocs.yml path traversal"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "backstage",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 0.6.3"
                        }
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
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          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
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          {
            "name": "https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6",
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          },
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            "url": "https://github.com/backstage/backstage/releases/tag/release-2021-05-27"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-pgf8-28gg-vpr6",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.6.3",
          "affected_versions": "All versions before 0.6.3",
          "cvss_v2": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-22",
            "CWE-937"
          ],
          "date": "2021-06-10",
          "description": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage\u0027s TechDocs. In `@backstage/techdocs-common`, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`.",
          "fixed_versions": [
            "0.6.3"
          ],
          "identifier": "CVE-2021-32662",
          "identifiers": [
            "CVE-2021-32662",
            "GHSA-pgf8-28gg-vpr6"
          ],
          "not_impacted": "All versions starting from 0.6.3",
          "package_slug": "npm/@backstage/techdocs-common",
          "pubdate": "2021-06-03",
          "solution": "Upgrade to version 0.6.3 or above.",
          "title": "Path Traversal",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-32662"
          ],
          "uuid": "5d1a5c67-ecc2-4402-b48c-8a99ad037caf"
        }
      ]
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.6.3",
                "vulnerable": true
              }
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              "value": "Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage\u0027s TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, a malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`."
            }
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              "tags": [
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              "url": "https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208"
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              "name": "https://github.com/backstage/backstage/releases/tag/release-2021-05-27",
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              ],
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-06-21T14:21Z",
      "publishedDate": "2021-06-03T22:15Z"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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