cvelist/2021/32xxx/CVE-2021-32662.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-32662",
        "STATE": "PUBLIC",
        "TITLE": "TechDocs mkdocs.yml path traversal"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "backstage",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 0.6.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "backstage"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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`."
            }
        ]
    },
    "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": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6",
                "refsource": "CONFIRM",
                "url": "https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6"
            },
            {
                "name": "https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208",
                "refsource": "MISC",
                "url": "https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208"
            },
            {
                "name": "https://github.com/backstage/backstage/releases/tag/release-2021-05-27",
                "refsource": "MISC",
                "url": "https://github.com/backstage/backstage/releases/tag/release-2021-05-27"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-pgf8-28gg-vpr6",
        "discovery": "UNKNOWN"
    }
}