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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXBnZjgtMjhnZy12cHI2
Path traversal
Impact
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.
Patches
The vulnerability is patched in the 0.6.3
release of @backstage/techdocs-common
.
For more information
If you have any questions or comments about this advisory:
- Open an issue in the Backstage repository
- Visit our chat, linked to in Backstage README
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXBnZjgtMjhnZy12cHI2
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 3 years ago
Updated: almost 2 years ago
CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Identifiers: GHSA-pgf8-28gg-vpr6, CVE-2021-32662
References:
- https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6
- https://nvd.nist.gov/vuln/detail/CVE-2021-32662
- https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208
- https://github.com/backstage/backstage/releases/tag/release-2021-05-27
- https://github.com/advisories/GHSA-pgf8-28gg-vpr6
Blast Radius: 12.3
Affected Packages
npm:@backstage/techdocs-common
Dependent packages: 4Dependent repositories: 79
Downloads: 2,946 last month
Affected Version Ranges: < 0.6.3
Fixed in: 0.6.3
All affected versions: 0.1.1, 0.2.0, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.3.7, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.5.0, 0.5.1, 0.6.0, 0.6.1, 0.6.2
All unaffected versions: 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.6.7, 0.6.8, 0.7.0, 0.7.1, 0.8.0, 0.8.1, 0.9.0, 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4, 0.10.5, 0.10.6, 0.10.7, 0.10.8, 0.11.0, 0.11.1, 0.11.2, 0.11.3, 0.11.4, 0.11.5, 0.11.6, 0.11.7, 0.11.8, 0.11.9, 0.11.10, 0.11.11, 0.11.12, 0.11.13, 0.11.14, 0.11.15