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CVE-2021-41151GHSA-PVV8-8FX9-H673

Path Traversal in @backstage/plugin-scaffolder-backend

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.15.9
None on Exploit-DB, Metasploit or GitHub

Summary

Backstage is an open platform for building developer portals. In affected versions A malicious actor could read sensitive files from the environment where Scaffolder Tasks are run. The attack is executed by crafting a custom Scaffolder template with a `github:publish:pull-request` action and a particular source path. When the template is executed the sensitive files would be included in the published pull request. This vulnerability is mitigated by the fact that an attacker would need access to create and register templates in the Backstage catalog, and that the attack is very visible given that the exfiltration happens via a pull request. The vulnerability is patched in the `0.15.9` release of `@backstage/plugin-scaffolder-backend`.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • backstage backstage

    From 0.9.4 · fixed in 0.15.9

  • @backstage/plugin-scaffolder-backendnpm

    From 0.9.4 · fixed in 0.15.9

References 2

GitHub · backstage/backstage