CVE-2021-41151
In affected versions A malicious actor could read sensitive files from the environment where Scaffolder Tasks are run.
Does this matter?
Lower severity and a low EPSS score (1.31%). Track it; it rarely justifies an emergency change on its own.
Description
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`.
- CVSS 3.1
- 4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.31% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- linuxfoundation/backstage
- Source
- security-advisories@github.com
References
- https://github.com/backstage/backstage/commit/6968962c920508eae19a4c1c200fa2c8980a4006Patch, Third Party Advisory
- https://github.com/backstage/backstage/security/advisories/GHSA-pvv8-8fx9-h673Third Party Advisory
- https://github.com/backstage/backstage/commit/6968962c920508eae19a4c1c200fa2c8980a4006Patch, Third Party Advisory
- https://github.com/backstage/backstage/security/advisories/GHSA-pvv8-8fx9-h673Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.