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Security Advisories: GSA_kwCzR0hTQS03aHY4LTNmcjktajJods4AAxo8
Cross site scripting Vulnerability in backstage Software Catalog
Impact
This vulnerability allows a malicious actor with access to add or modify content in an instance of the Backstage software catalog to inject script URLs in the entities stored in the catalog. If users of the catalog then click on said URLs, that can lead to an XSS attack.
Patches
This vulnerability has been patched in both the frontend and backend implementations. The default Link
component from @backstage/core-components
will now reject javascript:
URLs, and there is a global override of window.open
to do the same.
In addition the catalog model as well as the catalog backend now has additional validation built in that prevents javascript:
URLs in known annotations.
Workarounds
The general practice of limiting access to modifying catalog content and requiring code reviews greatly helps mitigate this vulnerability.
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 the Backstage README
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS03aHY4LTNmcjktajJods4AAxo8
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 year ago
Updated: about 1 year ago
CVSS Score: 6.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
Identifiers: GHSA-7hv8-3fr9-j2hv, CVE-2023-25571
References:
- https://github.com/backstage/backstage/security/advisories/GHSA-7hv8-3fr9-j2hv
- https://nvd.nist.gov/vuln/detail/CVE-2023-25571
- https://github.com/backstage/backstage/commit/3d1371954512f7fa8bd0e2d357e00eada2c3e8a8
- https://github.com/advisories/GHSA-7hv8-3fr9-j2hv
Blast Radius: 18.3
Affected Packages
npm:@backstage/plugin-catalog-backend
Dependent packages: 50Dependent repositories: 437
Downloads: 187,701 last month
Affected Version Ranges: < 1.7.2
Fixed in: 1.7.2
All affected versions: 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.3.0, 0.4.0, 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.6.7, 0.7.0, 0.7.1, 0.8.0, 0.8.1, 0.8.2, 0.9.0, 0.9.1, 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4, 0.11.0, 0.12.0, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.13.4, 0.13.5, 0.13.6, 0.13.7, 0.13.8, 0.14.0, 0.15.0, 0.16.0, 0.17.0, 0.17.1, 0.17.2, 0.17.3, 0.17.4, 0.18.0, 0.19.0, 0.19.1, 0.19.2, 0.19.3, 0.19.4, 0.20.0, 0.21.0, 0.21.1, 0.21.2, 0.21.3, 0.21.4, 0.21.5, 0.22.0, 0.23.0, 0.23.1, 0.24.0, 1.0.0, 1.1.0, 1.1.1, 1.1.2, 1.2.0, 1.3.0, 1.3.1, 1.4.0, 1.5.0, 1.5.1, 1.6.0, 1.7.0, 1.7.1
All unaffected versions: 1.7.2, 1.8.0, 1.9.0, 1.9.1, 1.10.0, 1.11.0, 1.12.0, 1.12.1, 1.12.2, 1.12.3, 1.12.4, 1.13.0, 1.13.1, 1.13.2, 1.13.3, 1.14.0, 1.15.0, 1.16.0, 1.16.1, 1.16.2, 1.17.0, 1.17.1, 1.17.2, 1.17.3, 1.18.0, 1.19.0, 1.20.0, 1.21.0, 1.21.1
npm:@backstage/catalog-model
Dependent packages: 359Dependent repositories: 496
Downloads: 484,273 last month
Affected Version Ranges: < 1.2.0
Fixed in: 1.2.0
All affected versions: 0.1.1, 0.2.0, 0.3.0, 0.3.1, 0.4.0, 0.5.0, 0.6.0, 0.6.1, 0.7.0, 0.7.1, 0.7.2, 0.7.3, 0.7.4, 0.7.5, 0.7.6, 0.7.7, 0.7.8, 0.7.9, 0.7.10, 0.8.0, 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.9.5, 0.9.6, 0.9.7, 0.9.8, 0.9.9, 0.9.10, 0.10.0, 0.10.1, 0.11.0, 0.12.0, 0.12.1, 0.13.0, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5
All unaffected versions: 1.2.0, 1.2.1, 1.3.0, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5
npm:@backstage/core-components
Dependent packages: 450Dependent repositories: 455
Downloads: 337,231 last month
Affected Version Ranges: < 0.12.4
Fixed in: 0.12.4
All affected versions: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.2.0, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.4.0, 0.4.1, 0.4.2, 0.5.0, 0.6.0, 0.6.1, 0.7.0, 0.7.1, 0.7.2, 0.7.3, 0.7.4, 0.7.5, 0.7.6, 0.8.0, 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5, 0.8.6, 0.8.7, 0.8.8, 0.8.9, 0.8.10, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.9.5, 0.10.0, 0.11.0, 0.11.1, 0.11.2, 0.12.0, 0.12.1, 0.12.2, 0.12.3
All unaffected versions: 0.12.4, 0.12.5, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.13.4, 0.13.5, 0.13.6, 0.13.7, 0.13.8, 0.13.9, 0.13.10, 0.14.0, 0.14.1, 0.14.2, 0.14.3, 0.14.4, 0.14.5, 0.14.6