Backstage is an open framework for building developer portals. Prior to 1.54.6, cloud storage catalog providers did not sufficiently validate object paths. A principal able to create or rename objects in a configured Azure Blob Storage or AWS S3 catalog source could cause catalog descriptors to be read from outside the intended storage boundary, limited to locations reachable with the backend's configured credentials.
This issue is fixed in 1.54.6.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
@backstage:plugin-catalog-backend-module-aws
@backstage:plugin-catalog-backend-module-azure
backstage:backstage
References 3
https://github.com/backstage/backstage/security/advisories/GHSA-xvh9-35w9-42m4
https://github.com/backstage/backstage/security/advisories/GHSA-xvh9-35w9-42m4
https://github.com/backstage/backstage/commit/47ddbd8b4a3efd812309f759c38f4877f…
https://github.com/backstage/backstage/commit/47ddbd8b4a3efd812309f759c38f4877fbd9e5ff
https://github.com/backstage/backstage/releases/tag/v1.54.6
https://github.com/backstage/backstage/releases/tag/v1.54.6