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Javier Provecho, member of the TCCT (Telefonica Cloud & Cybersecurity Tech better known as ElevenPaths) SRE team discovered a vulnerability regarding Harbor’s v2 API.
The catalog’s registry v2 api is exposed on an unauthenticated path. The current catalog API path is served at the following path and it requires to be authenticated as an admin.
GET /v2/_catalog
However, the authorization can be bypassed by using the following path
GET /v2/_catalog/
Patches
If your product uses the affected releases of Harbor, update to either version v2.1.2 or v2.0.5 to fix this issue immediately
Impact
Javier Provecho, member of the TCCT (Telefonica Cloud & Cybersecurity Tech better known as ElevenPaths) SRE team discovered a vulnerability regarding Harbor’s v2 API.
The catalog’s registry v2 api is exposed on an unauthenticated path. The current catalog API path is served at the following path and it requires to be authenticated as an admin.
GET /v2/_catalog
However, the authorization can be bypassed by using the following path
GET /v2/_catalog/
Patches
If your product uses the affected releases of Harbor, update to either version v2.1.2 or v2.0.5 to fix this issue immediately
https://github.com/goharbor/harbor/releases/tag/v2.1.2
https://github.com/goharbor/harbor/releases/tag/v2.0.5
Workarounds
If you cannot access a patched release, it can be mitigated by disabling that API. For example, redirecting it to a 404 sink hole in the ingress.
For more information
If you have any questions or comments about this advisory, contact cncf-harbor-security@lists.cncf.io
View our security policy at https://github.com/goharbor/harbor/security/policy
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29662