OpenStack Blazar Lease API Authorization Bypass Enables Authenticated Lease Modification
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| OpenStack | Blazar | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Openstack | Blazar |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.406% probability within 30 days)
| Link | Providers |
|---|---|
| https://launchpad.net/bugs/2162719 |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Openstack
Openstack blazar |
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| Vendors & Products |
Openstack
Openstack blazar |
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| Title | OpenStack Blazar Lease API Authorization Bypass Enables Authenticated Lease Modification |
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| Description | In OpenStack Blazar before 17.0.1, the V2 lease API does not enforce object-level authorization on its update and delete operations (PUT /v2/leases/{lease_id} and DELETE /v2/leases/{lease_id}). The policy authorize() wrapper attempts to load the target lease to build the authorization target from its owner, but it looks up the lease under the keyword "lease_id" whereas the controller methods name the parameter "id" (and the wsme_pecan.wsexpose wrapper delivers it positionally). The lookup returns None, and thus authorization falls back to the requesting user's own project_id/user_id instead of the target lease owner. Any authenticated user who knows a lease ID can therefore modify or delete leases belonging to other users and projects, bypassing the intended ownership check. | |
| Weaknesses | CWE-1025 | |
| References |
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| Metrics |
cvssV4_0
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