Flow-Like: Azure invoke presign grants app content write SAS to ExecuteEvents-only users
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Rheosoph | flow-like | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Rheosoph | Flow-like |
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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% (0.679% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Rheosoph
Rheosoph flow-like |
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| Vendors & Products |
Rheosoph
Rheosoph flow-like |
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| Description | Flow-Like is a platform for building end-to-end use cases. Prior to version 1.0.4, `GET /api/v1/apps/{app_id}/invoke/presign` grants Azure Blob Storage SAS credentials with write and delete access to app content to any app member that has `ExecuteEvents`, even when that member lacks `ReadFiles` and `WriteFiles`. The route treats file permissions as optional after the `ExecuteEvents` gate. When the caller has neither file permission, it selects `CredentialsAccess::InvokeNone`. In the Azure credential provider, `InvokeNone` still mints a `content_sas_token` for `apps/{app_id}` with `sp=rwdl`, plus user-content and log SAS tokens. The returned shared credential is enough for the low-privilege caller to directly write or delete blobs under the app content prefix. Version 1.0.4 patches the issue. Flow-Like Studio and the hosted Flow-Like Web App are not affected. These deployments use AWS-backed storage. Self-hosted deployments are only affected if they use Azure Blob Storage as the storage backend. In affected deployments, the issue only applies to authenticated app members who have workflow execution permissions but should not have app file write/delete permissions. Users of affected self-hosted Azure deployments should update to version 1.0.4 or the latest dev branch. | |
| Title | Flow-Like: Azure invoke presign grants app content write SAS to ExecuteEvents-only users | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV4_0
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