Vulnerability · Published Jun 30, 2023 · Assigned by Temporal
CVE-2023-3485Insecure Default Authorization in Temporal Server
Low 3.0
In plain English
A low-severity incorrect authorization in Temporal Server from Temporal Technologies Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Insecure defaults in open-source Temporal Server before version 1.20 on all platforms allows an attacker to craft a task token with access to a namespace other than the one specified in the request. Creation of this task token must be done outside of the normal Temporal server flow. It requires the namespace UUID and information from the workflow history for the target namespace. Under these conditions, it is possible to interfere with pending tasks in other namespaces, such as marking a task failed or completed. If a task is targeted for completion by the attacker, the targeted namespace must also be using the same data converter configuration as the initial, valid, namespace for the task completion payload to be decoded by workers in the target namespace.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | go.temporal.io/server | 1.20.0 | GO-2023-1879 |
| Go | go.temporal.io/server | 1.20.0 | GHSA-gm2g-2xr9-pxxj |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Temporal Technologies Inc. | Temporal Server | 1.9.1 – before 1.20 |
Weakness: CWE-863, CWE-1188 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L