CVE-2025-55013
Assemblyline 4 Service Client: Arbitrary Write through path traversal in Client code
- State
- Published
- Severity
- 4.2 Medium
- Published
- Aug 9, 2025
- Updated
- Aug 12, 2025
- Reserved
- Aug 4, 2025
Description
The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.2 Medium | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L | GitHub_M |
Weaknesses
- CWE-23 Relative Path Traversal
Affected Products
| Product | Versions |
|---|---|
assemblylineCybercentreCanada |
|
References
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