CVE-2023-42442: JumpServer session replays download without authentication
First published: Fri Sep 15 2023(Updated: )
JumpServer is an open source bastion host and a professional operation and maintenance security audit system. Starting in version 3.0.0 and prior to versions 3.5.5 and 3.6.4, session replays can download without authentication. Session replays stored in S3, OSS, or other cloud storage are not affected. The api `/api/v1/terminal/sessions/` permission control is broken and can be accessed anonymously. SessionViewSet permission classes set to `[RBACPermission | IsSessionAssignee]`, relation is or, so any permission matched will be allowed. Versions 3.5.5 and 3.6.4 have a fix. After upgrading, visit the api `$HOST/api/v1/terminal/sessions/?limit=1`. The expected http response code is 401 (`not_authenticated`).
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fit2cloud Jumpserver | >=3.0.0<3.5.5 | |
| Fit2cloud Jumpserver | >=3.6.0<3.6.4 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-42442?
CVE-2023-42442 is a vulnerability in JumpServer that allows session replays to be downloaded without authentication.
How does CVE-2023-42442 affect JumpServer?
CVE-2023-42442 affects JumpServer versions 3.0.0 to 3.5.5 and versions 3.6.0 to 3.6.4.
What is the severity of CVE-2023-42442?
CVE-2023-42442 has a severity rating of 5.3 (High).
How can I fix CVE-2023-42442?
To fix CVE-2023-42442, update your JumpServer installation to version 3.5.5 or higher if you are using versions 3.0.0 to 3.5.5, or update to version 3.6.4 or higher if you are using versions 3.6.0 to 3.6.4.
Where can I find more information about CVE-2023-42442?
You can find more information about CVE-2023-42442 on the official GitHub repository for JumpServer, including the code changes and security advisories.
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