CVE-2022-21697

SSRF vulnerability (requires authentication)

Description

Jupyter Server Proxy is a Jupyter notebook server extension to proxy web services. Versions of Jupyter Server Proxy prior to 3.2.1 are vulnerable to Server-Side Request Forgery (SSRF). Any user deploying Jupyter Server or Notebook with jupyter-proxy-server extension enabled is affected. A lack of input validation allows authenticated clients to proxy requests to other hosts, bypassing the `allowed_hosts` check. Because authentication is required, which already grants permissions to make the same requests via kernel or terminal execution, this is considered low to moderate severity. Users may upgrade to version 3.2.1 to receive a patch or, as a workaround, install the patch manually.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.40%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: jupyterhub jupyter-server-proxy
Published at:
Updated at:

References

Link Tags
https://github.com/jupyterhub/jupyter-server-proxy/security/advisories/GHSA-gcv9-6737-pjqw third party advisory
https://github.com/jupyterhub/jupyter-server-proxy/commit/fd31930bacd12188c448c886e0783529436b99eb third party advisory patch
https://github.com/jupyterhub/jupyter-server-proxy/compare/v3.2.0...v3.2.1.patch third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-21697?
CVE-2022-21697 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21697?
To fix CVE-2022-21697, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21697 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-21697 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21697?
CVE-2022-21697 affects jupyterhub jupyter-server-proxy.
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