Auth bypass in Jupyter Server Proxy
CVE-2024-28179
Jupyter Server Proxy allows users to run arbitrary external processes alongside their Jupyter notebook servers and provides authenticated web access. Prior to versions 3.2.3 and 4.1.1, Jupyter Server Proxy did not check user authentication appropriately when proxying websockets, allowing unauthenticated access to anyone who had network access to the Jupyter server endpoint. This vulnerability can allow unauthenticated remote access to any websocket endpoint set up to be accessible via Jupyter Server Proxy. In many cases, this leads to remote unauthenticated arbitrary code execution, due to how affected instances use websockets. The websocket endpoints exposed by `jupyter_server` itself is not affected. Projects that do not rely on websockets are also not affected. Versions 3.2.3 and 4.1.1 contain a fix for this issue.
Vulnerability class: Broken Authentication
EPSS: 0.010 (59.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Jupyter Jupyter_server_proxy
- Jupyterhub Jupyter-server-proxy — versions >= 4.0.0, < 4.1.1, < 3.2.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-28179?
- CVE-2024-28179 is a critical-severity vulnerability in Jupyter Server Proxy, classified under Missing Authentication for Critical Function. CVSS score: 9.0/10. Published 2024-03-20.
- How severe is CVE-2024-28179?
- Critical severity. CVSS v3 base score is 9.0 out of 10.
- Is CVE-2024-28179 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.