CVE-2022-21697: Jupyter server proxy SSRF Vulnerability Vulnerability
MODERATECVE-2022-21697 is a MODERATE (CVSS 6.3) ssrf vulnerability vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Jupyter server proxy libraries in the PyPI ecosystem. The issue involves ssrf vulnerability in jupyter-server-proxy. Remediation is available by upgrading affected packages to version 3.2.1.
CVE-2022-21697 at a Glance
Security Impact
CVSS: 6.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N).
How to Fix CVE-2022-21697
To remediate this vulnerability, upgrade all affected Jupyter server proxy dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
pip install jupyter-server-proxy>=3.2.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
pip show jupyter-server-proxyHow to Check if You Are Affected
To determine whether your Python environment is affected by CVE-2022-21697, inspect your installed packages using pip:
pip show jupyter-server-proxyAnalyze the terminal output to locate any version of Jupyter server proxy in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.2.1), your application is affected.
Note: The pip show jupyter-server-proxy command checks currently installed packages in your active Python environment.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Jupyter server proxy, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2022-21697 Affected Jupyter server proxy Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
jupyter-server-proxy
|
PyPI |
< 3.2.1
|
3.2.1
|
References
Frequently Asked Questions
What is CVE-2022-21697?
Which Jupyter server proxy versions are affected?
What version fixes CVE-2022-21697?
Is jupyter-server-proxy affected?
What is the CVSS score of CVE-2022-21697?
What CWE is associated with CVE-2022-21697?
How can I check PyPI dependencies for CVE-2022-21697?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-gcv9-6737-pjqw",
"modified" : "2024-09-24T18:39:15Z",
"published" : "2022-01-27T16:24:26Z",
"aliases" : [ "CVE-2022-21697" ],
"summary" : "SSRF vulnerability in jupyter-server-proxy",
"details" : "### Impact\n\n**What kind of vulnerability is it?** Server-Side Request Forgery ( SSRF )\n\n**Who is impacted?** Any user deploying Jupyter Server or Notebook with jupyter-proxy-server extension enabled. \n\nA lack of input validation allowed 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.\n\n\n### Patches\n\n_Has the problem been patched? What versions should users upgrade to?_\n\nUpgrade to 3.2.1, or apply the patch https://github.com/jupyterhub/jupyter-server-proxy/compare/v3.2.0...v3.2.1.patch\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open a topic [on our forum](https://discourse.jupyter.org)\n* Email the Jupyter security team at [security@ipython.org](mailto:security@ipython.org)\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N"
}, {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "jupyter-server-proxy"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "3.2.1"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 3.2.0"
}
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/jupyterhub/jupyter-server-proxy/security/advisories/GHSA-gcv9-6737-pjqw"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-21697"
}, {
"type" : "WEB",
"url" : "https://github.com/jupyterhub/jupyter-server-proxy/commit/fd31930bacd12188c448c886e0783529436b99eb"
}, {
"type" : "WEB",
"url" : "https://github.com/jupyterhub/jupyter-server-proxy"
}, {
"type" : "WEB",
"url" : "https://github.com/jupyterhub/jupyter-server-proxy/compare/v3.2.0...v3.2.1.patch"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/jupyter-server-proxy/PYSEC-2022-16.yaml"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-918" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2022-01-25T20:57:43Z",
"nvd_published_at" : "2022-01-25T14:15:00Z"
}
}