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CVE-2022-21697— SSRF vulnerability (requires authentication)

Quick assessment

Affected
jupyterhub jupyter-server-proxy
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Jupyter Server是Jupyter社区的一款用于为Jupyter Web应用提供后端服务的应用软件。 Jupyter Server Proxy 存在安全漏洞，该漏洞源于允许通过验证的客户端将请求代理给其他主机从而绕过安全检查。

CVSS 6.3 · Medium EPSS 1.10% · P65

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-21697

Vulnerability Information
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Vulnerability Title
SSRF vulnerability (requires authentication)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Jupyter Server 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jupyter Server是Jupyter社区的一款用于为Jupyter Web应用提供后端服务的应用软件。 Jupyter Server Proxy 存在安全漏洞，该漏洞源于允许通过验证的客户端将请求代理给其他主机从而绕过安全检查。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jupyterhub jupyter-server-proxy < 3.2.1 -

II. Public POCs for CVE-2022-21697

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III. Intelligence Information for CVE-2022-21697

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Patches & Fixes for CVE-2022-21697 (2)

Vendor Advisories for CVE-2022-21697 (1)

IV. Related Vulnerabilities

Same product: jupyter-server-proxy
Same vendor: jupyterhub
Same weakness: CWE-918