CVE-2024-28233

HIGH8.1EPSS 0.11%

Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing

發布日:2024/3/28修改日:2024/4/3
也稱為:GHSA-7r3h-4ph8-w38gBIT-jupyterhub-2024-28233

描述

### Impact Affected configurations: - Single-origin JupyterHub deployments - JupyterHub deployments with user-controlled applications running on subdomains or peer subdomains of either the Hub or a single-user server. By tricking a user into visiting a malicious subdomain, the attacker can achieve an XSS directly affecting the former's session. More precisely, in the context of JupyterHub, this XSS could achieve the following: - Full access to JupyterHub API and user's single-user server, e.g. - Create and exfiltrate an API Token - Exfiltrate all files hosted on the user's single-user server: notebooks, images, etc. - Install malicious extensions. They can be used as a backdoor to silently regain access to victim's session anytime. ### Patches To prevent cookie-tossing: - Upgrade to JupyterHub 4.1 (both hub and user environment) - enable per-user domains via `c.JupyterHub.subdomain_host = "https://mydomain.example.org"` - set `c.JupyterHub.cookie_host_prefix_enabled = True` to enable domain-locked cookies or, if available (applies to earlier JupyterHub versions): - deploy jupyterhub on its own domain, not shared with any other services - enable per-user domains via `c.JupyterHub.subdomain_host = "https://mydomain.example.org"`

受影響套件(3)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1HIGH8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

參考連結(5)