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jupyter oauthenticator 授权机制不正确

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CVE编号

CVE-2020-26250

利用情况

暂无

补丁情况

N/A

披露时间

2020-12-02
漏洞描述
OAuthenticator is an OAuth login mechanism for JupyterHub. In oauthenticator from version 0.12.0 and before 0.12.2, the deprecated (in jupyterhub 1.2) configuration `Authenticator.whitelist`, which should be transparently mapped to `Authenticator.allowed_users` with a warning, is instead ignored by OAuthenticator classes, resulting in the same behavior as if this configuration has not been set. If this is the only mechanism of authorization restriction (i.e. no group or team restrictions in configuration) then all authenticated users will be allowed. Provider-based restrictions, including deprecated values such as `GitHubOAuthenticator.org_whitelist` are **not** affected. All users of OAuthenticator 0.12.0 and 0.12.1 with JupyterHub 1.2 (JupyterHub Helm chart 0.10.0-0.10.5) who use the `admin.whitelist.users` configuration in the jupyterhub helm chart or the `c.Authenticator.whitelist` configuration directly. Users of other deprecated configuration, e.g. `c.GitHubOAuthenticator.team_whitelist` are **not** affected. If you see a log line like this and expect a specific list of allowed usernames: "[I 2020-11-27 16:51:54.528 JupyterHub app:1717] Not using allowed_users. Any authenticated user will be allowed." you are likely affected. Updating oauthenticator to 0.12.2 is recommended. A workaround is to replace the deprecated `c.Authenticator.whitelist = ...` with `c.Authenticator.allowed_users = ...`. If any users have been authorized during this time who should not have been, they must be deleted via the API or admin interface, per the referenced documentation.
解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接
https://github.com/jupyterhub/oauthenticator/blob/master/docs/source/changelo...
https://github.com/jupyterhub/oauthenticator/commit/a4aac191c16cf6281f3d34661...
https://github.com/jupyterhub/oauthenticator/security/advisories/GHSA-384w-5v3f-q499
https://jupyterhub.readthedocs.io/en/1.2.2/getting-started/authenticators-use...
受影响软件情况
# 类型 厂商 产品 版本 影响面
1
运行在以下环境
应用 jupyter oauthenticator * From
(including)
0.12.0 		Up to
(excluding)
0.12.2
CVSS3评分 6.3
  • 攻击路径 网络
  • 攻击复杂度 高
  • 权限要求 低
  • 影响范围 已更改
  • 用户交互 无
  • 可用性 无
  • 保密性 高
  • 完整性 无
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CWE-ID 漏洞类型 CWE-863 授权机制不正确