一、 漏洞 CVE-2021-21411 基础信息
漏洞标题
OAuth2-Proxy中的授权错误
来源：AIGC 神龙大模型
漏洞描述信息
OAuth2-Proxy中的授权错误
来源：AIGC 神龙大模型
CVSS信息
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
来源：AIGC 神龙大模型
漏洞类别
N/A
来源：AIGC 神龙大模型
漏洞标题
Incorrect authorization in OAuth2-Proxy
来源：美国国家漏洞数据库 NVD
漏洞描述信息
OAuth2-Proxy is an open source reverse proxy that provides authentication with Google, Github or other providers. The `--gitlab-group` flag for group-based authorization in the GitLab provider stopped working in the v7.0.0 release. Regardless of the flag settings, authorization wasn't restricted. Additionally, any authenticated users had whichever groups were set in `--gitlab-group` added to the new `X-Forwarded-Groups` header to the upstream application. While adding GitLab project based authorization support in #630, a bug was introduced where the user session's groups field was populated with the `--gitlab-group` config entries instead of pulling the individual user's group membership from the GitLab Userinfo endpoint. When the session groups where compared against the allowed groups for authorization, they matched improperly (since both lists were populated with the same data) so authorization was allowed. This impacts GitLab Provider users who relies on group membership for authorization restrictions. Any authenticated users in your GitLab environment can access your applications regardless of `--gitlab-group` membership restrictions. This is patched in v7.1.0. There is no workaround for the Group membership bug. But `--gitlab-project` can be set to use Project membership as the authorization checks instead of groups; it is not broken.
来源：美国国家漏洞数据库 NVD
CVSS信息
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
来源：美国国家漏洞数据库 NVD
漏洞类别
授权机制不正确
来源：美国国家漏洞数据库 NVD
漏洞标题
OAuth2-Proxy 访问控制错误漏洞
来源：中国国家信息安全漏洞库 CNNVD
漏洞描述信息
OAuth2 Proxy是一款能够提供与Google、Github或其他提供商进行身份验证的反向代理。 OAuth2-Proxy 存在访问控制错误漏洞，该漏洞源于授权都没有受到限制。
来源：中国国家信息安全漏洞库 CNNVD
CVSS信息
N/A
来源：中国国家信息安全漏洞库 CNNVD
漏洞类别
授权问题
来源：中国国家信息安全漏洞库 CNNVD
二、漏洞 CVE-2021-21411 的公开POC
# POC 描述 源链接 神龙链接
三、漏洞 CVE-2021-21411 的情报信息