oauth2_proxy_project oauth2_proxy 指向未可信站点的url重定向（开放重定向）

CVE编号

CVE-2021-21291

利用情况

暂无

补丁情况

N/A

披露时间

2021-02-03

漏洞描述

OAuth2 Proxy is an open-source reverse proxy and static file server that provides authentication using Providers (Google, GitHub, and others) to validate accounts by email, domain or group. In OAuth2 Proxy before version 7.0.0, for users that use the whitelist domain feature, a domain that ended in a similar way to the intended domain could have been allowed as a redirect. For example, if a whitelist domain was configured for ".example.com", the intention is that subdomains of example.com are allowed. Instead, "example.com" and "badexample.com" could also match. This is fixed in version 7.0.0 onwards. As a workaround, one can disable the whitelist domain feature and run separate OAuth2 Proxy instances for each subdomain.

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/oauth2-proxy/oauth2-proxy/commit/780ae4f3c99b579cb2ea98451...
https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.0.0
https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-4mf2-f3wh-gvf2
https://pkg.go.dev/github.com/oauth2-proxy/oauth2-proxy/v7

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	oauth2_proxy_project	oauth2_proxy	*		Up to (excluding) 7.0.0

CVSS3评分 6.1

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 无
• 影响范围 已更改
• 用户交互 需要
• 可用性 无
• 保密性 低
• 完整性 低

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CWE-ID 漏洞类型 CWE-601 指向未可信站点的URL重定向（开放重定向）