ID4me feature of OpenID connect app available even when disabled
访问控制 / 访问控制缺陷(通用) / #2376929
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原文摘录
摘自原文(4261 字符中的一小部分)
Summary: It is possible to register a new account on any Nextcloud server that has user_oidc enabled by just opening `/apps/user_oidc/id4me` as unauthenticated user. This is especially problematic given apps such as Nextcloud Talk enable accessing instance wide chat rooms.
原文中的代码
export default {
async fetch(request, env, ctx) {
const { pathname } = new URL(request.url);
//return new Response("disabled");
if(pathname == "/.well-known/openid-configuration") {
return new …默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 Nextcloud 所有。
时间线
- 报告提交
- 公开披露
阅读 HackerOne 原文 ↗作者 @lukasreschke · 版权归作者与 Nextcloud 所有