nextcloud openid_connect_user_backend 输入验证不恰当
CVE编号
CVE-2022-39338利用情况
暂无补丁情况
N/A披露时间
2022-11-26漏洞描述
user_oidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this vulnerability has only been shown to be exploitable in the Safari web browser. This issue has been addressed in version 1.2.1. Users are advised to upgrade. Users unable to upgrade should urge their users to avoid using the Safari web browser.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/nextcloud/security-advisories/security/advisories/GHSA-5fp... | |
| https://github.com/nextcloud/user_oidc/pull/496 | |
| https://hackerone.com/reports/1687410 |
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 | nextcloud | openid_connect_user_backend | * | Up to (excluding) 1.2.1 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 低
- 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
| CWE-ID | 漏洞类型 |
| CWE-20 | 输入验证不恰当 |
| CWE-79 | 在Web页面生成时对输入的转义处理不恰当（跨站脚本） |
Exp相关链接
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