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地图 / Missing FILE-privilege enforcement in CONNECT file UDFs allows server-side file read and write

Missing FILE-privilege enforcement in CONNECT file UDFs allows server-side file read and write

访问控制 / 访问控制缺陷(通用) / #3836021

厂商
MariaDB
严重程度
中危 · CVSS 8.8
赏金
—
弱点
访问控制缺陷(通用)
研究员
@duongtt
披露日期
2026-10-07
资产
MariaDB Server & Connectors - Access control bypass
CVE
CVE-2024-27766

该报告还没有中文解读。

原文摘录

摘自原文(9774 字符中的一小部分)
- **What the bug lets you do.** With only `SELECT` privilege, read any file MariaDB can read (for example `/etc/passwd`, `my.cnf`, TLS private keys) and write files as the `mysql` OS user anywhere the process can write. - **Why that should not work.** Reading files from SQL normally requires the …
原文中的代码
SELECT LOAD_FILE('/tmp/secret.json');   -- NULL: plain has no FILE privilege
SELECT LOAD_FILE('/etc/passwd');        -- NULL: outside secure_file_priv (even a FILE user is blocked here)

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 MariaDB 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @duongtt · 版权归作者与 MariaDB 所有

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