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
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