brizy brizy-page_builder 对路径名的限制不恰当（路径遍历）
CVE编号
CVE-2021-38346利用情况
暂无补丁情况
N/A披露时间
2021-10-15漏洞描述
The Brizy Page Builder plugin <= 2.3.11 for WordPress allowed authenticated users to upload executable files to a location of their choice using the brizy_create_block_screenshot AJAX action. The file would be named using the id parameter, which could be prepended with "../" to perform directory traversal, and the file contents were populated via the ibsf parameter, which would be base64-decoded and written to the file. While the plugin added a .jpg extension to all uploaded filenames, a double extension attack was still possible, e.g. a file named shell.php would be saved as shell.php.jpg, and would be executable on a number of common configurations.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://www.wordfence.com/blog/2021/10/multiple-vulnerabilities-in-brizy-page... |
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 | brizy | brizy-page_builder | * | Up to (including) 2.3.11 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-22 | 对路径名的限制不恰当（路径遍历） |
| CWE-434 | 危险类型文件的不加限制上传 |
| CWE-79 | 在Web页面生成时对输入的转义处理不恰当（跨站脚本） |
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