Attacker Value

Unknown

Symantec Web Gateway upload_file Remote Code Execution Vulnerability

Attacker Value

Unknown

(1 user assessed)

Exploitability

Unknown

(1 user assessed)

User Interaction

Unknown

Privileges Required

Unknown

Attack Vector

Unknown

Symantec Web Gateway upload_file Remote Code Execution Vulnerability

Disclosure Date: May 21, 2012 •

CVE-2012-0299

MITRE ATT&CK

Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Metasploit Module

exploit/linux/http/symantec_web_gateway_file_upload

Description

The file-management scripts in the management GUI in Symantec Web Gateway 5.0.x before 5.0.3 allow remote attackers to upload arbitrary code to a designated pathname, and possibly execute this code, via unspecified vectors.

Add Assessment

wchen-r7 (173)

September 12, 2019 6:07pm UTC (4 years ago)•Edited 3 years ago

Technical Analysis

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations
of Symantec Web Gateway. Authentication is not required to exploit this vulnerability.

The specific flaw exists because Symantec Web Gateway allows unauthenticated users to upload a file
while preserving the file extension. This allows users to upload additional script files that can
be used to execute remote code from user supplied commands under the context of the webserver.

Details

blocked_file

<?php
	include_once("config/conf.php");
	include_once("config/db.php");
	include_once("includes/util_functions.php");


	if (isset($_POST['submitted']))
	{
		$updated = true;
		unescape_form_vals(); // remove slashes form values	as we are displaying only

		$new_image = $_FILES['new_image'];
		$before_filename = $_POST['before_filename'];
		$after_filename = $_POST['after_filename'];

		$image_query = "select value from mi5_blockpagemsg where name='image_name'";
		$image_result = @mysql_query($image_query);
		$image_row = @mysql_fetch_assoc($image_result);
		$old_image_name = $image_row['value'];
		@mysql_free_result($image_result);
		$image_name = $old_image_name;
		$image_url = $upload_image_url . "/". $image_name;

		if ($new_image['error'] == UPLOAD_ERR_OK && $new_image['size'] > 0) // file is uploaded
		{
			$return_arr = upload_file($new_image, $upload_image_path_temp, "temp");
			if ($return_arr['uploaded'])
			{
				$image_name = $return_arr['new_file_name'];
				$image_url = $upload_image_url_temp . "/". $image_name;
			}
		}
	}

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Blocked File Download</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" href="styles/mi5.css" />
</head>

<body>
<div id="mainContent">

<div id="mainText">
<?php

				if ($image_name == '')
				{
					$image_url = "images/mi5.gif";
				}

			?>
              <img src="<?php echo $image_url . "?t=".time(); ?>" alt="Symantec Defense Centre" style="border: 1px solid #ddd;" /> <hr noshade="noshade" size="1" style="margin-bottom: 10px;" />
<table><tr><!--<td valign="top" style="width: 120px;">

  <p><a href="javascript:history.go(-1);">&laquo; Previous Page</a></p>

</td>-->

<td style="padding-left: 15px; border-left: 1px solid #999;">
<h3>Symantec Enterprise Spygate</h3>
<h1>Downloading this file is prohibited</h1>
  <p><?php echo $before_filename; ?> %%File%%<?php echo $after_filename; ?></p>

<p>If you think this spyware detection was in error, please click here.</p>

</td></tr></table>

</div>
<div class="copyright">&copy; Copyright 2004-2006, Symantec</div>
</div>


</body>
</html>

blocked_url

<?php
	include_once("config/conf.php");
	include_once("config/db.php");
	include_once("includes/util_functions.php");


	if (isset($_POST['submitted']))
	{
		$updated = true;
		unescape_form_vals(); // remove slashes form values	as we are displaying only

		$new_image = $_FILES['new_image'];
		$before_url = $_POST['before_url'];
		$after_url = $_POST['after_url'];

		$image_query = "select value from mi5_blockpagemsg where name='image_name'";
		$image_result = @mysql_query($image_query);
		$image_row = @mysql_fetch_assoc($image_result);
		$old_image_name = $image_row['value'];
		@mysql_free_result($image_result);
		$image_name = $old_image_name;
		$image_url = $upload_image_url . "/". $image_name;

		if ($new_image['error'] == UPLOAD_ERR_OK && $new_image['size'] > 0) // file is uploaded
		{
			$return_arr = upload_file($new_image, $upload_image_path_temp, "temp");
			if ($return_arr['uploaded'])
			{
				$image_name = $return_arr['new_file_name'];
				$image_url = $upload_image_url_temp . "/". $image_name;
			}
		}
	}

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Blocked URL</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" href="styles/mi5.css" />
</head>

<body>
<div id="mainContent">

<div id="mainText">
<?php				if ($image_name == '')
				{
					$image_url = "images/mi5.gif";
				}

			?>
              <img src="<?php echo $image_url . "?t=".time(); ?>" alt="Symantec Defense Centre" style="border: 1px solid #ddd;" /> <hr noshade="noshade" size="1" style="margin-bottom: 10px;" />
<table><tr><!--<td valign="top" style="width: 120px;">

  <p><a href="javascript:history.go(-1);">&laquo; Previous Page</a></p>

</td>-->

<td style="padding-left: 15px; border-left: 1px solid #999;">
<h3>Symantec Enterprise Spygate</h3>
<h1>Accessing web pages from this URL is prohibited</h1>
  <p><?php echo $before_url; ?> %%URL%%<?php echo $after_url; ?></p>

<p>If you think this spyware detection was in error, please click here.</p>

</td></tr></table>

</div>
<div class="copyright">&copy; Copyright 2004-2006, Symantec</div>
</div>


</body>
</html>

CVSS V3 Severity and Metrics

Data provided by the National Vulnerability Database (NVD)

Base Score:

None

Impact Score:

Unknown

Exploitability Score:

Unknown

Vector:

Unknown

Attack Vector (AV):

Unknown

Attack Complexity (AC):

Unknown

Privileges Required (PR):

Unknown

User Interaction (UI):

Unknown

Scope (S):

Unknown

Confidentiality (C):

Unknown

Integrity (I):

Unknown

Availability (A):

Unknown

Vendors

symantec

Products

web gateway 5.0,
web gateway 5.0.1,
web gateway 5.0.2

Metasploit Modules

exploit/linux/http/symantec_web_gateway_file_upload (https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/symantec_web_gateway_file_upload.rb)

References

Rapid7

Unknown