iSmartAlarm Backend Server-Side Request Forgery Vulnerability

[+] Credits: Ilia Shnaidman
[+] Source:
http://dojo.bullguard.com/blog/burglar-hacker-when-a-physical-security-is-compromised-by-iot-vulnerabilities/


Vendor:
=============
iSmartAlarm, inc.


Product:
=============
iSmartAlarm Backend

iSmartAlarm is one of the leading IoT manufactures in the domain of smart alarm systems.
It provides a fully integrated alarm system with siren, smart cameras and locks.
It functions like any alarm system, but with the benefits of a connected device: alerts pop up on your phone,
offering you full remote control via mobile app wherever you are.


Vulnerability Type:
=============
Server Side Request Forgery


CVE Reference:
=============
CVE-2017-7727


Security Issue:
================
Open Redirection -
iSmartAlarm is not validating injection inside its api.


Attack Vectors:
===============
One of the backend api's contains an SSRF which allows me to use it as a proxy.
An attacker can use iSmartAlarm's backend as a proxy server and potentially launch outbound attacks.
PoC:
https://api.ismartalarm.com:8443/api/downloadfile.ashx?url=https://ifconfig.io


Disclosure Timeline:
=====================================
Jan  30, 2017: Initial contact to vendor
Feb  1,  2017: Vendor replied, requesting details
Feb  2,  2017: Disclosure to vendor
Apr  12, 2017: After vendor didn't replied, I've approached CERT
Apr  13, 2017: Confirmed receipt by CERT and assigning CVEs
July 05, 2017: Public disclosure

#  0day.today [2018-02-02]  #