Huawei Backup App - Mobile Reset Session Vulnerability

Document Title:
===============
Huawei Backup App - Mobile Reset Session Vulnerability 


References:
===========
https://www.vulnerability-lab.com/get_content.php?id=1987

Video:  https://www.youtube.com/watch?v=YAW9yL1CoW8

Advisory: https://www.vulnerability-lab.com/customer/get_private_content.php?id=1815



Release Date:
=============
2018-07-29


Vulnerability Laboratory ID (VL-ID):
====================================
1978


Common Vulnerability Scoring System:
====================================
5.9


Current Estimated Price:
========================
500€ - 1.000€


Vulnerability Disclosure Timeline:
==================================
2018-07-30: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Local


Severity Level:
===============
Medium


Technical Details & Description:
================================
The vulnerability is located in the application folder `HuaweiBackup - BackupFiles` with the `Name of the Backup folder`. 
The vulnerability affects the file called `info.xml` which is storing the encrypted passwords inside. By modifying the 
`checkmsg` parameter value with another encrypted password type it is possible to bypass and reset the current password 
successfully. Due to our investigation Huawei Backup android application comes default to all huawei mobile products.


Credits & Authors:
==================
Vulnerability-Lab [[email protected]] - https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab


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=========================
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