Document Title:
===============
Yahoo Bug Bounty #37 - Sender Spoofing Vulnerability 


References:
===========
https://www.vulnerability-lab.com/get_content.php?id=1985

Video: https://www.youtube.com/watch?v=QYZRbRqs50g

Advisory: https://www.vulnerability-lab.com/get_content.php?id=1777



Release Date:
=============
2016-10-16


Vulnerability Laboratory ID (VL-ID):
====================================
1985


Common Vulnerability Scoring System:
====================================
3


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


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Low


Technical Details & Description:
================================
Remote attackers are able to spoof the sender name of yahoo email users to send a spoofed sender with spoofed content. 
After investigation in the vulnerability we discovered that it is located in the yahoo classic web application product. 
Attackers are able to perform the malicious interaction via the yahoo classic mail service. The vulnerability is located 
in the `compose message` module of the web service. The request method to inject or intercept as reply is POST.


Credits & Authors:
==================
Vulnerability Laboratory [APT SECURITY TEAM] (research@vulnerability-lab.com) [www.vulnerability-lab.com]


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