Today, I want to share with you how I successfully exploit the modem of an ISP in Vietnam. I found the multiple vulnerabilities in the GPON firmware, all of them belong to the web portal of the modem. That means it can only be exploited from a client which joined in LAN or it can be triggered by a CSRF in LAN. Anyway, I don’t wanna magnify this stuff.
In previous article, we talk about how to get data from account bank number in mobile banking application. In this article, we talk about how we help them to fix this serious security flaw.
Indirect Reference Map
THIS FLAW HAS BEEN FIXED BY THE OWNER AT THE TIME THIS POST IS PUBLISHED. THE CONTENT IS FOR KNOWLEDGE SHARING PURPOSE TO PREVENT THIS FLAW HAPPEN AGAIN
Retail bank industry is booming in Vietnam recent years. Many banks invest for retail business through improve customer service. Mobile banking is one of the hot topics, every bank already had or soon to have mobile banking and mobile apps for their customers use. Winter season is nebulous in Vietnam and the repetitive company work make me so bored. I need a fresh air. Luckily, a commercial bank contacted us for help them idetify the security risks on their mobile application (iOS, Android) and I took care of it.
In July, the large service providers in Vietnam (name is deducted due to privacy reason) were attacked, which has been causing serious consequences. At the time, we found a very new malware sample and selected it to analyze and publish this report to aware the community. Continue reading