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The Hacker News - Cybersecurity News and Analysis: hack whatsapp chat

Just a GIF Image Could Have Hacked Your Android Phone Using WhatsApp

Just a GIF Image Could Have Hacked Your Android Phone Using WhatsApp
October 03, 2019Swati Khandelwal
A picture is worth a thousand words, but a GIF is worth a thousand pictures. Today, the short looping clips, GIFs are everywhere—on your social media, on your message boards, on your chats, helping users perfectly express their emotions, making people laugh, and reliving a highlight. But what if an innocent-looking GIF greeting with Good morning, Happy Birthday, or Merry Christmas message hacks your smartphone? Well, not a theoretical idea anymore. WhatsApp has recently patched a critical security vulnerability in its app for Android, which remained unpatched for at least 3 months after being discovered, and if exploited, could have allowed remote hackers to compromise Android devices and potentially steal files and chat messages. WhatsApp Remote Code Execution Vulnerability The vulnerability, tracked as CVE-2019-11932 , is a double-free memory corruption bug that doesn't actually reside in the WhatsApp code itself, but in an open-source GIF image parsing library th

Just Answering A Video Call Could Compromise Your WhatsApp Account

Just Answering A Video Call Could Compromise Your WhatsApp Account
October 10, 2018Swati Khandelwal
What if just receiving a video call on WhatsApp could hack your smartphone? This sounds filmy, but Google Project Zero security researcher Natalie Silvanovich found a critical vulnerability in WhatsApp messenger that could have allowed hackers to remotely take full control of your WhatsApp just by video calling you over the messaging app. The vulnerability is a memory heap overflow issue which is triggered when a user receives a specially crafted malformed RTP packet via a video call request, which results in the corruption error and crashing the WhatsApp mobile app. Since the vulnerability affect RTP (Real-time Transport Protocol) implementation of Whatsapp, the flaw affects Android and iOS apps, but not WhatsApp Web that relies on WebRTC for video calls. Silvanovich also published a proof-of-concept exploit, along with the instructions for reproducing the WhatsApp attack. Although the proof-of-concept published by Silvanovich only triggers memory corruption, another Go

WhatsApp Flaw Lets Users Modify Group Chats to Spread Fake News

WhatsApp Flaw Lets Users Modify Group Chats to Spread Fake News
August 08, 2018Swati Khandelwal
WhatsApp, the most popular messaging application in the world, has been found vulnerable to multiple security vulnerabilities that could allow malicious users to intercept and modify the content of messages sent in both private as well as group conversations. Discovered by security researchers at Israeli security firm Check Point, the flaws take advantage of a loophole in WhatsApp's security protocols to change the content of the messages, allowing malicious users to create and spread misinformation or fake news from "what appear to be trusted sources." The flaws reside in the way WhatsApp mobile application connects with the WhatsApp Web and decrypts end-to-end encrypted messages using the protobuf2 protocol . The vulnerabilities could allow hackers to misuse the 'quote' feature in a WhatsApp group conversation to change the identity of the sender, or alter the content of someone else's reply to a group chat, or even send private messages to one of
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