Check Point Software, a multinational cybersecurity firm revealed a potentially calamitous, although old, bug in the Facebook-owned messaging service WhatsApp on Tuesday.
News of the bug came in a report which dubbed it the “WhatsApp Crash and Data Loss Bug”. As the name suggests, the bug caused the service to crash with the added loss of data.
However, the bug could only infect users if they were a part of a group chat.
How It Worked
The report illustrates in detail how a hacker or cybercriminal could utilize the bug.
First and foremost, because the bug only affected group chats, the hacker would have to be a part of the chat they were aiming to infect.
Once a part of the group, the hacker could plant the bug in a text message by using the web version of WhatsApp. But to breach text messages, the hacker would need to use a decryption tool due to the encryption placed on each text sent on WhatsApp.
Once the text reached the group, any member who opened it would encounter a crash loop, i.e., their app would crash again and again on opening.
To fix the crash loop, the user would’ve had to uninstall and reinstall WhatsApp and leave the group.
Read More . https://dazeinfo.com/2019/12/18/a-new-whatsapp-bug-makes-it-crucial-for-users-to-update-the-app/