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Facebook fixes Instagram bug that turns phones into spying tools

IANS/New Delhi
Filed on September 26, 2020
Instagram, mobile phone, Facebook, privacy

An attack can be triggered once a malicious image is sent via email or WhatsApp and then saved on a victim's device.

Facebook has patched a critical vulnerability in Instagram that could have given an attacker the ability to take over a victims Instagram account, and turn their phone into a spying tool, simply by sending them a malicious image file.

When the image is saved and opened in the Instagram app, the exploit would give the hacker full access to the victim's Instagram messages and images, allowing them to post or delete images at will, as well as giving access to the phone's contacts, camera and location data, according to cyber security researchers at Check Point.

An attack can be triggered once a malicious image is sent via email or WhatsApp and then saved on a victim's device.

The researchers revealed the critical vulnerability as remote code execution (RCE) that allows an attacker to take over a computer or a server by running arbitrary malicious software (malware).

"This vulnerability can allow an attacker to perform any action they wish in the Instagram app. Since the Instagram app has very extensive permissions, this may allow an attacker to instantly turn the targeted phone into a perfect spying tool - putting the privacy of millions of users at serious risk," the cyber security firm revealed in a blog post on Friday.

Instagram is one of the most popular social media platforms globally, with over 100 million photos uploaded every day, and nearly 1 billion monthly active users.

"The vulnerability we found was in the way that Instagram used Mozjpeg- an open source project used by Instagram as its JPEG format image decoder for images uploaded to the service," the researchers explained.

The company disclosed the findings to Facebook and the Instagram team.

Facebook described the vulnerability as an "Integer Overflow leading to Heap Buffer Overflow" and issued a patch to remediate the issue on the newer versions of the Instagram application on all platforms.

"The patch for this vulnerability has already been available for 6 months prior to this publication, giving time to the majority of users to update their Instagram applications, thus mitigating the risk of this vulnerability being exploited," the researchers informed.

"We strongly encourage all Instagram users to ensure they are using the latest Instagram app version and to update if any new version is available".


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