A new study confirms that dozens of iOS apps are affected by vulnerabilities that could be exploited by hackers to run man-in-the-middle (MitM) and intercept data from connections even if protected by TLS.
The study was conducted by the developers at verify.ly, a service that analyzes iOS apps searching for security issues. The experts analyzed applications in the Apple App Store and discovered hundreds of security issues that potentially expose mobile users to MITM attacks. All the applications have been tested on iPhone mobile devices running iOS 10 version and confirmed that 76 had been vulnerable.
The impact is serious if we consider that the affected applications account for more than 18 million downloads. The vulnerability is considered high risk in the case of 19 of the 76 applications. The applications expose sensitive data, including financial or medical service credentials or session authentication tokens.
“During the testing process, I was able to confirm 76 popular iOS applications allow a silent man-in-the-middle attack to be performed on connections which should be protected by TLS (HTTPS), allowing interception and/or manipulation of data in motion.” reads the blog post published by the researchers.
“According to Apptopia estimates, there has been a combined total of more than 18,000,000 (Eighteen Million) downloads of app versions which are confirmed to be affected by this vulnerability.”
Examining the key findings of the report we can see that:
“This sort of attack can be conducted by any party within Wi-Fi range of your device while it is in use. This can be anywhere in public, or even within your home if an attacker can get within close range,” continues the post. “Such an attack can be conducted using either custom hardware, or a slighly modified mobile phone, depending on the required range and capabilities. The best similar and well-understood form of attack to this would be the ability to read data from credit cards at a close range.”
The security issues discovered by the experts are the result of the lax of adoption of secure coding techniques. Waiting for a fix, the users of the affected iOS apps need to avoid using them on Wi-Fi networks.
(Security Affairs – iOS apps, MITM)
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