An update released this week by Apple for the Apple Music application for Android addresses a certificate validation issue that can be exploited to intercept potentially sensitive data.
In addition to a new design and new features, version 2.0 of Apple Music for Android, which according to Google Play has between 10 and 50 million installs, patches a vulnerability that can allow a man-in-the-middle (MitM) attacker to obtain user information.
The vulnerability, tracked as CVE-2017-2387, was reported to Apple by David Coomber of Info-Sec.CA back in August 2016. At the time, the researcher determined that the flaw had affected Apple Music 1.2.1 and earlier versions of the Android app.
In an advisory published this week, Coomber said he asked Apple for a status update in January, and the company said it had still been working on addressing the security hole.
The problem, according to the researcher, was that the app did not validate the SSL certificates received when connecting to the login and payment servers.
“An attacker who can perform a man in the middle attack may present bogus SSL certificates which the application will accept silently,” Coomber explained in his advisory. “Sensitive information could be captured by an attacker without the user’s knowledge.”
It’s worth noting that this appears to be the first security advisory released by Apple for the Music app. The Android application was introduced in November 2015.
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