LINE for Android version 5.0.2 and earlier and LINE for iOS version 5.0.0 and earlier are vulnerable to MITM (man-in-the-middle) attack since the application allows non-SSL/TLS communications. As a result, any API may be invoked from a script injected by a MITM (man-in-the-middle) attacker.

LINE for Android version 5.0.2 and earlier and LINE for iOS version 5.0.0 and earlier are vulnerable to MITM (man-in-the-middle) attack since the application allows non-SSL/TLS communications. As a result, any API may be invoked from a script injected by a MITM (man-in-the-middle) attacker.

LINE provided by LINE Corporation is an application used to communicate with others. LINE is vulnerable to MITM (man-in-the-middle) attacks since the application allows non-SSL/TLS communications. As a result, any API may be invoked from a script injected by a MITM (man-in-the-middle) attacker. Kenta Suefusa, Nobuaki Nakazawa and Tomonori Shiomi of Sprout Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.