Samsung Kies Air 2.1.207051 and 2.1.210161 relies on the IP address for authentication, which allows remote man-in-the-middle attackers to read arbitrary phone contents by spoofing or controlling the IP address.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.