CVE-2026-9219 in Setracker2 Parental Control App package com.tgelec.setracker
Summary
by MITRE • 06/26/2026
Setracker2 Android Companion App com.tgelec.setracker versions 3.1.5 and prior have a predictable registration ID derived from IMEI. The enrollment system lacks additional authentication before assignment. If an attacker is able to obtain the registration ID, they would be able to arbitrarily enroll watches belonging to other users.
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Analysis
by VulDB Data Team • 06/26/2026
The vulnerability in Setracker2 Android Companion App versions 3.1.5 and prior represents a critical security flaw that undermines the integrity of device enrollment and user authentication processes. This issue stems from the predictable nature of registration IDs which are directly derived from IMEI numbers, creating a deterministic system where attackers can easily generate valid enrollment tokens for arbitrary devices. The flaw exists at the core of the application's enrollment mechanism where no additional authentication factors are required before assigning devices to user accounts, effectively creating a backdoor that allows unauthorized access to device management capabilities.
The technical implementation of this vulnerability aligns with CWE-200, which addresses information exposure through predictable identifiers, and CWE-305, which covers authentication bypass through the use of weak authentication mechanisms. The registration ID generation process essentially creates a cryptographic weakness where the IMEI number serves as the primary source of entropy for device identification, making it trivial for attackers to enumerate valid registration tokens. This predictable pattern violates fundamental security principles that require non-reversible, cryptographically secure identifiers for device management systems. The absence of additional authentication layers such as challenge-response mechanisms, time-based tokens, or user-specific authentication factors creates a single point of failure that can be exploited across multiple devices simultaneously.
From an operational perspective, this vulnerability enables attackers to perform unauthorized device enrollment and potentially gain full control over tracking capabilities associated with other users' devices. The impact extends beyond simple data access as it allows for arbitrary device assignment, which could lead to privacy violations, location tracking abuse, and potential financial loss through fraudulent device management activities. Attackers could exploit this weakness to impersonate legitimate users, manipulate device settings, or gain unauthorized access to sensitive tracking data that could be used for malicious purposes including stalking, corporate espionage, or identity theft. The vulnerability affects the entire user base of affected versions, creating a widespread security risk that persists until remediation occurs.
The mitigation strategy should involve immediate implementation of cryptographically secure random number generation for registration ID creation, eliminating the predictable nature of IMEI-based identifiers. Additionally, the enrollment system must incorporate multi-factor authentication mechanisms including challenge-response protocols, time-bound tokens, or user-specific verification processes before device assignment. Organizations should also implement proper session management and access controls to prevent unauthorized enrollment attempts. The solution must address the root cause by ensuring that registration IDs are generated using secure randomization techniques that comply with NIST SP 800-90A standards for cryptographic random number generation, while also implementing proper authentication protocols that align with OWASP authentication security practices. Regular security audits should be conducted to verify that enrollment mechanisms remain robust against similar predictable identifier attacks and that all device management processes maintain appropriate security controls throughout the entire lifecycle of enrolled devices.