CVE-2024-12603 in com.transsion.applock
Summary
by MITRE • 12/13/2024
A logic vulnerability in the the mobile application (com.transsion.applock) can lead to bypassing the application password.
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Analysis
by VulDB Data Team • 03/14/2025
The vulnerability identified as CVE-2024-12603 represents a critical logic flaw within the mobile application com.transsion.applock which governs application locking functionality on Android devices. This security weakness specifically affects the authentication mechanism that protects user applications from unauthorized access, creating a pathway for malicious actors to circumvent the intended password protection measures. The flaw resides in the application's validation and verification processes, where improper state management or conditional logic allows unauthorized users to gain access to protected applications without proper authentication.
The technical implementation of this vulnerability stems from inadequate input validation and insufficient access control checks within the application's core logic. When users attempt to access locked applications, the system should enforce strict authentication protocols that validate user credentials before granting access. However, the flawed implementation permits bypass scenarios where users can navigate through the application's interface without proper password verification, effectively rendering the security controls ineffective. This type of vulnerability typically falls under CWE-284 which addresses improper access control, and may also relate to CWE-345 which covers insufficient verification of data integrity.
From an operational perspective, this vulnerability poses significant risks to user privacy and data security. Mobile applications that protect sensitive information, such as messaging apps, banking applications, or personal photos, become vulnerable to unauthorized access when this logic flaw is exploited. Attackers can leverage this weakness to access private communications, financial data, or personal files without requiring the legitimate user's password. The impact extends beyond individual privacy concerns to potential corporate data breaches when users employ this application to protect business-critical information on their devices.
The exploitation of this vulnerability aligns with several tactics outlined in the MITRE ATT&CK framework, particularly focusing on privilege escalation and credential access techniques. Adversaries may utilize this weakness as part of a broader attack chain to gain unauthorized access to protected applications and subsequently escalate their privileges within the device. The vulnerability's presence in a widely used application lock software increases its potential impact, as it could affect numerous users across different device models and operating system versions. Security researchers should consider this flaw when conducting mobile application security assessments and recommend implementing robust access control mechanisms to prevent similar logic vulnerabilities in future releases.
Mitigation strategies for this vulnerability should include comprehensive code reviews focusing on authentication flows and access control implementations, along with thorough penetration testing of mobile application security features. Developers should implement proper state management, strengthen input validation procedures, and ensure that all authentication checks are performed before granting access to protected resources. Additionally, regular security updates and patches should be deployed promptly to address such logic flaws, while user education regarding secure application usage practices remains essential for maintaining overall device security posture.