CVE-2025-8512 in Big Big Shop App
Summary
by MITRE • 08/03/2025
A vulnerability, which was classified as problematic, has been found in TVB Big Big Shop App 2.9.0 on Android. This issue affects some unknown processing of the file AndroidManifest.xml of the component hk.com.tvb.bigbigshop. The manipulation leads to improper export of android application components. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 08/03/2025
CVE-2025-8512 represents a significant security flaw in the TVB Big Big Shop Android application version 2.9.0 that stems from improper handling of the AndroidManifest.xml file. This vulnerability falls under the category of component exposure issues where application components are incorrectly exported, potentially allowing unauthorized access to sensitive functionality. The flaw specifically affects the hk.com.tvb.bigbigshop package component within the AndroidManifest.xml configuration file, creating a pathway for malicious actors to exploit the application's internal mechanisms.
The technical nature of this vulnerability aligns with CWE-922, which addresses insufficient export of application components, and represents a direct violation of Android security principles. When components are improperly exported in the manifest file, they become accessible to other applications on the device without proper authentication or authorization checks. This misconfiguration allows for potential privilege escalation attacks and could enable attackers to access protected application functionality, data, or services that should remain restricted to the application's own processes.
From an operational perspective, this vulnerability creates a local attack surface that requires physical device access for exploitation. The fact that the exploit has been publicly disclosed and is potentially in use increases the risk profile significantly. Attackers could leverage this flaw to gain unauthorized access to application features, potentially leading to data theft, unauthorized transactions, or further system compromise. The lack of vendor response to early disclosure attempts suggests a critical gap in the application's security maintenance and vulnerability management processes.
The impact of this vulnerability extends beyond simple data exposure, as it fundamentally undermines the application's security architecture. Proper Android application security requires careful configuration of component exports through the manifest file, ensuring that only necessary components are accessible to other applications. The absence of proper export restrictions creates opportunities for malicious applications to interact with the vulnerable app's functionality, potentially leading to complete compromise of the application's security model. This situation directly relates to ATT&CK technique T1068, which covers 'Exploitation for Privilege Escalation', as the improper component export could enable attackers to escalate their privileges within the application context.
Organizations should immediately implement mitigations including updating the application to a patched version, reviewing all component exports in the AndroidManifest.xml file, and conducting comprehensive security audits of the application's manifest configuration. Security teams should also consider implementing runtime monitoring to detect unauthorized access attempts to application components. The vulnerability highlights the critical importance of proper Android security configuration management and demonstrates how seemingly minor manifest file misconfigurations can create substantial security risks. Additionally, organizations should establish robust vulnerability disclosure and response procedures to ensure timely remediation of security issues before public exploitation occurs.