CVE-2025-32346 in Android
Summary
by MITRE • 09/04/2025
In onActivityResult of VoicemailSettingsActivity.java, there is a possible work profile contact number leak due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 09/07/2025
The vulnerability identified as CVE-2025-32346 resides within the onActivityResult method of VoicemailSettingsActivity.java, representing a critical security flaw that exploits a confused deputy scenario to potentially leak work profile contact information. This type of vulnerability falls under the broader category of privilege escalation attacks where an attacker can leverage existing permissions to gain elevated access. The confused deputy problem occurs when an application incorrectly trusts information from one source while acting on behalf of another, creating a scenario where legitimate system calls can be manipulated to access unauthorized data. The vulnerability specifically targets the Android operating system's work profile functionality, which is designed to separate personal and corporate data on enterprise devices. When a user interacts with voicemail settings, the application fails to properly validate the source of the data being returned through the onActivityResult callback mechanism.
The technical flaw manifests when the VoicemailSettingsActivity processes results from other components without adequate verification of the calling context. This lack of proper context validation allows malicious actors to inject or manipulate data that should remain restricted to the work profile environment. The vulnerability enables local escalation of privilege because the application fails to maintain proper access controls during the result processing phase, allowing unauthorized access to sensitive contact information that should be isolated within the work profile. The implementation does not properly enforce the security boundaries that separate personal and corporate data, creating a pathway for data leakage between these distinct security domains. This represents a failure in the Android security model's application sandboxing mechanisms, where the expected isolation between personal and work profiles is compromised.
The operational impact of this vulnerability extends beyond simple data leakage, as it provides a potential pathway for more sophisticated attacks that could lead to complete system compromise. An attacker with local access to a device could exploit this vulnerability to obtain sensitive corporate contact information, potentially enabling social engineering attacks or further exploitation of other system components. The lack of user interaction requirement makes this vulnerability particularly dangerous as it can be exploited automatically without requiring any user engagement, turning what might otherwise be a manual attack into an automated threat. This type of vulnerability is classified as a confused deputy problem under CWE-284, which specifically addresses improper access control in the context of inter-process communication. The attack vector aligns with techniques described in the ATT&CK framework under privilege escalation and credential access tactics, where adversaries seek to leverage existing legitimate credentials to access restricted resources.
Mitigation strategies for CVE-2025-32346 should focus on implementing proper input validation and context verification within the onActivityResult method of VoicemailSettingsActivity.java. Developers must ensure that all data received through callback mechanisms is properly authenticated and that the calling context is validated before any sensitive operations are performed. The fix should involve implementing strict access controls that verify the source of information being processed and ensure that work profile data remains properly isolated from personal profile components. System administrators should consider implementing additional monitoring for unusual data access patterns that might indicate exploitation attempts. The solution should also include proper enforcement of Android's security model boundaries, ensuring that applications cannot bypass the established separation between personal and work profiles. Regular security audits of Android applications should include specific checks for confused deputy vulnerabilities, particularly in components that handle onActivityResult callbacks and inter-process communication scenarios. Updates to the Android operating system and related applications should be prioritized to address this vulnerability and prevent potential exploitation by malicious actors.