Overview
The CVE-2025-32331 vulnerability exposes a flaw in the showDismissibleKeyguard function of KeyguardService.java, allowing potential attackers to bypass app pinning due to a logic error in the code. This kind of vulnerability could lead to local escalation of privilege without requiring additional execution privileges, posing a significant security risk to any system using the affected versions of the software. Immediate action is necessary to prevent potential system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-32331
Severity: High (7.8 CVSS score)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Android OS | 10.0, 11.0
How the Exploit Works
The exploit works by taking advantage of a logic error in the showDismissibleKeyguard function of KeyguardService.java. This error allows an attacker to bypass the app pinning feature, which is designed to keep a user within a specific app until a pin is entered. By bypassing this feature, a malicious actor could potentially gain escalated privileges on the local device without any need for additional execution privileges or user interaction.
Conceptual Example Code
Below is a conceptual example of how the vulnerability could be exploited with pseudocode:
public void exploitCVE202532331() {
// Bypass the app pinning feature
KeyguardService.dismissibleKeyguard(false);
// Perform malicious actions with escalated privileges
performMaliciousActions();
}This pseudocode represents the potential actions an attacker could take to exploit the vulnerability. The actual exploit would depend on the specific circumstances and the malicious actor’s objectives.
To mitigate this vulnerability, it is strongly recommended to apply the vendor’s patch as soon as it becomes available or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure.
