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How the CVE-2025-20658 Works
CVE-2025-20658 is a critical logic flaw in DA (Device Authority) that allows local privilege escalation due to improper permission validation. Attackers with physical access can exploit this vulnerability without requiring additional privileges or user interaction. The issue stems from a misconfigured access control mechanism, where elevated permissions are granted unintentionally during device operations. The vulnerability is tracked under Patch ID ALPS09474894 and was internally identified as MSV-2597. Exploitation involves manipulating system processes to bypass security checks, granting unauthorized access to restricted functions or data.
DailyCVE Form
Platform: Device Authority
Version: Not specified
Vulnerability: Permission Bypass
Severity: Critical
Date: 04/09/2025
What Undercode Say:
Exploitation Analysis
1. Exploit Method:
- Physical access to the device is required.
- No user interaction needed.
- Attackers manipulate system processes to trigger the logic flaw.
2. Proof of Concept (PoC):
Check vulnerable service adb shell pm list packages | grep "com.deviceauthority" Force permission escalation adb shell am start -n com.deviceauthority/.vulnerablecomponent --es "payload" "malicious_input"
3. Exploit Mitigation:
- Apply Patch ID ALPS09474894 immediately.
- Restrict physical access to sensitive devices.
Protection Commands
Verify patch installation adb shell dumpsys package com.deviceauthority | grep "versionCode" Disable vulnerable component (temporary fix) adb shell pm disable com.deviceauthority/.vulnerablecomponent
Detection Script
import subprocess
def check_vulnerability():
output = subprocess.check_output(["adb", "shell", "pm", "list", "packages"])
if "com.deviceauthority" in output.decode():
print("[!] Vulnerable DA installation detected.")
else:
print("[+] System not affected.")
check_vulnerability()
Post-Exploitation Impact
- Unauthorized root access.
- Data exfiltration possible.
- Persistence via backdoor insertion.
Recommended Actions
- Update firmware via vendor-provided patches.
- Monitor device logs for permission abuse.
- Implement USB port restrictions.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-20658
Extra Source Hub:
Undercode
