CVE-2025-27247
📋 TL;DR
This vulnerability in OpenHarmony allows a local attacker to bypass permission checks and access sensitive information they shouldn't have access to. It affects OpenHarmony v5.0.3 and earlier versions, potentially exposing user data or system information to malicious local applications.
💻 Affected Systems
- OpenHarmony
📦 What is this software?
Openharmony by Openatom
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of user privacy with exposure of sensitive personal data, authentication credentials, or system configuration details to malicious local applications.
Likely Case
Limited information disclosure of user data or application-specific information to other local applications running on the same device.
If Mitigated
Minimal impact if proper application sandboxing and permission models are enforced, with only non-sensitive data potentially exposed.
🎯 Exploit Status
Exploitation requires local access and ability to run code on the device. The vulnerability involves permission bypass which is typically straightforward to exploit once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: OpenHarmony v5.0.4 or later
Vendor Advisory: https://gitee.com/openharmony/security/blob/master/zh/security-disclosure/2025/2025-06.md
Restart Required: Yes
Instructions:
1. Check current OpenHarmony version. 2. Update to OpenHarmony v5.0.4 or later through official update channels. 3. Reboot device after update completes.
🔧 Temporary Workarounds
Restrict local application permissions
allReview and restrict permissions granted to local applications to minimize potential information exposure.
Application sandboxing enforcement
allEnsure strict application sandboxing is enabled to limit inter-application data access.
🧯 If You Can't Patch
- Implement strict application vetting and only install trusted applications from verified sources
- Enable enhanced security monitoring for unusual permission access patterns
🔍 How to Verify
Check if Vulnerable:
Check OpenHarmony version: Settings > About device > Version. If version is 5.0.3 or earlier, device is vulnerable.Check Version:
getprop ro.build.version.ohosVerify Fix Applied:
After update, verify version is 5.0.4 or later in Settings > About device > Version.📡 Detection & Monitoring
Log Indicators:
- Unusual permission access patterns
- Applications accessing permissions they shouldn't have
- Failed permission checks in system logs
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Search for permission bypass attempts or unusual permission access in system logs