CVE-2023-29757
📋 TL;DR
This vulnerability in Blue Light Filter v1.5.5 for Android allows unauthorized apps to manipulate SharedPreference files, leading to privilege escalation attacks. Attackers can gain elevated permissions by exploiting insecure file permissions. Only users of this specific Android app version are affected.
💻 Affected Systems
- Blue Light Filter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise with attacker gaining system-level privileges, installing malware, accessing sensitive data, and controlling device functions.
Likely Case
Unauthorized app gaining elevated permissions to access protected resources, modify system settings, or steal user data without consent.
If Mitigated
Limited impact with proper app sandboxing and permission controls preventing cross-app data manipulation.
🎯 Exploit Status
Exploitation requires installing a malicious app on the same device. The vulnerability is well-documented in public repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.5.6 or later
Vendor Advisory: https://github.com/LianKee/SO-CVEs/blob/main/CVEs/CVE-2023-29757/CVE%20detailed.md
Restart Required: No
Instructions:
1. Open Google Play Store 2. Search for Blue Light Filter 3. Check if update is available 4. Update to v1.5.6 or later 5. Verify update completed successfully
🔧 Temporary Workarounds
Uninstall vulnerable app
androidRemove Blue Light Filter v1.5.5 from device
Settings > Apps > Blue Light Filter > Uninstall
Restrict app installations
androidOnly install apps from trusted sources and review permissions carefully
Settings > Security > Unknown sources (disable)
🧯 If You Can't Patch
- Isolate device from sensitive networks and data
- Monitor for suspicious app behavior and unusual permission requests
🔍 How to Verify
Check if Vulnerable:
Check app version in Settings > Apps > Blue Light Filter > App infoCheck Version:
adb shell dumpsys package com.panaceasoft.blue_light_filter | grep versionNameVerify Fix Applied:
Confirm app version is v1.5.6 or later in app settings📡 Detection & Monitoring
Log Indicators:
- Unauthorized access to SharedPreference files
- Permission escalation attempts
- Unexpected app behavior
Network Indicators:
- Unusual network traffic from Blue Light Filter app
SIEM Query:
app:"Blue Light Filter" AND version:"1.5.5" AND event_type:"privilege_escalation"