CVE-2024-12786
📋 TL;DR
This critical vulnerability in X1a0He Adobe Downloader allows local attackers to escalate privileges on macOS systems. The flaw exists in the XPC service's connection handling, enabling unauthorized access to higher privileges. Only users running Adobe Downloader versions up to 1.3.1 on macOS are affected.
💻 Affected Systems
- X1a0He Adobe Downloader
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Local attacker gains root privileges, enabling complete system compromise, data theft, persistence mechanisms, and disabling of security controls.
Likely Case
Local user or malware with initial access escalates to administrative privileges, allowing installation of additional malware, credential harvesting, and lateral movement.
If Mitigated
With proper privilege separation and application sandboxing, impact limited to user-level access without system-wide compromise.
🎯 Exploit Status
Exploit has been publicly disclosed and requires local access. Attack vector is through the shouldAcceptNewConnection function in the XPC service.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
Uninstall Adobe Downloader completely. No official patch is available from the developer.
🔧 Temporary Workarounds
Uninstall Adobe Downloader
macOSRemove the vulnerable application completely from the system
sudo rm -rf /Applications/Adobe\ Downloader.app
sudo rm -rf ~/Library/Application\ Support/com.x1a0he.macOS.Adobe-Downloader
sudo rm -rf /Library/LaunchDaemons/com.x1a0he.macOS.Adobe-Downloader.helper.plist
Disable XPC Service
macOSPrevent the vulnerable helper service from running
sudo launchctl unload /Library/LaunchDaemons/com.x1a0he.macOS.Adobe-Downloader.helper.plist
sudo launchctl disable system/com.x1a0he.macOS.Adobe-Downloader.helper
🧯 If You Can't Patch
- Remove all user privileges to execute the Adobe Downloader application
- Implement strict application control policies to prevent execution of unauthorized software
🔍 How to Verify
Check if Vulnerable:
Check if Adobe Downloader is installed: ls /Applications/ | grep -i 'adobe downloader' and check version in app bundle or ~/Library/Application Support/com.x1a0he.macOS.Adobe-DownloaderCheck Version:
cat ~/Library/Application\ Support/com.x1a0he.macOS.Adobe-Downloader/version.txt 2>/dev/null || echo 'Not installed'Verify Fix Applied:
Verify Adobe Downloader is not installed: sudo find / -name '*Adobe*Downloader*' 2>/dev/null and check no related processes are running: ps aux | grep -i 'adobe.downloader'📡 Detection & Monitoring
Log Indicators:
- Unauthorized XPC connection attempts to com.x1a0he.macOS.Adobe-Downloader.helper
- Privilege escalation attempts in system logs
- Unexpected process execution with elevated privileges
Network Indicators:
- Local inter-process communication to vulnerable XPC service
SIEM Query:
process_name:"com.x1a0he.macOS.Adobe-Downloader.helper" AND event_type:"privilege_escalation" OR parent_process:"Adobe Downloader" AND child_process:"sudo" OR "root"