CVE-2024-3507

7.7 HIGH

📋 TL;DR

This CVE describes an improper privilege management vulnerability in Lunar software that allows attackers to perform secondary process injection. By exploiting this, attackers can abuse elevated privileges to access sensitive user information. Users running Lunar versions 6.0.2 through 6.6.0 are affected.

💻 Affected Systems

Products:
  • Lunar software
Versions: 6.0.2 through 6.6.0
Operating Systems: Windows, Linux, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All installations within the affected version range are vulnerable regardless of configuration.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining administrative privileges, accessing all user data, and potentially installing persistent malware.

🟠

Likely Case

Unauthorized access to sensitive user information stored by the Lunar application, potentially including credentials, personal data, and system information.

🟢

If Mitigated

Limited impact with proper privilege separation and application sandboxing in place, potentially preventing privilege escalation.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires initial access to the system and ability to interact with the Lunar process.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 6.6.1 or later

Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/privilege-escalation-vulnerability-lunar

Restart Required: Yes

Instructions:

1. Download Lunar version 6.6.1 or later from official sources
2. Stop all Lunar processes
3. Install the updated version
4. Restart the system to ensure all processes use the patched version

🔧 Temporary Workarounds

Restrict Lunar Process Privileges

all

Run Lunar with minimal necessary privileges using operating system controls

Windows: Use Group Policy to restrict Lunar.exe privileges
Linux: Run Lunar with non-root user and apply SELinux/AppArmor policies

Application Sandboxing

all

Isolate Lunar application using containerization or virtualization

Docker: docker run --cap-drop=ALL --security-opt=no-new-privileges lunar-image
Windows Sandbox: Use Windows Sandbox feature for Lunar execution

🧯 If You Can't Patch

  • Remove Lunar from critical systems and use alternative software
  • Implement strict network segmentation to isolate systems running vulnerable Lunar versions

🔍 How to Verify

Check if Vulnerable:

Check Lunar version: If version is between 6.0.2 and 6.6.0 inclusive, the system is vulnerable.

Check Version:

lunar --version or check About section in Lunar GUI

Verify Fix Applied:

Verify Lunar version is 6.6.1 or later and check that no unauthorized processes are running with Lunar privileges.

📡 Detection & Monitoring

Log Indicators:

  • Unusual process creation from Lunar executable
  • Privilege escalation attempts in system logs
  • Unauthorized access to sensitive files by Lunar processes

Network Indicators:

  • Unexpected outbound connections from Lunar process
  • Data exfiltration patterns from systems running Lunar

SIEM Query:

Process Creation where Parent Process Name contains 'lunar' AND (Process Name != 'lunar' OR Command Line contains suspicious patterns)

🔗 References

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