CVE-2024-36053

9.0 CRITICAL

📋 TL;DR

This vulnerability allows command injection in the mintupload package for Linux Mint through shell metacharacters in service names. An authenticated user can execute arbitrary commands with the privileges of the mintupload process by modifying a service configuration file. This affects Linux Mint users with mintupload installed.

💻 Affected Systems

Products:
  • mintupload
Versions: through 4.2.0
Operating Systems: Linux Mint
Default Config Vulnerable: ⚠️ Yes
Notes: Requires mintupload package installed and user access to modify ~/.linuxmint/mintUpload/services/service file.

⚠️ 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

Full system compromise via remote code execution leading to data theft, ransomware deployment, or complete system takeover.

🟠

Likely Case

Local privilege escalation allowing an authenticated user to gain elevated privileges and potentially pivot to other systems.

🟢

If Mitigated

Limited impact if proper file permissions restrict service file modification to trusted users only.

🌐 Internet-Facing: LOW - This requires local user access to modify configuration files.
🏢 Internal Only: HIGH - Any authenticated user with access to modify the service file can exploit this vulnerability.

🎯 Exploit Status

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

Exploitation requires authenticated user access and ability to modify service configuration files.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.2.1 or later

Vendor Advisory: https://github.com/linuxmint/mintupload/issues/42

Restart Required: Yes

Instructions:

1. Update package repository: sudo apt update
2. Upgrade mintupload: sudo apt install --only-upgrade mintupload
3. Restart any mintupload services or reboot system

🔧 Temporary Workarounds

Restrict service file permissions

linux

Set strict permissions on the service configuration file to prevent unauthorized modifications.

chmod 600 ~/.linuxmint/mintUpload/services/service
chown root:root ~/.linuxmint/mintUpload/services/service

Disable mintupload service

linux

Temporarily disable the mintupload service until patching is complete.

sudo systemctl stop mintupload
sudo systemctl disable mintupload

🧯 If You Can't Patch

  • Implement strict file permissions on ~/.linuxmint/mintUpload/services/service to restrict write access to trusted users only.
  • Monitor for unauthorized modifications to mintupload service files and implement file integrity monitoring.

🔍 How to Verify

Check if Vulnerable:

Check mintupload version: dpkg -l | grep mintupload
If version is 4.2.0 or earlier, system is vulnerable.

Check Version:

dpkg -l | grep mintupload

Verify Fix Applied:

Verify mintupload version is 4.2.1 or later: dpkg -l | grep mintupload

📡 Detection & Monitoring

Log Indicators:

  • Unusual process execution from mintupload context
  • Modifications to ~/.linuxmint/mintUpload/services/service file

Network Indicators:

  • Unexpected outbound connections from mintupload process

SIEM Query:

process_name:mintupload AND (cmdline:*;* OR cmdline:*&* OR cmdline:*|* OR cmdline:*`*)

🔗 References

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