CVE-2025-4636

7.8 HIGH

📋 TL;DR

CVE-2025-4636 is a privilege escalation vulnerability in the airpointer web platform where the web user has excessive privileges. An attacker who compromises the web user account can escalate to root privileges, potentially gaining full control of affected systems. This affects organizations using the airpointer2d product.

💻 Affected Systems

Products:
  • airpointer2d
Versions: All versions prior to patch
Operating Systems: Linux-based systems running airpointer
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default configuration where web service runs with excessive privileges.

⚠️ 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 with root access, allowing data theft, system destruction, and persistent backdoor installation.

🟠

Likely Case

Attacker gains root access after initial web application compromise, enabling lateral movement and data exfiltration.

🟢

If Mitigated

Limited impact if proper privilege separation and access controls prevent web user from executing privileged operations.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Requires initial compromise of web user account, but privilege escalation is straightforward once that access is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://jct-aq.com/products/airpointer2d/

Restart Required: Yes

Instructions:

1. Monitor vendor website for security updates
2. Apply vendor-provided patch when available
3. Restart airpointer service after patching

🔧 Temporary Workarounds

Reduce Web User Privileges

linux

Modify system configuration to run airpointer web service with minimal necessary privileges

sudo usermod -aG airpointer-web-user
sudo systemctl edit airpointer.service

Implement Mandatory Access Controls

linux

Use SELinux or AppArmor to restrict web user capabilities

sudo setenforce 1
sudo aa-enforce /usr/bin/airpointer

🧯 If You Can't Patch

  • Isolate airpointer systems in separate network segments with strict firewall rules
  • Implement multi-factor authentication and strong access controls for administrative interfaces

🔍 How to Verify

Check if Vulnerable:

Check if airpointer web service runs with root or excessive privileges: ps aux | grep airpointer

Check Version:

airpointer --version or check package manager

Verify Fix Applied:

Verify web service runs with limited privileges and cannot execute privileged operations

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation attempts
  • Web user executing sudo or su commands
  • Changes to user/group permissions

Network Indicators:

  • Unusual outbound connections from airpointer server
  • Multiple failed authentication attempts

SIEM Query:

source="airpointer.log" AND (event="privilege_escalation" OR user="webuser" AND command="sudo")

🔗 References

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