CVE-2022-24345

7.8 HIGH

📋 TL;DR

This vulnerability in JetBrains IntelliJ IDEA allows local code execution without user permission when opening a project. Attackers could execute arbitrary code on the system by tricking users into opening malicious projects. All users running vulnerable versions of IntelliJ IDEA are affected.

💻 Affected Systems

Products:
  • JetBrains IntelliJ IDEA
Versions: All versions before 2021.2.4
Operating Systems: Windows, macOS, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All standard installations are vulnerable. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining complete control over the developer's machine, potentially leading to data theft, lateral movement, or deployment of ransomware.

🟠

Likely Case

Local privilege escalation allowing attackers to execute code with the user's permissions, potentially stealing credentials, source code, or installing backdoors.

🟢

If Mitigated

Limited impact with proper network segmentation and user privilege restrictions, though local code execution would still be possible.

🌐 Internet-Facing: LOW - This is primarily a local attack vector requiring user interaction to open a malicious project.
🏢 Internal Only: HIGH - Developers frequently open projects from various sources including internal repositories, making this a significant internal threat.

🎯 Exploit Status

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

Exploitation requires user interaction (opening a malicious project) but the technical complexity appears low based on the CVSS score and description.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2021.2.4 and later

Vendor Advisory: https://blog.jetbrains.com/blog/2022/02/08/jetbrains-security-bulletin-q4-2021/

Restart Required: Yes

Instructions:

1. Open IntelliJ IDEA. 2. Go to Help > Check for Updates. 3. Follow prompts to update to version 2021.2.4 or later. 4. Restart IntelliJ IDEA after update completes.

🔧 Temporary Workarounds

Avoid opening untrusted projects

all

Only open projects from trusted sources until patched.

Run with reduced privileges

all

Run IntelliJ IDEA with non-administrative user account to limit potential damage.

🧯 If You Can't Patch

  • Implement strict project source verification policies
  • Use application whitelisting to prevent execution of unauthorized binaries

🔍 How to Verify

Check if Vulnerable:

Check IntelliJ IDEA version in Help > About. If version is below 2021.2.4, system is vulnerable.

Check Version:

On Linux/macOS: grep -i 'version' ~/.IntelliJIdea*/config/options/ide.general.xml | head -1

Verify Fix Applied:

After updating, verify version is 2021.2.4 or higher in Help > About.

📡 Detection & Monitoring

Log Indicators:

  • Unusual process execution from IntelliJ IDEA
  • Suspicious project file access patterns

Network Indicators:

  • Unexpected outbound connections from IntelliJ IDEA process

SIEM Query:

process_name:"idea.exe" OR process_name:"idea.sh" AND (event_type:"process_creation" OR event_type:"file_access")

🔗 References

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