CVE-2023-24893
📋 TL;DR
CVE-2023-24893 is a remote code execution vulnerability in Visual Studio Code that allows attackers to execute arbitrary code on a user's system by tricking them into opening a malicious workspace file. This affects all Visual Studio Code users who open untrusted workspace files. The vulnerability stems from improper input validation in workspace trust handling.
💻 Affected Systems
- Visual Studio Code
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control over the victim's machine, potentially leading to data theft, ransomware deployment, or lateral movement within networks.
Likely Case
Local privilege escalation leading to unauthorized access to sensitive files, credentials, and system resources on the compromised machine.
If Mitigated
Limited impact with proper workspace trust settings enabled, potentially preventing execution of malicious code.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious workspace file. The vulnerability has been publicly disclosed with proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.76.0 and later
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24893
Restart Required: Yes
Instructions:
1. Open Visual Studio Code. 2. Go to Help > Check for Updates. 3. Install update to version 1.76.0 or later. 4. Restart Visual Studio Code after installation.
🔧 Temporary Workarounds
Enable Workspace Trust
allEnable workspace trust feature to prevent automatic execution of code in untrusted workspaces
Set "security.workspace.trust.enabled": true in settings.json
Disable Automatic Workspace Opening
allPrevent Visual Studio Code from automatically opening workspace files
Set "window.restoreWindows": "none" in settings.json
🧯 If You Can't Patch
- Enable workspace trust feature and only open workspace files from trusted sources
- Use Visual Studio Code in a sandboxed environment or virtual machine
🔍 How to Verify
Check if Vulnerable:
Check Visual Studio Code version in Help > About. If version is below 1.76.0, the system is vulnerable.Check Version:
code --versionVerify Fix Applied:
Verify Visual Studio Code version is 1.76.0 or higher in Help > About.📡 Detection & Monitoring
Log Indicators:
- Unexpected workspace file openings
- Suspicious process executions from Visual Studio Code
- Error logs related to workspace trust failures
Network Indicators:
- Unusual outbound connections from Visual Studio Code process
- Downloads of suspicious workspace files
SIEM Query:
Process Creation where Parent Process Name contains "Code.exe" and Command Line contains suspicious patterns