CVE-2025-43014
📋 TL;DR
The JetBrains Toolbox App SSH plugin before version 2.6 establishes SSH connections without requiring sufficient user confirmation. This allows potential unauthorized SSH connections to be initiated through the application. Users of JetBrains Toolbox App versions before 2.6 are affected.
💻 Affected Systems
- JetBrains Toolbox App
📦 What is this software?
Toolbox by Jetbrains
⚠️ Risk & Real-World Impact
Worst Case
An attacker could establish unauthorized SSH connections to remote systems, potentially gaining access to sensitive servers or executing commands without proper authorization.
Likely Case
Malicious actors could leverage this to connect to internal SSH servers without user awareness, potentially accessing development environments or source code repositories.
If Mitigated
With proper network segmentation and SSH key management, the impact is limited to unauthorized connection attempts that fail due to authentication requirements.
🎯 Exploit Status
Exploitation requires access to the Toolbox App interface or ability to trigger SSH connections through it.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.6 and later
Vendor Advisory: https://www.jetbrains.com/privacy-security/issues-fixed/
Restart Required: Yes
Instructions:
1. Open JetBrains Toolbox App. 2. Click on the settings/gear icon. 3. Select 'Update' or check for updates. 4. Install version 2.6 or later. 5. Restart the Toolbox App.
🔧 Temporary Workarounds
Disable SSH Plugin
allTemporarily disable the SSH plugin in JetBrains Toolbox App to prevent unauthorized connections.
Remove SSH Plugin
allCompletely remove the SSH plugin from JetBrains Toolbox App.
🧯 If You Can't Patch
- Disable or remove the SSH plugin from JetBrains Toolbox App.
- Implement strict SSH key management and network segmentation to limit potential impact.
🔍 How to Verify
Check if Vulnerable:
Check JetBrains Toolbox App version in settings. If version is below 2.6 and SSH plugin is installed/enabled, the system is vulnerable.Check Version:
Check version in JetBrains Toolbox App settings interface (no CLI command available).Verify Fix Applied:
Verify JetBrains Toolbox App version is 2.6 or higher in the application settings.📡 Detection & Monitoring
Log Indicators:
- Unexpected SSH connection attempts originating from systems running JetBrains Toolbox App
- SSH authentication logs showing connections from unexpected Toolbox App instances
Network Indicators:
- SSH traffic from workstations/dev machines to unexpected destinations
- SSH connections without corresponding user SSH client activity
SIEM Query:
source="ssh_logs" AND (process="jetbrains-toolbox" OR user_agent CONTAINS "JetBrains")