CVE-2023-1306
📋 TL;DR
This vulnerability allows authenticated attackers to execute arbitrary Python code through Jinja template injection via an exposed resource.db() method in InsightCloudSec. It affects self-managed versions before 23.2.1 and was fixed in managed/SaaS deployments on February 1, 2023.
💻 Affected Systems
- Rapid7 InsightCloudSec (formerly DivvyCloud)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the InsightCloudSec instance and potentially underlying infrastructure.
Likely Case
Data exfiltration, privilege escalation, and lateral movement within the cloud environment managed by InsightCloudSec.
If Mitigated
Limited impact if proper network segmentation and least privilege access controls are implemented.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once authenticated. Public technical details and proof-of-concept information are available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 23.2.1
Vendor Advisory: https://docs.divvycloud.com/changelog/23321-release-notes
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download version 23.2.1 from Rapid7 portal. 3. Stop InsightCloudSec services. 4. Apply the update following Rapid7's upgrade documentation. 5. Restart services and verify functionality.
🔧 Temporary Workarounds
Restrict Access Controls
allLimit authenticated user access to only necessary personnel and implement network segmentation.
Monitor for Suspicious Activity
allImplement enhanced logging and monitoring for unusual Jinja template usage or resource.db() method calls.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate InsightCloudSec from critical systems
- Apply principle of least privilege to all user accounts and monitor for suspicious authentication patterns
🔍 How to Verify
Check if Vulnerable:
Check InsightCloudSec version via web interface or configuration files. Versions before 23.2.1 are vulnerable.Check Version:
Check web interface admin panel or configuration files for version informationVerify Fix Applied:
Confirm version is 23.2.1 or later and test that resource.db() method no longer accepts arbitrary Python method calls in Jinja templates.📡 Detection & Monitoring
Log Indicators:
- Unusual Jinja template rendering errors
- Suspicious resource.db() method calls in application logs
- Authentication from unexpected locations
Network Indicators:
- Unusual outbound connections from InsightCloudSec instance
- Traffic patterns suggesting data exfiltration
SIEM Query:
source="insightcloudsec" AND (resource.db() OR jinja) AND status=error