CVE-2023-1304
📋 TL;DR
This vulnerability allows authenticated attackers to execute arbitrary OS commands through Jinja template injection 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
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining root/administrator access to the InsightCloudSec host, allowing data theft, lateral movement, and persistent backdoor installation.
Likely Case
Unauthorized command execution leading to data exfiltration, privilege escalation, and potential compromise of cloud infrastructure managed by InsightCloudSec.
If Mitigated
Limited impact with proper network segmentation and least-privilege authentication, potentially only affecting the InsightCloudSec application itself.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once credentials are obtained. Public exploit details 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. Follow InsightCloudSec upgrade documentation for your deployment type. 4. Restart services after upgrade completion.
🔧 Temporary Workarounds
Restrict Authentication Access
allLimit which users can authenticate to InsightCloudSec to reduce attack surface
Network Segmentation
allIsolate InsightCloudSec management interface from general network access
🧯 If You Can't Patch
- Implement strict access controls and monitor all authentication attempts to InsightCloudSec
- Deploy application-level firewall rules to block suspicious template-related requests
🔍 How to Verify
Check if Vulnerable:
Check InsightCloudSec version via web interface or API. Versions before 23.2.1 are vulnerable.Check Version:
curl -k https://<insightcloudsec-host>/api/version or check web interfaceVerify Fix Applied:
Confirm version is 23.2.1 or later and test that Jinja template injection no longer allows command execution.📡 Detection & Monitoring
Log Indicators:
- Unusual Jinja template usage patterns
- Unexpected OS command execution from InsightCloudSec processes
- Multiple failed authentication attempts followed by successful login
Network Indicators:
- Unusual outbound connections from InsightCloudSec host
- Command and control traffic patterns
SIEM Query:
source="insightcloudsec" AND (template* OR getattr* OR os.system*)