CVE-2024-31850
📋 TL;DR
An unauthenticated path traversal vulnerability in CData Arc Java versions before 23.4.8839 allows remote attackers to access sensitive files and perform limited actions when using the embedded Jetty server. This affects all deployments running vulnerable versions with the embedded server enabled.
💻 Affected Systems
- CData Arc
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through sensitive file disclosure (configuration files, credentials, source code) leading to lateral movement or data exfiltration.
Likely Case
Unauthenticated attackers reading sensitive configuration files, application logs, or limited file upload/modification in accessible directories.
If Mitigated
Minimal impact if proper network segmentation and access controls prevent external access to vulnerable instances.
🎯 Exploit Status
Path traversal vulnerabilities typically have low exploitation complexity. No public exploit code identified at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 23.4.8839
Vendor Advisory: https://www.tenable.com/security/research/tra-2024-09
Restart Required: Yes
Instructions:
1. Download CData Arc version 23.4.8839 or later from official vendor sources. 2. Backup current installation and configuration. 3. Stop the CData Arc service. 4. Install the updated version. 5. Restart the service. 6. Verify successful upgrade.
🔧 Temporary Workarounds
Disable Embedded Jetty Server
allSwitch to using a different web server or deployment method instead of the embedded Jetty server.
Consult CData Arc documentation for alternative deployment configurations
Network Access Controls
linuxRestrict network access to CData Arc instances using firewalls or network segmentation.
iptables -A INPUT -p tcp --dport [CData_Arc_port] -s [trusted_networks] -j ACCEPT
iptables -A INPUT -p tcp --dport [CData_Arc_port] -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable instances from untrusted networks
- Deploy web application firewall (WAF) with path traversal protection rules
🔍 How to Verify
Check if Vulnerable:
Check CData Arc version via web interface or configuration files. If version is below 23.4.8839 and using embedded Jetty, system is vulnerable.Check Version:
Check web interface or consult CData Arc documentation for version checking methodVerify Fix Applied:
Verify version is 23.4.8839 or higher and test path traversal attempts return proper error responses.📡 Detection & Monitoring
Log Indicators:
- Multiple 400/404 errors with path traversal patterns (../, ..\)
- Unusual file access patterns from external IPs
Network Indicators:
- HTTP requests containing path traversal sequences to CData Arc endpoints
SIEM Query:
source="CData_Arc_logs" AND (uri="*../*" OR uri="*..\*") AND response_code=200