CVE-2024-53247
📋 TL;DR
This vulnerability allows low-privileged users without admin or power roles to execute arbitrary code remotely on affected Splunk systems. It affects Splunk Enterprise versions below 9.3.2, 9.2.4, and 9.1.7, and Splunk Secure Gateway app versions below 3.4.261 and 3.7.13 on Splunk Cloud Platform.
💻 Affected Systems
- Splunk Enterprise
- Splunk Secure Gateway app on Splunk Cloud Platform
⚠️ 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
Full system compromise with attacker gaining administrative control over the Splunk instance, potentially leading to data exfiltration, lateral movement, or deployment of persistent malware.
Likely Case
Privilege escalation leading to unauthorized access to sensitive log data, configuration manipulation, or installation of malicious apps/scripts.
If Mitigated
Limited impact if proper network segmentation, least privilege access controls, and monitoring are in place to detect and block exploitation attempts.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access; CWE-502 suggests deserialization vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Splunk Enterprise: 9.3.2, 9.2.4, 9.1.7; Splunk Secure Gateway: 3.4.261, 3.7.13
Vendor Advisory: https://advisory.splunk.com/advisories/SVD-2024-1205
Restart Required: Yes
Instructions:
1. Backup your Splunk configuration and data. 2. Download the appropriate patched version from Splunk's website. 3. Follow Splunk's upgrade documentation for your deployment type. 4. Restart Splunk services after upgrade.
🔧 Temporary Workarounds
Restrict user privileges
allReview and minimize low-privileged user accounts; ensure only necessary users have access.
Network segmentation
allIsolate Splunk instances from sensitive networks and limit inbound access.
🧯 If You Can't Patch
- Implement strict access controls and review all low-privileged user accounts.
- Monitor for suspicious activity and implement network-based intrusion detection.
🔍 How to Verify
Check if Vulnerable:
Check Splunk version via web interface (Settings > Server Info) or command line.Check Version:
On Linux: /opt/splunk/bin/splunk version; On Windows: "C:\Program Files\Splunk\bin\splunk.exe" versionVerify Fix Applied:
Confirm version is at or above patched versions after upgrade.📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from Splunk user accounts
- Unexpected privilege escalation events
- Suspicious deserialization attempts in audit logs
Network Indicators:
- Anomalous outbound connections from Splunk servers
- Unexpected network traffic to/from Splunk management ports
SIEM Query:
source="*splunk*" (eventtype="privilege_escalation" OR "remote_code_execution" OR "deserialization")