CVE-2024-53246
📋 TL;DR
This CVE describes an information disclosure vulnerability in Splunk Enterprise and Splunk Cloud Platform where SPL commands can potentially expose sensitive data. The vulnerability requires chaining with another exploit like a Risky Commands Bypass for successful exploitation. Organizations running affected Splunk versions are at risk of sensitive information leakage.
💻 Affected Systems
- Splunk Enterprise
- Splunk Cloud Platform
📦 What is this software?
Splunk by Splunk
Splunk by Splunk
Splunk by Splunk
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access and exfiltrate sensitive configuration data, credentials, or other confidential information stored in Splunk, potentially leading to further system compromise.
Likely Case
Limited information disclosure requiring attacker to first exploit another vulnerability, making successful exploitation less common but still possible in poorly secured environments.
If Mitigated
With proper access controls and security monitoring, the impact is minimal as the vulnerability requires chaining with another exploit.
🎯 Exploit Status
Exploitation requires chaining with another vulnerability, increasing the complexity but not making it impossible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Splunk Enterprise: 9.3.2, 9.2.4, 9.1.7; Splunk Cloud Platform: 9.3.2408.101, 9.2.2406.106, 9.2.2403.111, 9.1.2312.206
Vendor Advisory: https://advisory.splunk.com/advisories/SVD-2024-1204
Restart Required: Yes
Instructions:
1. Backup Splunk configuration and data. 2. Download appropriate patch version from Splunk downloads. 3. Stop Splunk services. 4. Apply patch following Splunk upgrade documentation. 5. Restart Splunk services. 6. Verify successful upgrade.
🔧 Temporary Workarounds
Restrict SPL Command Execution
allImplement role-based access controls to limit who can execute SPL commands, especially risky commands.
Enable Risky Commands Protection
allEnsure Risky Commands protection is enabled and properly configured to prevent bypass attempts.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Splunk instances from untrusted networks
- Enhance monitoring for unusual SPL command execution patterns and access attempts
🔍 How to Verify
Check if Vulnerable:
Check Splunk version via web interface or CLI and compare against affected versions list.Check Version:
splunk versionVerify Fix Applied:
Verify Splunk version matches or exceeds patched versions after upgrade.📡 Detection & Monitoring
Log Indicators:
- Unusual SPL command execution patterns
- Failed authentication attempts followed by SPL command execution
- Access to sensitive data sources via SPL
Network Indicators:
- Unexpected outbound data transfers from Splunk instances
- Connection attempts to external systems from Splunk
SIEM Query:
index=_audit action=search search=*sensitive* OR search=*password* OR search=*credential* | stats count by user, search