CVE-2024-31866
📋 TL;DR
This vulnerability in Apache Zeppelin allows attackers to execute arbitrary shell scripts or malicious code by manipulating configuration variables like ZEPPELIN_INTP_CLASSPATH_OVERRIDES. It affects Apache Zeppelin versions from 0.8.2 up to, but not including, 0.11.1, potentially compromising systems running these versions.
💻 Affected Systems
- Apache Zeppelin
📦 What is this software?
Zeppelin by Apache
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution, leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Unauthorized execution of shell commands, resulting in data exfiltration, service disruption, or installation of backdoors.
If Mitigated
Limited impact if strict network segmentation and access controls prevent exploitation, though risk remains if vulnerable versions are exposed.
🎯 Exploit Status
Exploitation likely requires some level of access to modify configurations, but details are not publicly confirmed; CVSS 9.8 suggests high severity and ease of exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.11.1
Vendor Advisory: https://lists.apache.org/thread/jpkbq3oktopt34x2n5wnhzc2r1410ddd
Restart Required: Yes
Instructions:
1. Backup current Zeppelin configuration and data. 2. Download Apache Zeppelin version 0.11.1 from the official Apache website. 3. Stop the Zeppelin service. 4. Replace the existing installation with version 0.11.1. 5. Restart the Zeppelin service and verify functionality.
🔧 Temporary Workarounds
Restrict Configuration Access
linuxLimit access to Zeppelin configuration files and environment variables to prevent unauthorized modifications.
chmod 600 /path/to/zeppelin/conf/*
setfacl -m u:zeppelin:rwx /path/to/zeppelin/conf/
🧯 If You Can't Patch
- Implement strict network access controls to isolate Zeppelin instances from untrusted networks.
- Monitor and audit configuration changes and shell command executions for suspicious activity.
🔍 How to Verify
Check if Vulnerable:
Check the Zeppelin version by running: grep -i version /path/to/zeppelin/VERSION or view the web interface. If version is between 0.8.2 and 0.11.0 inclusive, it is vulnerable.Check Version:
cat /path/to/zeppelin/VERSIONVerify Fix Applied:
After upgrading, confirm the version is 0.11.1 or higher using the same command and test functionality to ensure no regression.📡 Detection & Monitoring
Log Indicators:
- Unusual shell command executions in system logs
- Modifications to Zeppelin configuration files or environment variables
Network Indicators:
- Unexpected outbound connections from Zeppelin servers to external IPs
SIEM Query:
source="zeppelin_logs" AND (event="command_execution" OR event="config_modification")🔗 References
- http://www.openwall.com/lists/oss-security/2024/04/09/10
- https://github.com/apache/zeppelin/pull/4715
- https://lists.apache.org/thread/jpkbq3oktopt34x2n5wnhzc2r1410ddd
- http://www.openwall.com/lists/oss-security/2024/04/09/10
- https://github.com/apache/zeppelin/pull/4715
- https://lists.apache.org/thread/jpkbq3oktopt34x2n5wnhzc2r1410ddd
