CVE-2024-34529
📋 TL;DR
Nebari versions through 2024.4.1 expose the temporary Keycloak root password in deployment logs. This information disclosure vulnerability allows attackers with access to logs to obtain sensitive credentials. Organizations using affected Nebari deployments are at risk.
💻 Affected Systems
- Nebari
⚠️ 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
Attackers obtain Keycloak admin credentials, gain full control over authentication/authorization systems, and potentially compromise all user accounts and sensitive data.
Likely Case
Unauthorized users with log access capture the temporary password before it's rotated, gaining administrative access to Keycloak and potentially other integrated systems.
If Mitigated
With proper log access controls and monitoring, the exposed password is detected and invalidated before exploitation occurs.
🎯 Exploit Status
Exploitation requires access to deployment logs where the password is printed. No authentication bypass needed if logs are accessible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2024.4.2 or later
Vendor Advisory: https://github.com/nebari-dev/nebari/issues/2282
Restart Required: Yes
Instructions:
1. Update Nebari to version 2024.4.2 or later. 2. Redeploy affected Nebari instances. 3. Rotate all Keycloak passwords that may have been exposed in logs.
🔧 Temporary Workarounds
Restrict Log Access
linuxImmediately restrict access to deployment logs and monitor for unauthorized access attempts.
# Set appropriate permissions on log directories
chmod 640 /var/log/nebari/*
# Implement log monitoring
auditctl -w /var/log/nebari/ -p wa -k nebari_logs
Manual Password Rotation
allManually rotate Keycloak root passwords and any other credentials that may have been exposed.
# Access Keycloak admin console and change passwords
# Use Keycloak CLI: kcadm.sh config credentials --server http://localhost:8080/auth --realm master --user admin --password OLD_PASSWORD
kcadm.sh set-password -r master --username admin --new-password NEW_SECURE_PASSWORD
🧯 If You Can't Patch
- Implement strict access controls on all log storage and monitoring systems
- Deploy a SIEM solution to detect and alert on access to Nebari deployment logs
🔍 How to Verify
Check if Vulnerable:
Check Nebari version and examine deployment logs for Keycloak password exposure. Run: nebari --version and grep deployment logs for 'password' or 'Keycloak'.Check Version:
nebari --versionVerify Fix Applied:
Verify Nebari version is 2024.4.2 or later and confirm no passwords appear in new deployment logs.📡 Detection & Monitoring
Log Indicators:
- Keycloak password strings in deployment logs
- Unauthorized access to log files containing 'deploy.py' output
- Failed login attempts followed by successful Keycloak admin access
Network Indicators:
- Unexpected connections to Keycloak admin interface from new IPs
- Increased authentication traffic to Keycloak
SIEM Query:
source="nebari_logs" AND "password" AND "Keycloak" OR source="auth_logs" AND user="admin" AND src_ip NOT IN (allowed_ips)🔗 References
- https://github.com/nebari-dev/nebari/blob/5463e8df9e8d53a266a7b9d3d4e27353ec43c40b/src/_nebari/deploy.py#L71
- https://github.com/nebari-dev/nebari/issues/2282
- https://github.com/nebari-dev/nebari/blob/5463e8df9e8d53a266a7b9d3d4e27353ec43c40b/src/_nebari/deploy.py#L71
- https://github.com/nebari-dev/nebari/issues/2282
