CVE-2025-57564
📋 TL;DR
CVE-2025-57564 allows unauthenticated attackers to inject arbitrary log entries into CubeAPM production systems via the /api/logs/insert/elasticsearch/_bulk endpoint. This log injection vulnerability can lead to log poisoning, alert obfuscation, and performance degradation. All CubeAPM deployments using the affected nightly version are vulnerable.
💻 Affected Systems
- CubeAPM
⚠️ 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 flood systems with false log entries, causing complete observability pipeline failure, alert fatigue that hides real security incidents, and potential denial of service through resource exhaustion.
Likely Case
Attackers inject misleading log entries to obfuscate real attacks, create false alerts, and degrade monitoring system performance.
If Mitigated
With proper authentication and input validation, only authorized users can submit logs with validated content, preventing injection attacks.
🎯 Exploit Status
The vulnerability requires no authentication and simple HTTP POST requests to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Upgrade to a version beyond nightly-2025-08-01-1 when available.
🔧 Temporary Workarounds
Network Access Control
linuxRestrict access to the vulnerable endpoint using firewall rules or network segmentation.
iptables -A INPUT -p tcp --dport <cubeapm_port> -s <trusted_ips> -j ACCEPT
iptables -A INPUT -p tcp --dport <cubeapm_port> -j DROP
Reverse Proxy Authentication
allPlace CubeAPM behind a reverse proxy that requires authentication for the /api/logs/insert/elasticsearch/_bulk endpoint.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate CubeAPM from untrusted networks.
- Deploy a web application firewall (WAF) with rules to block suspicious bulk log insertion requests.
🔍 How to Verify
Check if Vulnerable:
Check if CubeAPM version is nightly-2025-08-01-1 and test if unauthenticated POST requests to /api/logs/insert/elasticsearch/_bulk are accepted.Check Version:
Check CubeAPM configuration files or admin interface for version information.Verify Fix Applied:
Verify CubeAPM version is updated beyond nightly-2025-08-01-1 and test that unauthenticated requests to the endpoint are rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual volume of log entries from single source IPs
- Log entries with suspicious patterns or injection attempts
- Failed authentication attempts on the /api/logs/insert/elasticsearch/_bulk endpoint
Network Indicators:
- High volume of POST requests to /api/logs/insert/elasticsearch/_bulk from external IPs
- Requests to the endpoint without authentication headers
SIEM Query:
source="cubeapm" AND (url_path="/api/logs/insert/elasticsearch/_bulk" AND NOT auth_success="true")