CVE-2022-23913
📋 TL;DR
This vulnerability in Apache ActiveMQ Artemis allows attackers to cause a denial-of-service (DoS) condition by consuming excessive memory resources. Systems running vulnerable versions of ActiveMQ Artemis are affected, potentially disrupting message broker availability.
💻 Affected Systems
- Apache ActiveMQ Artemis
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete service disruption of the ActiveMQ Artemis broker, causing message processing to halt and potentially affecting dependent applications.
Likely Case
Partial degradation of service performance, increased latency, and potential broker crashes requiring restart.
If Mitigated
Limited impact with proper resource monitoring and limits in place, though some performance degradation may still occur.
🎯 Exploit Status
The vulnerability involves uncontrolled resource consumption which can be triggered without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.20.0 or 2.19.1
Vendor Advisory: https://lists.apache.org/thread/fjynj57rd99s814rdn5hzvmx8lz403q2
Restart Required: Yes
Instructions:
1. Download Apache ActiveMQ Artemis 2.20.0 or 2.19.1 from the official Apache website. 2. Stop the current ActiveMQ Artemis broker. 3. Backup configuration and data. 4. Install the patched version. 5. Restore configuration and data. 6. Start the updated broker.
🔧 Temporary Workarounds
Implement Resource Limits
allConfigure memory usage limits and monitoring to detect and prevent excessive consumption
Configure memory limits in broker.xml: <max-disk-usage>90</max-disk-usage>
Set memory limit: -Xmx4g (adjust based on your environment)
Network Access Control
linuxRestrict network access to ActiveMQ Artemis broker to trusted sources only
iptables -A INPUT -p tcp --dport 61616 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 61616 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to ActiveMQ Artemis
- Deploy monitoring with alerts for abnormal memory consumption patterns
🔍 How to Verify
Check if Vulnerable:
Check the ActiveMQ Artemis version: grep 'ActiveMQ Artemis' $ARTEMIS_HOME/log/artemis.log | head -1Check Version:
$ARTEMIS_HOME/bin/artemis versionVerify Fix Applied:
Verify the version is 2.20.0 or 2.19.1 or higher: $ARTEMIS_HOME/bin/artemis version📡 Detection & Monitoring
Log Indicators:
- High memory usage warnings in artemis.log
- OutOfMemoryError exceptions
- Frequent garbage collection events
Network Indicators:
- Unusual high volume of connections to broker ports
- Abnormal message traffic patterns
SIEM Query:
source="artemis.log" AND ("OutOfMemory" OR "memory" AND "high" OR "exhausted")