CVE-2024-30259
📋 TL;DR
CVE-2024-30259 is a heap buffer overflow vulnerability in FastDDS that allows remote attackers to crash Fast-DDS processes by sending malformed RTPS packets. This can lead to denial of service attacks against systems using vulnerable FastDDS implementations. Any organization using FastDDS for data distribution in industrial, automotive, or IoT applications is potentially affected.
💻 Affected Systems
- FastDDS (eProsima Fast DDS)
📦 What is this software?
Fast Dds by Eprosima
Fast Dds by Eprosima
Fast Dds by Eprosima
Fast Dds by Eprosima
⚠️ Risk & Real-World Impact
Worst Case
Complete denial of service for all FastDDS-dependent systems, potentially disrupting critical operations in industrial control, automotive, or IoT environments where data distribution is essential.
Likely Case
Service disruption and system crashes affecting data distribution services, requiring manual intervention to restart affected processes.
If Mitigated
Minimal impact with proper network segmentation and monitoring, though systems remain vulnerable to targeted attacks.
🎯 Exploit Status
The vulnerability requires sending malformed RTPS packets to a subscriber, which is straightforward for attackers familiar with the protocol. No authentication is required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.14.1, 2.13.5, 2.10.4, or 2.6.8
Vendor Advisory: https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-qcj9-939p-p662
Restart Required: Yes
Instructions:
1. Identify your current FastDDS version
2. Upgrade to the appropriate patched version: 2.14.1, 2.13.5, 2.10.4, or 2.6.8
3. Recompile and rebuild any applications using FastDDS
4. Restart all FastDDS-dependent services
🔧 Temporary Workarounds
Network Segmentation
linuxIsolate FastDDS traffic to trusted networks only
iptables -A INPUT -p tcp --dport 7400 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 7400 -j DROP
Rate Limiting
linuxLimit RTPS packet processing rate to reduce impact
tc qdisc add dev eth0 root tbf rate 10mbit burst 32kbit latency 400ms
🧯 If You Can't Patch
- Implement strict network access controls to limit RTPS traffic to trusted sources only
- Deploy intrusion detection systems to monitor for malformed RTPS packets and alert on suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check FastDDS version against vulnerable ranges: versions <2.14.1, <2.13.5, <2.10.4, and <2.6.8Check Version:
fastdds --version or check build configuration filesVerify Fix Applied:
Confirm version is 2.14.1, 2.13.5, 2.10.4, or 2.6.8 and test with RTPS packet fuzzing tools📡 Detection & Monitoring
Log Indicators:
- Segmentation fault or crash logs from FastDDS processes
- Abnormal termination of FastDDS subscriber processes
- Memory allocation errors in system logs
Network Indicators:
- Unusual RTPS packet patterns from untrusted sources
- High volume of malformed RTPS packets
- Traffic spikes on RTPS ports (typically 7400)
SIEM Query:
process_name="fastdds" AND (event_type="crash" OR event_type="segfault")🔗 References
- https://drive.google.com/file/d/1Y2bGvP3UIOJCLh_XEURLdhrM2Sznlvlp/view?usp=sharing
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-qcj9-939p-p662
- https://vimeo.com/907641887?share=copy
- https://drive.google.com/file/d/1Y2bGvP3UIOJCLh_XEURLdhrM2Sznlvlp/view?usp=sharing
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-qcj9-939p-p662
- https://vimeo.com/907641887?share=copy
