CVE-2023-28502
📋 TL;DR
This CVE describes a critical stack-based buffer overflow vulnerability in Rocket Software's UniData and UniVerse database management systems. Attackers can exploit the 'udadmin' service remotely to execute arbitrary code with root privileges. Organizations running vulnerable versions of these products are at immediate risk.
💻 Affected Systems
- Rocket Software UniData
- Rocket Software UniVerse
📦 What is this software?
Unidata by Rocketsoftware
Universe by Rocketsoftware
Universe by Rocketsoftware
⚠️ Risk & Real-World Impact
Worst Case
Remote attacker gains full root-level control over the database server, enabling data theft, destruction, or lateral movement within the network.
Likely Case
Remote code execution leading to complete system compromise, data exfiltration, and potential ransomware deployment.
If Mitigated
Limited impact if proper network segmentation and least privilege controls prevent lateral movement and data access.
🎯 Exploit Status
Public exploit code is available, making this easily weaponizable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: UniData 8.2.4 build 3003 or later; UniVerse 11.3.5 build 1001 or later, or 12.2.1 build 2002 or later
Vendor Advisory: https://www.rocketsoftware.com/support
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Rocket Software support portal. 2. Apply the patch according to vendor documentation. 3. Restart the UniData/UniVerse services. 4. Verify the patch is applied correctly.
🔧 Temporary Workarounds
Disable udadmin service
linuxTemporarily disable the vulnerable udadmin service if patching cannot be immediately performed.
sudo systemctl stop udadmin
sudo systemctl disable udadmin
Network segmentation
linuxRestrict network access to the vulnerable service using firewall rules.
iptables -A INPUT -p tcp --dport [udadmin_port] -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted IPs only.
- Monitor for exploitation attempts using the detection indicators provided below.
🔍 How to Verify
Check if Vulnerable:
Check the version of UniData/UniVerse installed and compare against affected versions.Check Version:
udt version (for UniData) or uv version (for UniVerse)Verify Fix Applied:
Verify the installed version matches or exceeds the patched versions listed above.📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from udadmin service
- Buffer overflow errors in system logs
- Root privilege escalation attempts
Network Indicators:
- Unusual network traffic to udadmin service port
- Exploit pattern matches from public PoCs
SIEM Query:
source="*udadmin*" AND (event="buffer overflow" OR event="segmentation fault")🔗 References
- http://packetstormsecurity.com/files/171853/Rocket-Software-Unidata-8.2.4-Build-3003-Buffer-Overflow.html
- https://www.rapid7.com/blog/post/2023/03/29/multiple-vulnerabilities-in-rocket-software-unirpc-server-fixed/
- http://packetstormsecurity.com/files/171853/Rocket-Software-Unidata-8.2.4-Build-3003-Buffer-Overflow.html
- https://www.rapid7.com/blog/post/2023/03/29/multiple-vulnerabilities-in-rocket-software-unirpc-server-fixed/
