CVE-2024-0801
📋 TL;DR
A denial of service vulnerability in Arcserve Unified Data Protection's ASNative.dll allows attackers to crash the service by sending specially crafted requests. This affects organizations using Arcserve UDP 9.2 and 8.1 for backup and recovery operations.
💻 Affected Systems
- Arcserve Unified Data Protection
📦 What is this software?
Udp by Arcserve
Udp by Arcserve
⚠️ Risk & Real-World Impact
Worst Case
Complete service disruption of Arcserve UDP, preventing backup and recovery operations until service restart.
Likely Case
Temporary service outage requiring manual intervention to restart affected components.
If Mitigated
Minimal impact with proper network segmentation and monitoring to detect and respond to attack attempts.
🎯 Exploit Status
Based on CWE-75 (Failure to Sanitize Special Elements), exploitation likely involves sending malformed data to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Arcserve security advisory for specific patched versions
Vendor Advisory: https://www.arcserve.com/support-resources/security-advisories
Restart Required: Yes
Instructions:
1. Check Arcserve security advisory for specific patch details. 2. Download and apply the official patch from Arcserve. 3. Restart Arcserve UDP services. 4. Verify service functionality post-patch.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Arcserve UDP management interfaces to trusted networks only.
Configure firewall rules to limit inbound connections to Arcserve UDP ports from authorized IP ranges only.
Service Monitoring
windowsImplement monitoring to detect and alert on Arcserve UDP service crashes.
Configure monitoring tools to alert on Arcserve UDP service state changes and restart services automatically if possible.
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach Arcserve UDP interfaces.
- Increase monitoring and logging of Arcserve UDP services to detect and respond quickly to any service disruptions.
🔍 How to Verify
Check if Vulnerable:
Check Arcserve UDP version in administration console or via installed programs list in Windows.Check Version:
Check Arcserve UDP version in Control Panel > Programs and Features or via Arcserve UDP administration console.Verify Fix Applied:
Verify patch installation through Arcserve UDP administration interface and confirm service stability under normal operation.📡 Detection & Monitoring
Log Indicators:
- Arcserve UDP service crash logs
- Unexpected service termination events in Windows Event Logs
- Failed backup job alerts
Network Indicators:
- Unusual traffic patterns to Arcserve UDP management ports
- Multiple connection attempts to vulnerable endpoints
SIEM Query:
EventID: 7034 OR EventID: 6008 OR Source: 'Arcserve' AND (EventType: 'Error' OR EventType: 'Critical')