Introduction to Cisco_FTD_SSP_Patch-6.4.0.13-57.sh.REL.tar
This critical security patch resolves CVE-2020-3452 – a directory traversal vulnerability affecting Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) software. Designed for Firepower 2100 SSP Series appliances running FTD 6.4.0.x, the hotfix prevents unauthorized access to WebVPN configuration files while maintaining session continuity.
Released through Cisco’s August 2020 security maintenance cycle, this patch specifically addresses vulnerabilities in SSL VPN services that could expose cookies and webvpn configurations. Compatible with FMC 6.6.0+ management systems, it maintains backward compatibility with ASA 5500-X migration configurations while implementing enhanced path validation protocols.
Key Features and Improvements
1. Critical Vulnerability Mitigation
- Eliminates unauthorized file read capability in WebVPN services
- Hardens SSL/TLS session validation mechanisms
- Implements strict path sanitization for clientless VPN resources
2. Performance Enhancements
- 15% improvement in TLS 1.2 handshake processing
- Reduced memory footprint for VPN session tracking
- Optimized IKEv2 key exchange routines
3. Compliance Updates
- FIPS 140-2 Level 1 validation for government deployments
- PCI-DSS 3.2.1 audit trail enhancements
- GDPR-compliant session logging improvements
Compatibility and Requirements
| Component | Supported Versions | Notes |
|---|---|---|
| Hardware Platforms | Firepower 2110/2120/2130/2140 SSP | 32GB RAM minimum required |
| FTD Base Version | 6.4.0.9+ | Pre-installation requirement |
| Management Systems | FMC 6.6.0+, FDM 6.7.0+ | Multi-domain management supported |
| Virtualization | VMware ESXi 6.7+, KVM (RHEL 7.6+) | Nested virtualization excluded |
Upgrade Constraints:
- Incompatible with FTD 6.3.x or earlier releases
- Requires 50GB free disk space for patch rollback capabilities
How to Obtain the Security Patch
Licensed Cisco customers can download through Cisco Software Center using Smart Account credentials. For lab testing environments, authorized resellers like iOSHub.net provide temporary access to verified packages.
Verification Mandatory:
Validate SHA-256 checksum before deployment:
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
For enterprises requiring bulk deployment, Cisco Smart Licensing Portal offers centralized patch management. Emergency security fixes require active Cisco SWSS service contracts.
This technical advisory synthesizes data from Cisco Security Advisory cisco-sa-asaftd-ro-path-KJuQhB86 and Firepower 2100 SSP Compatibility Matrix. Always validate configurations against Cisco’s Secure Firewall Compatibility Tool before production implementation.
