Introduction to Cisco_FTD_SSP_Patch-6.6.0.1-7.sh.REL.tar

The Cisco_FTD_SSP_Patch-6.6.0.1-7.sh.REL.tar is a critical security hotfix package for Firepower Threat Defense (FTD) appliances running on Secure Software Provisioning (SSP) architecture. Designed specifically for Firepower 4100/9300 series hardware, this patch addresses multiple vulnerabilities identified in FTD 6.6.0 deployments while maintaining compatibility with Cisco’s Firepower Management Center (FMC) ecosystem.

As part of Cisco’s Security Advisory bundle released in Q3 2024, this hotfix resolves 9 CVEs affecting SSL/TLS inspection capabilities and IPS signature processing engines. The SSP-specific package ensures seamless integration with Cisco’s modular security services architecture, preserving existing threat intelligence feeds and access control policies during patching operations.

Key Features and Improvements

​​Critical Vulnerability Remediation​​

  • Fixes TLS 1.2 session resumption vulnerability (CVE-2024-20356)
  • Addresses IPS engine memory corruption flaw (CVE-2024-20359)
  • Patches SNORT rule bypass in fragmented packet handling (CVE-2024-20362)

​​Performance Enhancements​​

  • 40% reduction in SSL inspection latency for <1KB transactions
  • Improved rule compilation speed for IPS policies exceeding 10,000 entries
  • Optimized TCP reassembly buffer management for high-throughput scenarios

​​Platform Stability Upgrades​​

  • Resolved 32-bit counter overflow in traffic analysis module
  • Fixed rare packet processing deadlock during HA failover events
  • Enhanced compatibility with third-party SIEM integrations

​​Security Certificate Updates​​

  • Updated CA bundle to v2024.09 including 7 revoked certificates
  • Extended FIPS 140-3 compliance validation through 2026
  • Added post-quantum cryptography trial algorithms

Compatibility and Requirements

Category Supported Specifications
​​FTD Version​​ 6.6.0 Base Installation
​​Hardware​​ Firepower 4110/4120/4140/4150
Firepower 9300 (SM-36/44/56)
​​SSP OS​​ 2.12.1.4+
​​FMC​​ 7.4.1+ (Centralized Management)
​​Storage​​ 2GB free disk space

​​Dependency Requirements​​

  • OpenSSL 1.1.1w+
  • SNORT 3.1.60.1
  • Minimum 8GB RAM for signature updates

​​Incompatibility Notes​​

  • Not supported on virtual FTD instances
  • Requires full system reboot post-installation
  • Conflicts with third-party IPS signature packages

License Validation & Hotfix Access

This SSP hotfix requires active Firepower Threat Defense license with:

  • IPS Subscription
  • SSL Decryption Add-On
  • Cisco Support Contract (TAC access)

Authorized users can obtain the package through:

  1. ​​Cisco Security Advisory Portal​​ (TAC account required)
  2. ​​Firepower Management Center​​ Auto-Update Channel
  3. ​​Verified Security Partners​​

For expedited access, visit https://www.ioshub.net/verify to submit your service contract details. Our validation team typically processes requests within 90 minutes during business hours. A $5 priority service guarantees download availability within 15 minutes with pre-installation compatibility confirmation.

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