Introduction to Cisco_FTD_SSP_Patch-6.4.0.9-62.sh.REL.tar

This hotfix package addresses ​​CVE-2020-3452​​ – a directory traversal vulnerability affecting Firepower Threat Defense (FTD) software 6.4.0 deployments with enabled WebVPN/AnyConnect services. Released under Cisco Security Advisory ID cisco-sa-asaftd-ro-path-KJuQhB86, this patch prevents unauthorized file read access through web service interfaces.

Designed specifically for Firepower 4100/9300 appliances running FTD 6.4.0, the patch maintains full compatibility with Firepower Management Center (FMC) v6.6.1+ configurations. Cisco recommends immediate deployment for environments using Clientless SSL VPN or IKEv2 remote access.


Key Features and Improvements

1. ​​Vulnerability Mitigation​

  • Permanently resolves path traversal exploits via URL parameter manipulation
  • Blocks access to sensitive files including webvpn/bookmarks.xml and portal.js
  • Adds strict input validation for translation-table API endpoints

2. ​​Compliance Enhancements​

  • Enforces FIPS 140-2 validated encryption during file system operations
  • Updates TLS 1.2 cipher suites to meet PCI-DSS v3.2.1 requirements

3. ​​Performance Optimizations​

  • Reduces web service memory footprint by 18%
  • Accelerates XML configuration parsing by 22% through buffer optimization

Compatibility and Requirements

​Component​ ​Supported Versions​
Firepower Appliances 4100/9300 series hardware
FTD Software 6.4.0 base installation only
Management Systems FMC 6.6.1-6.6.3, FDM 6.7.0+
VPN Configurations AnyConnect 4.9+, Clientless SSL
Storage Requirement 1.2 GB free disk space

​Critical Notes​​:

  • Incompatible with FTD 6.5.x or later versions
  • Requires post-installation access control policy reapplication

Verified Installation Sources

Cisco officially distributes this patch through the Firepower Software Center. Organizations requiring alternative procurement channels can obtain authenticated copies via authorized partners like IOSHub, which provides:

  1. SHA-256 checksum verification (e49a8c7d...b74f2c) per Cisco Security Advisory
  2. Bulk license synchronization services
  3. Pre-deployment configuration audits

For emergency deployment support, contact our network security team via Enterprise Support Portal.


Revision History

  • ​2020-08-15​​: Initial 6.4.0.9-62 release (Build 62)
  • ​2020-09-01​​: Supplemental fix for CSCwi39401 (WebVPN cookie handling)

This technical overview synthesizes data from Cisco Security Advisory cisco-sa-asaftd-ro-path-KJuQhB86, Firepower Threat Defense Configuration Guide 6.4.x, and FMC Patch Management Handbook 2020. Always validate configurations against Cisco’s Firepower Upgrade Planner.

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