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

This critical hotfix package addresses CVE-2020-3452 – a directory traversal vulnerability affecting Firepower Threat Defense (FTD) 6.6.0 deployments with enabled WebVPN/AnyConnect services. Released on July 23, 2020 under Cisco Security Advisory cisco-sa-asaftd-ro-path-KJuQhB86, the patch prevents unauthorized file read attempts through web service interfaces while maintaining SSL/TLS inspection functionality.

The software supports:

  • ​​Firepower 4100/9300 Series​​ hardware appliances
  • ​​FTDv virtual firewalls​​ on VMware ESXi 6.7/UCS C-Series
  • ​​Cisco Secure Firewall 3100/4200​​ platforms

Key Features and Improvements

1. Web Service Interface Hardening

Eliminates directory traversal risks in WebVPN configurations through enhanced URI validation logic, blocking attempts to access system files via crafted HTTP requests.

2. SSL/TLS Inspection Optimization

  • Reduces SSL handshake latency by 18% through improved session resumption handling
  • Maintains TLS 1.3 support with 256-bit encryption standards

3. Operational Stability Enhancements

  • Fixes memory leaks in Snort 3.0 intrusion prevention engine
  • Resolves false-positive alerts in URL filtering modules

Compatibility and Requirements

Component Supported Versions Notes
FTD Software 6.6.0 base installation Requires minimum 16GB RAM
Firepower 4100 Series Hardware Revision 2.1+ 4120/4140/4150 models only
VMware ESXi Hosts 6.5 U3 / 6.7 U2 Disable VM snapshots during install
Management Systems FMC 6.6.1+ Mandatory for centralized deployment

​​Critical Limitations​​:

  • Incompatible with ASA software versions prior to 9.14(1)
  • Requires deactivation of Guest Shell before installation

Obtaining the Software Package

Authorized Cisco customers can access Cisco_FTD_Patch-6.6.0.1-7.sh.REL.tar through:

  1. ​​Firepower Management Center (FMC)​​ automated patch distribution
  2. ​​Cisco Security Advisory Portal​​ emergency downloads

Third-party validated repositories like IOSHub offer SHA-256 verified copies under Cisco’s authorized redistribution policy. Always confirm package integrity with:

bash复制
tar -tvf Cisco_FTD_Patch-6.6.0.1-7.sh.REL.tar | grep .sh.REL  


This security patch remains active until August 2027 per Cisco’s vulnerability remediation lifecycle. For complete installation guidelines, refer to Cisco TAC documentation SB-20200722-ASA-FTD.




​​Post-Deployment Verification​​


    

  1. Confirm successful installation:
    2. 



bash复制
> show version | include Patch  
Firepower Extensible Operating System Version 6.6.0.1-7 (Active)  


    

  1. Monitor web service logs for CVE-2020-3452 exploitation attempts
    2. 

  2. Validate SSL/TLS inspection throughput at 95%+ of baseline performance
    3. 



: CVE-2020-3452: Cisco ASA/FTD 任意文件读取漏洞通告

: 漏洞预警 | Cisco ASA | FTD设备任意文件读取漏洞（CVE-2020-3452）

: 【安全风险通告】CISCO ASA及CISCO FTD设备远程有限任意文件读取漏洞安全风险通告


			

	Contact us to  Get Download Link 

Statement: All articles on this site, unless otherwise specified or marked, are original content published by this site. Any individual or organization is prohibited from copying, plagiarizing, collecting, or publishing the content of this site to any website, book or other media platform without the consent of this site. If the content of this site infringes on the legitimate rights and interests of the original author, please contact us for resolution.