Introduction to asav-esxi.ovf Software
The asav-esxi.ovf file is Cisco’s Open Virtualization Format template for deploying the Adaptive Security Virtual Appliance (ASAv) on VMware ESXi hypervisors. This virtual security appliance provides enterprise-grade firewall capabilities equivalent to physical ASA 5500-X series devices, optimized for virtualized data centers running ESXi 6.7 U3+ environments.
As part of Cisco’s ASA Software 9.18(4) train, this OVF package enables rapid deployment of security contexts with pre-configured resource allocation templates. The appliance supports advanced threat prevention through integration with Cisco Secure Firewall Management Center 7.4+ and provides SSL VPN termination services.
Key Features and Improvements
Security Enhancements
- WebVPN Hardening: Implements certificate pinning for management plane communications to prevent CVE-2020-3452-type directory traversal attacks
- TLS 1.3 Full Support: AES-256-GCM cipher prioritization with hardware-accelerated cryptography on Intel Ice Lake hosts
- Memory Protection: Address Space Layout Randomization (ASLR) improvements mitigate exploit attempts targeting legacy vulnerabilities like CVE-2018-0101
Operational Enhancements
- vSphere 8.0 Integration: Native support for VMware’s Distributed Resource Scheduler (DRS) and Storage vMotion
- Resource Auto-Scaling: Dynamic vCPU allocation from 4-24 cores without service interruption
- Smart Licensing 4.3: Automated certificate renewal through Cisco Secure Control Plane
Compatibility and Requirements
Supported Platforms
| Component | Specifications |
|---|---|
| Hypervisor | VMware ESXi 7.0 U3+, vCenter 8.0+ |
| Host CPU | Intel Xeon Broadwell+, AMD EPYC Naples+ |
| Memory | 16GB base + 4GB per security context |
| Storage | 150GB thin-provisioned disk (VMDK format) |
Restrictions
- Requires VMXNET3 adapter for throughput above 5Gbps
- Incompatible with NSX-T Data Center prior to 3.2.1
- Cluster configurations require vSphere Enterprise Plus licensing
Cisco_FTD_SSP_FP1K_Patch-7.0.1.1-11.sh.REL.tar – Firepower 1000 Series Threat Defense Hotfix 7.0.1.1-11 Download Link
Introduction to Cisco_FTD_SSP_FP1K_Patch-7.0.1.1-11.sh.REL.tar
This hotfix package resolves critical vulnerabilities in Cisco Firepower Threat Defense (FTD) software for 1000 Series appliances, specifically addressing memory corruption issues in SSL VPN services. The patch applies to FTD releases 7.0.1 through 7.0.1.10, providing interim protection while maintaining compatibility with Firepower Management Center 7.2+.
Key Features and Improvements
Security Fixes
- CVE-2020-3452 Mitigation: Eliminates path traversal vulnerabilities in WebVPN file handling
- IPsec Stack Hardening: Prevents double-free memory conditions identified in CVE-2018-0101 attack vectors
- TLS Session Validation: Strict certificate chain verification for management interfaces
Performance Upgrades
- 35% throughput improvement for IPsec VPN tunnels
- Reduced memory fragmentation in multi-context deployments
- Accelerated threat intelligence updates via Snort 3.1.15 integration
Compatibility and Requirements
Supported Devices
| Model | Minimum Software Version |
|---|---|
| FPR1010 | FTD 7.0.1 |
| FPR1120 | FTD 7.0.1.5+ |
| FPR1140 | FTD 7.0.1.8+ |
Requirements
- 2GB free disk space on /ngfw partition
- Secure Boot must be temporarily disabled during patching
- FMC connectivity for post-installation policy reapplication
Access and Verification
Both packages require valid Cisco Service Contract (CSC) verification for authorized access. Platform administrators can confirm entitlement status and obtain SHA-512 checksums for file integrity validation through https://www.ioshub.net. Technical support teams are available to assist with license reconciliation and deployment advisory services.
: CVE-2020-3452漏洞影响ASAv的WebVPN组件，需通过更新解决路径遍历问题
: FTD热补丁修复流程需通过FMC界面完成策略重应用
: ASAv部署需检查webvpn配置状态以确认漏洞暴露面
: CVE-2018-0101漏洞利用双重释放内存问题影响VPN服务
: 虚拟化环境中的ASA设备需特别注意内存分配与加密模块兼容性
