Introduction to “cisco-secure-client-macos-5.1.3.62-vpnapi.tar.gz” Software

The ​​cisco-secure-client-macos-5.1.3.62-vpnapi.tar.gz​​ represents the VPN API module for Cisco Secure Client 5.1.3.62 on macOS systems, designed for developers and network administrators implementing custom VPN solutions. This standalone package enables programmatic control of VPN connections through RESTful APIs while maintaining compatibility with Cisco ASA 5500-X series firewalls and Firepower 4100/9300 chassis.

Released in April 2024 as part of Secure Client 5.1.3.62 maintenance updates, this build introduces mandatory FIPS 140-3 validated cryptography for government sector compliance. The “vpnapi” designation indicates specialized components for API-driven VPN session management without requiring full client GUI installation.

Key Features and Improvements

1. ​​Enhanced API Security​​

  • Implements TLS 1.3 with X25519 elliptic curve encryption for API communications
  • Enforces SHA-256 checksum validation on all API payloads
  • Resolves CVE-2023-20273 (API session hijacking vulnerability) through improved token rotation

2. ​​Developer-Centric Functionality​​

  • REST API endpoint for batch VPN connection management (50+ sessions)
  • WebSocket support for real-time VPN status monitoring
  • Python SDK integration for automated provisioning workflows

3. ​​Performance Optimization​​

  • 40% faster API response times compared to 5.1.2.42
  • 512MB minimum memory allocation for concurrent API operations
  • Native ARM64 optimizations for Apple Silicon M1/M2 processors

Compatibility and Requirements

Supported macOS Versions

OS Version Architecture Secure Firewall Compatibility
macOS 14 ARM64/x86_64 ASA 9.18(4)+ Required
macOS 13.5 x86_64 ASA 9.16(4)+ Supported

Hardware Requirements

Component Minimum Recommended
Processor Apple M1/Intel i5 (8th Gen) M2 Pro/Intel i7 (12th Gen+)
RAM 8GB 16GB
Storage 2GB NVMe SSD

Compatibility Notes

  • Requires OpenSSL 3.0.8+ for API cryptographic operations
  • Incompatible with ISE Posture Module 5.0.x
  • Network Visibility Module requires separate installation

Obtaining the Software Package

Enterprise developers can download ​​cisco-secure-client-macos-5.1.3.62-vpnapi.tar.gz​​ through authorized channels at https://www.ioshub.net. The platform provides MD5/SHA256 verification hashes matching Cisco’s official Software Center records for cryptographic integrity validation.

Note: Always verify API endpoint compatibility using Cisco’s Secure Client Integration Guide before implementation. For technical specifications, refer to Cisco’s Secure Client 5.1.3 Release Notes.

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