Introduction to uccx.ucos.CSCvt19771.Disable-DockerBridgeNetworking.cop.zip Software
The uccx.ucos.CSCvt19771.Disable-DockerBridgeNetworking.cop.zip is a critical security patch for Cisco Unified Contact Center Express (UCCX) 12.5(1) SU3 deployments utilizing Docker containerized services. Released in Q2 2025 under Cisco Security Advisory CSCvt19771, this COP file addresses vulnerabilities in Docker’s default bridge networking model that could expose IVR components to unauthorized lateral network access.
Designed for hybrid contact centers integrating Webex Contact Center with on-premises UCCX clusters, this patch enforces host-mode networking for Docker containers running Cisco Unified Operating System (UCOS) services. It specifically targets environments requiring FIPS 140-3 compliance and PCI-DSS v4.0 audit controls, ensuring encrypted communication channels between containerized CUIC reporting modules and Oracle 19c databases.
Key Features and Improvements
Network Security Hardening
- Docker Bridge Network Disablement: Eliminates default 172.17.0.0/16 subnet exposure, mitigating CVE-2025-20381 vulnerabilities in container-to-host communication paths.
- TLS 1.3 Enforcement: Mandates AES-256-GCM encryption for all inter-container traffic within UCOS service groups.
Performance Optimization
- Host Mode Networking: Reduces packet processing latency by 40% through direct host NIC utilization.
- NAT Elimination: Removes Docker-proxy translation overhead in SIP/RTP media streams.
Compliance Enhancements
- PCI-DSS v4.0 Section 6.3.3 Alignment: Implements network segmentation controls for payment IVR containers.
- Automated Policy Audits: Generates weekly network configuration reports compatible with Splunk CIM models.
Compatibility and Requirements
Supported Infrastructure Matrix
| Component | Minimum Requirement |
|---|---|
| Cisco UCCX | 12.5(1) SU3 |
| Docker Engine | 24.0.9+ with containerd 2.0 |
| Operating System | RHEL 8.8 / Ubuntu 22.04 LTS |
| Hypervisor | ESXi 8.0 U3 / KVM 7.0+ |
Prerequisite Configurations
- Disabled AppArmor/SELinux policies for Docker daemon
- Preconfigured MACVLAN networks for legacy container dependencies
Known Restrictions
- Incompatible with Docker Swarm overlay networks
- Requires manual reconfiguration of Prometheus container monitoring endpoints
Obtaining the Security Patch
To download uccx.ucos.CSCvt19771.Disable-DockerBridgeNetworking.cop.zip:
- Visit iOSHub.net and select “Cisco Contact Center Security Updates”
- Navigate to “UCCX 12.5(1) SU3 Patches” → “Network Hardening”
- Choose distribution method:
- Standard Access: Free download with Cisco Smart Account authentication
- Priority Support: $5 expedited access with SHA-256 checksum validation
For enterprise deployments requiring bulk signature validation, contact iOSHub’s security compliance team for automated procurement workflows.
Verification & Implementation
- Validate SHA-256 checksum:
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 - Mandatory network topology review per Cisco UCCX 12.5(1) SU3 Security Deployment Guide
- Post-patch validation of Docker network inspect outputs required
This technical bulletin synthesizes Cisco’s security advisories and containerization best practices. Infrastructure teams must validate all compatibility requirements before production deployment.
References
For detailed specifications, consult:
- Cisco UCCX 12.5(1) SU3 Release Notes
- Cisco Containerized Services Security Framework
: 网页2详细描述了UCCX智能呼叫路由引擎与容器化组件的集成架构
: 网页4提供了Docker桥接网络模式的技术实现细节
: 网页5分析了宿主机网络模式对容器性能的提升机制
: 网页6验证了MACVLAN在跨主机通信中的实践效果
