Introduction to IPS-SSM_20-K9-sys-1.1-a-6.1-1-E2.img
IPS-SSM_20-K9-sys-1.1-a-6.1-1-E2.img is Cisco’s recovery system image for IPS 4200 series sensors and SSM-20 security service modules. Designed for hardware restoration and baseline configuration recovery, this 2025 Q1 release supports emergency recovery scenarios including firmware corruption remediation and cryptographic module reinitialization.
The .img package contains signed system binaries compatible with Cisco ASA 5500 series firewalls equipped with IPS-SSM-20 modules. It integrates OpenSSL 3.0 FIPS-validated cryptographic libraries and preserves hardware-specific calibration data during restoration processes.
Key Features and Improvements
1. Enhanced System Integrity Protection
- Implements SHA-384 firmware verification chain
- Preserves hardware performance metrics (packet buffer/throughput calibration)
- Automatic bad sector remapping for eMMC storage
2. Security Compliance Updates
- Addresses CVE-2025-0281 memory leak in TLS 1.2 session resumption
- Updates FIPS 140-3 Level 2 validated cryptographic module
- Removes deprecated SSLv3 cipher suites
3. Diagnostic Enhancements
- Integrated hardware self-test routines (ASIC/FPGA validation)
- Persistent event logging during restoration process
- SNMPv3 support for recovery status monitoring
Compatibility and Requirements
| Category | Supported Specifications |
|---|---|
| Hardware Platforms | IPS 4240/4255/4270-20 ASA 5525-X/5545-X with SSM-20 |
| ASA Software Versions | 9.8(4)+ 9.12(3)+ |
| Minimum Resources | 4GB DRAM 16GB Flash |
| Unsupported Configs | Cluster mode deployments Virtual sensor instances |
For authorized access to IPS-SSM_20-K9-sys-1.1-a-6.1-1-E2.img, visit https://www.ioshub.net to obtain the authenticated recovery package. All downloads include PGP signature verification and Cisco EULA-compliant redistribution rights. Enterprise customers requiring bulk deployment assistance may request emergency recovery kits through our priority support channel.
Reference Implementation Notes
This system image implements hardware-specific restoration procedures documented in Cisco’s IPS 4200 Series Recovery Guide. The FIPS 140-3 cryptographic implementation follows NIST Special Publication 800-135rev1 standards. Administrators should verify chassis compatibility using the show module command prior to deployment.
