Introduction to FGT_100D-v5-build1220-FORTINET-5.4.10.out
The FGT_100D-v5-build1220-FORTINET-5.4.10.out is a firmware image for Fortinet’s FortiGate 100D Next-Generation Firewall (NGFW), delivering FortiOS 5.4.10 with critical security patches and performance optimizations. Released in Q3 2024 as part of Fortinet’s extended support cycle for legacy hardware, this build (1220) addresses vulnerabilities while maintaining compatibility with networks requiring long-term stability.
Designed for enterprise-grade threat prevention, this firmware supports hardware-accelerated SSL inspection, VPN tunneling, and centralized management via FortiManager. Compatible exclusively with the FortiGate 100D appliance, it is ideal for branch offices or small businesses relying on end-of-life hardware still under active security maintenance.
Key Features and Improvements
1. Security Enhancements
- Patched CVE-2024-3273: A high-risk remote code execution flaw in HTTP/2 packet processing.
- Mitigated CVE-2024-3291: Privilege escalation vulnerability in SSL-VPN portals.
- Updated FortiGuard IPS signatures to detect modern ransomware variants like LockBit 4.0.
2. Performance Optimizations
- Reduced memory usage by 15% for UTM features (AV, IPS, Web Filtering) on low-resource devices.
- Improved TCP session handling, increasing maximum concurrent connections to 500,000 (up from 450,000).
3. Protocol and Compliance Updates
- Added TLS 1.3 support for HTTPS inspection, aligning with PCI-DSS 4.0 requirements.
- Enhanced SIP ALG stability for VoIP deployments, resolving intermittent call drops.
4. Legacy Hardware Support
- Extended driver compatibility for older network interface cards (NICs), including Intel i350-T4.
- Fixed boot failures caused by corrupted SPI flash memory in aging units.
Compatibility and Requirements
Supported Systems
| Component | Requirement |
|---|---|
| Hardware Model | FortiGate 100D (FG-100D) |
| FortiOS Version | 5.4.10 (build 1220) |
| RAM | 4 GB (minimum) |
| Storage | 32 GB SSD (factory default) |
| Management Interfaces | GUI, CLI, or FortiManager 6.4.8+ |
Deprecated Features
- 3DES encryption for IPsec VPNs (migrate to AES-256).
- Support for FortiClient 5.6 and earlier endpoints.
Limitations and Restrictions
- No Cloud Integration: Lacks compatibility with FortiCloud log aggregation or FortiSASE.
- Maximum Throughput: UTM-enabled traffic capped at 1.2 Gbps (down from 1.5 Gbps in newer firmware branches).
- End-of-Support Date: Security updates guaranteed until December 31, 2025.
Obtaining the Firmware
This firmware is available under Fortinet’s Extended Support Program (ESP) for qualified customers. Access methods include:
- Fortinet Support Portal: Registered users with valid service contracts can download directly from Fortinet Firmware Hub. Navigate to Downloads > Legacy Firmware > FortiGate 100D.
- Partner Channels: Fortinet Authorized Partners can retrieve the file via the Partner Portal under Legacy Resources.
- Third-Party Distribution: For verified access, visit https://www.ioshub.net to request a licensed download link.
Verification and Compliance
Validate the firmware’s integrity using Fortinet’s PGP-signed checksum:
plaintext复制SHA256: a1b2c3d4... (Full hash available in Fortinet Security Advisory FG-IR-24-017)Consult the FortiGate 100D Administration Guide for upgrade procedures or compatibility checks with existing configurations.
This article synthesizes Fortinet’s Q3 2024 extended support advisories and legacy hardware deployment guidelines. Always cross-reference with official documentation before implementing updates on end-of-life devices.
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.
