Interactive SME Network Security Architecture

Interactive SME Network Security Architecture

Cloud Services Web Server Database Server Firewall Router Wi-Fi Switch Wi-Fi Coverage Laptop Mobile Physical & Hardware • Malicious peripherals (keyloggers), Side channel attacks (Microarchitecture) Firmware & Boot • UEFI/BIOS tampering, bootkits OS & Kernel • Privilege escalation, driver exploits, rootkits Memory & Software • Buffer overflows, use-after-free, JIT exploits Network & Wireless • Wi-Fi exploits, MITM, Bluetooth vulnerabilities Applications • Unpatched software, RCE, plugin exploits User & Credential • Keylogging, weak passwords, no MFA Supply Chain • Compromised OEM components, backdoor updates USB & Physical • Malicious USB devices (Rubber Ducky), Evil Maid Social Engineering • Phishing emails, malicious links, tailgating Server & OS-Level • Unpatched OS, weak system services Web Server Software • Vulnerable modules, misconfigurations Application & Framework • SQLi, XSS, CSRF, SSRF, insecure deserialization Auth & Sessions • Weak session tokens, brute force, missing MFA API & Microservices • Unvalidated endpoints, leaked keys Denial of Service • DDoS, resource exhaustion Supply Chain • Vulnerable libraries, malicious plugins OS & Host-Level • Unpatched OS, weak system services Database Software • Outdated engine, vulnerable extensions Misconfiguration • Default credentials, exposed interfaces Access Control • Weak passwords, excessive privileges Injection Attacks • SQLi, NoSQLi, error-based injection Data Exfiltration • Insecure backups, unencrypted exports Denial of Service • Resource exhaustion via large queries Supply Chain • Vulnerable libraries, malicious updates Firmware & OS • Outdated firmware, backdoors, supply-chain risks Admin Interface • Default credentials, insecure remote login Routing Protocols • BGP/OSPF exploits, ARP/DNS spoofing Configuration & ACL • Misconfigured ports, weak encryption, no VLANs Denial of Service • Packet floods, resource exhaustion Physical & Supply Chain • Unauthorized access, malicious hardware Logging & Monitoring • Insufficient logs, no intrusion alerts Firmware & OS • Outdated firmware, supply-chain backdoors Wireless Encryption • WEP/WPA2/WPA3 flaws, KRACK-like attacks Misconfig & ACL • Default creds, VLAN misconfig, plaintext admin pages Rogue Clients • Unauthorized access, MAC spoofing, no client isolation Denial of Service • Deauth flooding, resource exhaustion Physical & Supply Chain • Tampering, malicious firmware updates Logging & Monitoring • Limited logs, no WIPS or intrusion detection Firmware & Bootloader • Unlocked bootloaders, custom ROM vulnerabilities OS & Kernel • Privilege escalation, SELinux misconfigs Baseband & Radio • Cellular protocol exploits (SIM toolkit, LTE flaws) Apps & Play Store • Malicious apps, unvetted third-party sources Browser & WebView • XSS, malicious JavaScript, drive-by downloads User Data & Crypto • Weak/no encryption, insecure data storage Network & Wi-Fi • MITM, rogue AP, insecure Wi-Fi protocols Social Engineering • Smishing, malicious links, credential theft Physical & Supply Chain • Lost/stolen device, malicious firmware Firmware & OS • Outdated firmware, unpatched kernel, supply-chain risks Admin & Remote Mgmt • Default credentials, exposed management ports Rule Config & Policy • Overly permissive rules, misconfigured NAT/port forwarding Bypass & Evasion • Fragmented packet attacks, protocol tunneling Logging & Monitoring • Insufficient logs, no SIEM integration Denial of Service • Flooding, protocol exploits, resource exhaustion Physical & Supply Chain • Unauthorized console access, malicious updates
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