Knowledge Base
Showing 24 of 362 guides. Use the numbered pages to browse the complete archive.
A firewall stores VPN keys, SSL-VPN logins, LDAP binds, and wireless secrets. After a compromise, treat all of them as burned and rotate on a plan.
A heap overflow in a network service is not just a crash. Here is how attackers turn corrupted memory into unauthenticated remote code execution, step by step.
Your firewall listens on more ports than you think. Learn how to inventory its control-plane services and shut off the ones that face the internet.
Two ordinary weaknesses, a predictable session identifier and a built-in password, combined into unauthenticated root on Cisco FMC. Here is how such chains form and how to break them.
When attackers run an appliance's own built-in tools, signatures miss them. Forward logs, baseline normal behavior, and hunt for trusted utilities doing untrusted things.
A firewall management console holds standing admin reach over every firewall it controls. Compromise one and the attacker inherits the perimeter. Rank it by blast radius, not exposure.
A link-following bug lets a low-privileged attacker redirect a trusted service's file operation to a target they choose. That is how CVE-2026-81963 reached SYSTEM on Windows.
When a release carries 970 CVEs, sorting by CVSS drowns you. Triage by exploitation status, network reach, user interaction and asset criticality to find the few that matter.
A wormable bug spreads with no user and no credentials. When one lands in DNS, DHCP or a domain service, the window between patch and mass compromise shrinks to hours.
Template engines are small programs, not passive strings. When user input reaches the template itself instead of a bound value, injection turns into code execution, as the StyleSmuggler flaw showed.
Patching an RCE does not undo the secrets the attacker already read. An ordered runbook: freeze the environment, rotate the root key, then work outward through tokens, gateway credentials and keys.
A storefront concentrates money, personal data and trusted infrastructure behind an always-on public app that is slow to patch. That makes recurring zero-days like StyleSmuggler a budgeted cost, not a surprise.
Patching an exploited RMM flaw does not tell you whether the window was used. A seven-step audit: exposure window, accounts, remote sessions, pushed scripts, endpoint persistence, rebuild, exposure.
Emergency fixes often block the reported exploit path rather than the root cause, and follow-up CVEs arrive within days. How to recognise a multi-round patch cycle and run operations to survive it.
An RMM console can run code on every managed endpoint by design. That fan-out, pre-established trust and legitimate tooling turn one server compromise into many breaches.
SSH authentication bypasses rarely break the cryptography. Three real failure modes: doing the protocol steps out of order, verifying a signature incompletely, and trusting the shape of a username.
A concrete RouterOS checklist: patch and check the flagged state, disable exposed services, filter the input chain, harden accounts and crypto, and make the configuration repeatable.
Routers are numerous, always on, reachable and unwatched, which is why the same hardware joins botnet after botnet. The structural reasons, and how to plan for the long tail of unpatched devices.
A downloaded browser update is not a running one. Six steps to define the patch floor, force relaunches with Chrome and Edge policy, stage an emergency tier, and verify from live inventory.
Why V8's optimizing compilers keep producing type confusion bugs, how one becomes addrof and fakeobj primitives, and where the renderer sandbox actually stops an attacker.
One Chromium CVE lands in Chrome, Edge, Brave, Opera, Electron apps and WebView2 on different days. How to inventory every embedded copy, set tiered SLAs, and negotiate with vendors.
An LLM gateway concentrates provider keys; an MCP gateway concentrates tool access. Put them in one process and a single fail-open auth path exposes everything behind it.
A nine-step hardening pass for LiteLLM and similar proxies: inventory, network placement, route pruning, key hygiene, scoped tool credentials, egress control, logging, and image verification.
LLM and MCP gateways hand attackers every provider key and tool at once. Why they belong in Tier 0, and how to set ownership, patch SLAs, blast-radius limits and monitoring without stalling teams.