Cisco Config Hardening Checker

MAG212 CYBER · Tools

Cisco config hardening checker.

Paste a Cisco IOS or IOS XE running-config from a router or switch. Get a security score, every weakness ranked by severity, and the exact commands to fix it — without the config ever leaving your browser.

Check a config What it checks

Check a config

Run show running-config and paste the output. Remove real passwords, keys and public IP addresses first if you’re unsure — the checker only needs the structure.

🔒 Your config is analysed only in your browser. It is never uploaded, sent or stored.

Checks passed

Automated checks are a starting point. They read the configuration text only. They can’t see your software version, known CVEs, physical security or how the device is reached. Test every change in a maintenance window, and keep a console or out-of-band path open before changing VTY or AAA settings.

What it checks

🔑 Passwords & accounts

enable password vs secret, weak type 5/7 hashes, plain-text usernames, AAA, login brute-force protection.

🖥️ Management access

Telnet vs SSH, SSH v2, VTY access-class, exec timeouts, HTTP/HTTPS servers (CVE-2023-20198), banners.

📡 Services & SNMP

Default SNMP communities, SNMPv3, small servers, finger, PAD, source routing, CDP.

📜 Logging & time

Remote syslog, timestamps, NTP — the evidence you need during an incident.

🔌 Switch ports

BPDU Guard, trunk native VLAN, DTP negotiation, allowed VLANs, unused ports left enabled, DHCP snooping and DAI.

🔁 Control plane

OSPF, EIGRP and HSRP authentication — tie-ins to our OSPF, EIGRP and FHRP guides.

Based on Cisco’s IOS XE hardening guidance and common audit baselines such as the CIS Cisco IOS benchmark. Need a full audit of your network? Talk to MAG212 CYBER.

⚖️ For education and use on systems you own or are authorised to test. Results are automated guidance, not a professional audit. See our terms of use and privacy policy.

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