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    Linux Audit

    by SkillBill

    Complete security audit for Linux servers and WSL2. Checks kernel CVEs, SSH, firewall, users, and hardening in one shot.

    Updated Jun 2026
    Security scanned
    24.04

    $9

    · or 45 credits

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Audit a new VPS for common security misconfigurations
    • Identify and patch specific kernel CVEs like Dirty Frag
    • terminal, file_read automation included
    • Ready for 24.04
    • Instant install

    Media gallery

    See it in action

    You say

    Run a full security audit on this server and check for the Fragnesia vulnerability.

    Your agent does

    LINUX SERVER AUDIT RAPPORT 🔴 CRITICAL — Kernel: esp4/esp6 modules loaded (Fragnesia vulnerable) CVE: CVE-2026-46300 Fix: sudo sh -c "printf 'install esp4 /bin/false\ninstall esp6 /bin/false\ninstall rxrpc /bin/false\n' > /etc/modprobe.d/dirtyfrag.conf" 🟢 OK — SSH: PasswordAuthentication disabled

    About This Skill

    Run a full Linux server security audit in seconds. This skill inspects your server across 12 security domains and delivers a severity-rated report with exact fix commands, no manual research needed. What gets checked: - Kernel CVEs — Copy Fail (CVE-2026-31431), Dirty Frag (CVE-2026-43284/43500), and Fragnesia (CVE-2026-46300), the three critical root escalation vulnerabilities from April–May 2026 - SSH hardening — PermitRootLogin, PasswordAuthentication, MaxAuthTries, port - Firewall — UFW status, default rules, open ports - Users & root — UID 0 accounts, empty passwords, sudoers wildcards - Fail2ban — installed and active? - DNS & hostname — reachable nameservers, correct hostname - NTP sync — clock synchronized? - Kernel parameters — rp_filter, tcp_syncookies, randomize_va_space - Unnecessary services — telnet, rsh, FTP, and other legacy daemons - File permissions — world-writable files, unexpected SUID binaries - System patches — pending security updates WSL2 support included. The skill automatically detects WSL and skips incompatible checks (UFW, auditd, NTP) with a clear explanation of what was skipped and why. Output is a structured report with 🔴 Critical / 🟠 High / 🟡 Medium / 🟢 OK ratings and copy-paste fix commands for every finding. Works with Claude Code, Codex CLI, Cursor, OpenClaw, and all SKILL.md-compatible agents.

    Use Cases

    • Audit a new VPS for common security misconfigurations
    • Identify and patch specific kernel CVEs like Dirty Frag
    • Generate a prioritized security report with one-line fixes
    • Verify SSH and firewall hardening status automatically

    Reviews

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    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell
    Read Files

    File Scopes

    linux-server-audit/**

    Tags

    linux-security
    devops
    server-hardening
    cve-scanner
    sysadmin
    linux
    security
    hardening
    audit
    kernel

    Requires sudo access for full audit. Tested on Ubuntu 22.04/24.04, Debian, AlmaLinux, and WSL2. Some checks require root for /etc/shadow and sysctl access.

    Creator

    SkillBill

    Frequently Asked Questions

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