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Offensive Krack Fragattacks

Category: Security  ·  Sub-category: appsec-tools  ·  Last updated:
KRACK (CVE-2017-13077..082) and FragAttacks (CVE-2020-24586..588 + 26139-26147) — key reinstallation, fragmentation, and aggregation attacks against WPA2 supplicants. Covers Vanhoef's test scripts, viability against modern patched stacks (mostly mitigated post-2021), residual unpatched embedded devices and IoT vendors, and the practical limitations of these attacks in modern engagements. Use when assessing legacy supplicants, embedded clients, or vendors with poor patch cadence.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Two attack families against WPA2 client implementations. Both well-disclosed (KRACK 2017, FragAttacks 2021) and largely patched on modern OSes — but the embedded/IoT long tail keeps them in scope for many engagements.

What this skill does

Offensive Krack Fragattacks is a community-contributed Claude Code skill in the appsec-tools sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/offensive-krack-fragattacks/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when assessing legacy supplicants, embedded clients, or vendors with poor patch cadence.

Who uses this skill

The Offensive Krack Fragattacks Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 153,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/offensive-krack-fragattacks
curl -L https://claudskills.com/skills/offensive-krack-fragattacks/SKILL.md \
  -o ~/.claude/skills/offensive-krack-fragattacks/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/offensive-krack-fragattacks/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/offensive-krack-fragattacks/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\offensive-krack-fragattacks\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Offensive Krack Fragattacks Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/offensive-krack-fragattacks/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Offensive Krack Fragattacks skill do?
KRACK (CVE-2017-13077..082) and FragAttacks (CVE-2020-24586..588 + 26139-26147) — key reinstallation, fragmentation, and aggregation attacks against WPA2 supplicants. Covers Vanhoef's test scripts, viability against modern patched stacks (mostly mitigated post-2021), residual unpatched embedded devices and IoT vendors, and the practical limitations of these attacks in modern engagements. Use when assessing legacy supplicants, embedded clients, or vendors with poor patch cadence.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Offensive Krack Fragattacks skill?
Use Offensive Krack Fragattacks when your Claude Code task falls under the Security category — specifically in the appsec tools area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Offensive Krack Fragattacks" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Offensive Krack Fragattacks skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Offensive Krack Fragattacks is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
SnailSploit. (2026). Offensive Krack Fragattacks [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/offensive-krack-fragattacks/
BibTeX
@misc{offensive-krack-fragattacks-2026,
  author    = {SnailSploit},
  title     = {Offensive Krack Fragattacks [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/offensive-krack-fragattacks/}
}

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Security scan

Grade A · scanned 2026-07-18 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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