pentester: Skill for Claude Code

.agents/skills/third-party/redteam-cve-lookup/SKILL.md

redteam-cve-lookup is a skill for Claude Code, Codex from fb0sh/pentester. It costs 43 tokens per session (801 once invoked), scanned A, a copy of redteam-cve-lookup, MIT.

A guide for checking whether known software vulnerabilities, called CVEs, may apply to identified products and versions.

In plain words
What is it for?
It helps match reconnaissance results to CVE records, check version ranges and patches, track evidence and confidence, and produce a candidate list for later review.
Why use it?
It separates possible matches from confirmed findings and prevents unverified vulnerability claims or exploit attempts.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is fb0sh/pentester's own configuration. It tells Claude Code and Codex how to work on pentester itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything pentester configures →

Reuse

Borrowing it

Nothing to install: this file belongs to fb0sh/pentester. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/fb0sh/pentester/main/.agents/skills/third-party/redteam-cve-lookup/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/fb0sh/pentester

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for redteam-cve-lookup

README.md
[![agentmods](https://agentmods.dev/badge/skills/fb0sh/pentester/redteam-cve-lookup/github.svg)](https://agentmods.dev/skills/fb0sh/pentester/redteam-cve-lookup)
Your own site
<a href="https://agentmods.dev/skills/fb0sh/pentester/redteam-cve-lookup"><img src="https://agentmods.dev/badge/skills/fb0sh/pentester/redteam-cve-lookup/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for redteam-cve-lookup

Your own site · 80×15
<a href="https://agentmods.dev/skills/fb0sh/pentester/redteam-cve-lookup"><img src="https://agentmods.dev/badge/skills/fb0sh/pentester/redteam-cve-lookup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 801 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.00801
Opus 5 $0.00022 $0.00400
Sonnet 5 $0.00009 $0.00160
Haiku 4.5 $0.00004 $0.00080

Measured 9d ago against content hash d2779f8974ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

redteam-cve-lookup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to redteam-cve-lookup — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/third-party/redteam-cve-lookup/SKILL.md · 72 lines

What it actually says

CVE Lookup

Domain

Recon Profile 完成后的 CVE 匹配与适用性评估阶段。 根据已收集的产品名、版本号、服务指纹,查询已知 CVE,评估其对目标的适用性。

阶段顺序:

  1. 从 recon_profile 提取产品/版本/服务清单
  2. 按产品+版本查询 CVE 数据库(NVD/CVE MCP/本地库)
  3. 初筛:排除明确不匹配的 CVE(产品不符/版本范围外)
  4. 适用性评估:结合目标指纹判断 candidate/possibly_applicable/not_applicable/patched
  5. 补丁状态确认:检查已部署版本是否包含修复

Trigger

recon_profile_ready

Feedback Gates

  • Product Gate:recon_profile 中是否存在可识别的组件/产品名。无产品名则证据不足,回退 recon 补证。
  • Version Gate:是否有版本号或可比对的指纹信息。无版本信息降低 confidence 但不阻断。
  • Source Gate:CVE 来源是否可追溯(NVD/MITRE/厂商公告)。不可追溯标记 low confidence。
  • Applicability Gate:是否有证据证明目标适用该 CVE。无证据标记 candidate 待验证。
  • Patch Gate:是否有证据表明已修复(版本号高于修复版本/补丁已部署)。已修复标记 patched。

Boundaries

  • 不执行任何漏洞利用或 PoC
  • 不发送攻击性 payload 验证 CVE
  • 仅查询当前目标,不自动扩展到任务中未出现的关联目标
  • CVE 查询阶段只做信息匹配,不做主动验证
  • 对低置信度候选不做过度推断
  • 遵循最小请求原则,避免批量爬取 CVE 数据源

Pivot Hints

  • 产品名不明确 → 回退 recon,尝试更精确的指纹识别(Wappalyzer/httpx tech detect)
  • 版本号缺失 → 尝试从 HTTP header/error page/changelog 推断版本范围
  • CVE 数据源不可用 → 降级到离线 CVE 字典或已知漏洞列表
  • 候选过多(>20) → 按 CVSS 评分+影响范围排序,优先评估高危+RCE类
  • 全部标记 patched → 输出 cve_patch_status artifact,退出到 evidence-based router
  • 无任何候选 → 输出空 cve_candidate_list,退出到 evidence-based router

Exit Conditions

  • 存在 possibly_applicable 或 candidate CVE(confidence >= medium)→ 进入 cve-validation path
  • 全部 CVE 标记 not_applicable 或 patched → 退出到 evidence-based router
  • 产品/版本证据不足,无法生成有效候选 → 回退 recon-intake 补证
  • 无 CVE 候选(产品无已知漏洞)→ 退出到 evidence-based router

Exit Evidence

  • Required: cve_candidate_list
  • Optional: cve_applicability_matrix, cve_patch_status
  • min_attempts: 2

Capabilities

cve_lookup            -> cve_candidate_list
cve_applicability     -> cve_applicability_matrix
patch_status_check    -> cve_patch_status
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 72 lines · 43 tokens per session scan A d2779f8974ca

Subscribe to this mod's changes

redteam-cve-lookup is a skill published in the GitHub repository fb0sh/pentester (23 stars, last pushed 1mo ago), licensed MIT. It adds 43 tokens to every session and 801 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to redteam-cve-lookup, differing in 0 lines, and is treated as a copy.

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