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dotnet-crlf-audit

.NET CRLF 与响应分割审计工具。识别 Response.Headers、Set-Cookie、Location 等输出点中的控制字符注入风险。

Skill by ZMR0zhangmouren

IndexedApache-2.0★ 11
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

.NET CRLF 与响应分割审计工具。识别 Response.Headers、Set-Cookie、Location 等输出点中的控制字符注入风险。

Use cases: security

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/dotnet-crlf-audit

What's inside

Skill name
dotnet-crlf-audit
Description
.NET CRLF 与响应分割审计工具。识别 Response.Headers、Set-Cookie、Location 等输出点中的控制字符注入风险。
License
Apache-2.0
Instructions
41 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# .NET CRLF 审计

## 共享抓手索引引用

- 默认以 shared/DOTNET_AUDIT_GRABBER_INDEX.md 作为本 Skill 的基础检索索引
- 枚举时至少覆盖与 Header、Cookie、日志换行、响应分割和代理透传相关的共享抓手
- 若项目存在 ResponseHelper、HeaderBuilder、CookieManager、LogFormatter 等二次封装,必须补充到输出中的项目内抓手章节
- 当本 Skill 的专项枚举规则比共享索引更细时,以本 Skill 为准,但不得缩减共享索引的基础覆盖范围

## 输入依赖

- 必需:`source_path`
- 可选:`route_mapping/routes_{timestamp}.md` 与 `route_mapping/params_{timestamp}.md`(用于对齐输出入口、参数来源与 `route_id`)
- 可选:`framework_audit/*_{timestamp}.md`(用于补充宿主服务器、代理边界与响应处理控制面)
- trace-gate 场景下优先消费:`route_tracer/{route_id}/trace_{timestamp}.md`;如存在 `route_tracer/{route_id}/trace_summary_{timestamp}.md`,可作为摘要索引
- 如通过 `dotnet-audit-pipeline` 执行,当前专项引用的 `route_id` 应与 `cross_analysis/high_risk_routes_{timestamp}.md` 保持一致

重点检查:

- Response.Headers.Append/Add、AppendCommaSeparatedValues、WriteAsync 前设置 header、异常处理中写 header 的调用点
- Set-Cookie、Location、Content-Disposition、X-Accel-Redirect、X-Sendfile、自定义审计 header 等高风险响应头构造
- 用户输入进入 header 名、header 值、文件名、下载名、重定向地址、cookie 值或日志关联 ID 的映射
- \r、\n、%0d%0a、Unicode 分隔符、折行、双重解码和代理层标准化对过滤逻辑的影响
- 框架是否在 Kestrel、IIS、反向代理或第三方库层面对非法 header 做了硬拦截,以及是否可被绕过
- CRLF 注入后是否可造成响应分割、缓存污染、下载名欺骗、日志伪造或安全策略头覆盖

## 枚举规则(强制细化)

- 枚举所有 Response.Headers 写入、Set-Cookie、Location、Content-Disposition、自定义下载和反向代理透传 header 逻辑
- 优先搜索 HeaderDictionary、Append、Add、SetCookieHeaderValue、FileDownloadName、redirect location 等关键调用
- 枚举来自用户输入、文件名、日志 ID、代理头、数据库字段进入 header 的位置
- 对每个 header 输出点记录:字段名、值来源、过滤逻辑、宿主服务器拦截行为、可能造成的响应污染类型

证据建议:重点记录输出点、用户输入映射和控制字符过滤行为。

## 输出

- vuln_audit/crlf_{timestamp}.md
- 可选:vuln_poc/crlf_{timestamp}.md(已确认 / 待验证 / 环境依赖 PoC;如不适合直接构造请求,至少给出验证步骤)

From ZMR0zhangmouren/dotnet-security-audit-skill, Apache-2.0.

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Last commit (this folder)
May 21, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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dotnet-crlf-audit skill. Agent Mart. https://agentmart.dev/skills/zmr0zhangmouren-dotnet-crlf-audit (last updated 2026-10-24)