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dotnet-expr-audit

.NET 表达式注入审计工具。识别 Roslyn Scripting、Dynamic LINQ、DataTable.Compute、自定义规则引擎中的表达式求值风险。

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 表达式注入审计工具。识别 Roslyn Scripting、Dynamic LINQ、DataTable.Compute、自定义规则引擎中的表达式求值风险。

Use cases: security

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Permissions

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

Tools
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Install scripts
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

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

What's inside

Skill name
dotnet-expr-audit
Description
.NET 表达式注入审计工具。识别 Roslyn Scripting、Dynamic LINQ、DataTable.Compute、自定义规则引擎中的表达式求值风险。
License
Apache-2.0
Instructions
45 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# .NET 表达式注入审计

## 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
- 枚举时至少覆盖与脚本引擎、表达式解释器、规则引擎、动态 LINQ 和计算表达式相关的共享抓手
- 若项目存在 RuleEngine、FormulaService、ScriptHost、QueryExpressionBuilder 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`(用于对齐表达式入口、参数绑定与 `route_id`)
- 可选:`framework_audit/*_{timestamp}.md`(用于补充宿主、规则引擎注册与运行时控制面)
- 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:

- Roslyn CSharpScript、ScriptOptions、自定义规则引擎、DataTable.Compute、Dynamic LINQ、NCalc 等表达式入口
- 表达式字符串、参数上下文、可访问类型、可访问程序集和 helper 函数的来源与约束
- compile/evaluate 前是否有白名单、沙箱、黑名单、长度限制、语法限制或类型限制
- 表达式求值结果是否进一步参与权限判断、数据库查询、文件路径、模板渲染、命令参数或业务状态机
- 管理后台规则、营销表达式、工作流条件、报表公式、搜索排序公式和低代码组件等业务场景
- 运行时编译缓存、异常回显、日志输出和脚本宿主权限是否扩大攻击面

## 枚举规则(强制细化)

- 枚举 Roslyn CSharpScript、DataTable.Compute、Dynamic LINQ、NCalc、自定义规则引擎、工作流表达式引擎
- 优先搜索 evaluate、compile、script、expression、formula、rule、condition、where、sort expression 等关键字段
- 枚举管理后台规则配置、报表公式、营销规则、流程引擎、搜索排序、自定义过滤器中的表达式入口
- 对每个表达式入口记录:表达式来源、允许访问的类型/函数、沙箱策略、求值结果流向的敏感语义

证据引用:

- EVID_EXPR_EVAL_ENTRY
- EVID_EXPR_EXPR_CONTROL
- EVID_EXPR_EXEC_CHAIN_ENTRY

## 输出

- vuln_audit/expr_{timestamp}.md
- 可选:vuln_poc/expr_{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-expr-audit skill. Agent Mart. https://agentmart.dev/skills/zmr0zhangmouren-dotnet-expr-audit (last updated 2026-10-24)