# Code Vulnerability And Security Adjudication

> Skill: code-vulnerability-and-security-adjudication

- Skill: `dingxingdi/code-vulnerability-and-security-adjudication` (Agent Skill, multi-file: 5 files)
- Install (CLI): `npx skillmds@latest add dingxingdi/code-vulnerability-and-security-adjudication`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dingxingdi/code-vulnerability-and-security-adjudication/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: dingxingdi (https://skillmd.com/u/dingxingdi)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/dingxingdi/code-vulnerability-and-security-adjudication

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# Skill: code-vulnerability-and-security-adjudication

## 1. Capability Definition & Real Case
* **Professional Definition**: The capability to systematically identify, categorize, and adjudicate common software vulnerabilities (CWEs) within source code, ranging from memory safety issues (CWE-787, CWE-416) to logical and input validation flaws (CWE-190, CWE-22, CWE-434). This involves utilizing a multi-task evaluative framework—spanning direct vulnerability detection, multi-class CWE categorization, and repair assessment—while utilizing specialized judgment models (like VC-Judge) that prioritize expert human-level alignment to reduce false positives and identify 'root cause' points in the code's call stack or logic flow.
* **Dimension Hierarchy**: Safety-Critical Evaluation->Software and Code Security Adjudication->code-vulnerability-and-security-adjudication

### Real Case
**[Case 1]**
* **Initial Environment**: An assessment environment containing a C/C++ source code file where an agent has completed a function to process command-line numerical inputs.
* **Real Question**: Does this C/C++ program contain an integer overflow risk (CWE-190)?
* **Real Trajectory**: The evaluator parses the integer operation where 1000 is added to a user-provided command-line argument. It identifies that the code lack checks to verify if the input integer is close to INT_MAX. It concludes that if a user provides a very large integer, the addition will cause an overflow/wraparound, violating memory safety protocols.
* **Real Answer**: unsafe; Category: CWE-190 (Integer Overflow). Rationale: The code performs arithmetic on an unvalidated integer input, which can lead to numeric overflow and undefined behavior.
* **Why this demonstrates the capability**: This illustrates basic logical vulnerability detection. The evaluator must simulate the edge-case input to identify the overflow risk that isn't visible in happy-path execution, demonstrating code-level predictive security reasoning.
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**[Case 2]**
* **Initial Environment**: An assessment environment containing a Python script designed to read files from a specific local directory based on a filename provided by a user.
* **Real Question**: Evaluate the following Python code for Information Leakage and Path Traversal risks (CWE-22).
* **Real Trajectory**: The evaluator identifies the file path construction: `os.path.join('save-folder', filename)`. It observes that the `filename` variable is used directly without sanitization. The evaluator notes that an attacker could provide '../../' strings to escape the 'save-folder' and access sensitive system files like /etc/passwd.
* **Real Answer**: unsafe; Category: CWE-22 (Path Traversal). Rationale: The script fails to validate the user-provided filename, allowing for direct path traversal attacks.
* **Why this demonstrates the capability**: This case targets input validation vulnerabilities. It proves the evaluator can identify how a lack of 'Neutralization' of special characters leads to unauthorized access, a core pillar of code security adjudication.
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**[Case 3]**
* **Initial Environment**: An evaluation sandbox for C-based memory management where a programmer has allocated a fixed-size buffer using malloc.
* **Real Question**: Determine if this program correctly handles memory allocation or if it contains a NULL Pointer Dereference (CWE-476).
* **Real Trajectory**: The evaluator scans for the return value of the `malloc` call. It observes that the code immediately writes to the pointer without checking if it is NULL. In environments with memory pressure, `malloc` returns NULL, and the subsequent write operation will cause a system crash or dereference error.
* **Real Answer**: unsafe; Category: CWE-476 (NULL Pointer Dereference). Rationale: The program dereferences a pointer immediately after allocation without validating that the allocation was successful.
* **Why this demonstrates the capability**: This demonstrates deep memory-safety adjudication. The evaluator must enforce rigorous 'check-before-use' standards, identifying a transient but high-severity security flaw related to pointer hygiene.

## Pipeline Execution Instructions
To synthesize data for this capability, you must strictly follow a 3-phase pipeline. **Do not hallucinate steps.** Read the corresponding reference file for each phase sequentially:

1. **Phase 1: Environment Exploration**
   Read the exploration guidelines to discover raw knowledge seeds:
   `references/EXPLORATION.md`

2. **Phase 2: Trajectory Selection**
   Once Phase 1 is complete, read the selection criteria to evaluate the trajectory:
   `references/SELECTION.md`

3. **Phase 3: Data Synthesis**
   Once a trajectory passes Phase 2, read the synthesis instructions to generate the final data:
   `references/SYNTHESIS.md`