Security audit

Cn Diff Checker

Security checks for vulnerabilities and agentic risk

Overview

This is a simple Chinese text/file diff utility with a narrow terminal-display risk but no evidence of hidden access, persistence, network use, or destructive behavior.

Install only if you are comfortable using a Chinese-language command-line diff helper. Avoid using it to inspect untrusted files in a sensitive terminal session unless control characters are sanitized or output is redirected to a safe viewer.

A.I.G

Vulnerability Patterns

Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally

Findings (1)

T09 · Insecure Skill Coding Practices

Warning

Location: scripts/cn_diff_checker.py:42
Finding: Terminal Escape-Sequence Injection Through Untrusted Diff Content
Content: View full analysis
Remediation: View remediation
= 0x20 else f'\\x{ord(char):02x}' for char in value ) def render(value, color=''): value = safe_terminal_text(value) if color and sys.stdout.isatty(): return f"{color}{value}{RESET}" return value ``` All vulnerable output paths should use `safe_terminal_text()` or `render()` rather than printing input-derived values directly. ]]>

SkillSpector

Vulnerability Patterns

Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (1)

Natural-Language Policy Violations

Low

Category: Not specified by scanner
Confidence: 90% confidence
Finding: The module docstring and user-facing descriptions specify the tool entirely in Chinese, which can impose a fixed language/locale on users without opt-in. The policy for this review flags language-forcing behavior unless the file offers a language choice or clearly justifies the locale restriction.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.