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Security audit

Reducto

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a coherent Reducto connector, but its setup instructions tell users to execute remote installer scripts directly in shell/PowerShell without verification.

Review this skill before installing. The Reducto connector behavior is clear and limited, but avoid running the provided one-line remote installer commands as-is; prefer an official package manager or download, inspect, and verify the installer before execution, and avoid elevated/admin shells.

Vulnerability Patterns
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • 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
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Findings (2)

T03 · Remote Payload Retrieval and Execution

Error
Location
SKILL.md:57
Finding

Unverified Remote Installer Executed Directly by Bash

Content
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Remediation
View remediation

T03 · Remote Payload Retrieval and Execution

Error
Location
SKILL.md:61
Finding

Unverified Remote Installer Executed Directly by PowerShell

Content
View full analysis
Remediation
View remediation
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

External Script Fetching

High
Category
Supply Chain
Confidence
96% confidence
Finding

The skill instructs the agent to install software by piping a remotely fetched script directly into a shell (curl ... | bash). This creates a supply-chain and remote-code-execution risk because any compromise of the hosting site, network path, or installer content would result in arbitrary code execution on the user's machine without inspection or integrity verification.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

Static analysis

No suspicious patterns detected.