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Security audit

Slack

Security checks for vulnerabilities and agentic risk

Overview

This Slack skill is mostly coherent, but its setup instructions include running a remotely downloaded installer directly in a shell without verification.

Review this before installing if you are not comfortable with OOMOL managing the Slack connection or with installing the oo CLI from a remote script. Prefer a verified package manager, signed release, or manually inspected installer before connecting a Slack workspace, and confirm every write or delete action carefully.

A.I.G

Vulnerability Patterns
  • 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
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

External Script Fetching

High
Category
Supply Chain
Confidence
97% 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: if the install endpoint, transport, DNS, or upstream distribution is compromised, arbitrary code would execute immediately on the host without verification.

Content

Scanner excerpt · SKILL.md (reported line 102)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description says to use this skill for "ANY Slack request" and "Whenever a task involves Slack," which is an extremely broad activation condition. It does not define boundaries, exclusions, or narrower trigger phrases, so ordinary references to Slack could activate the skill unintentionally.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.