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Security audit

Iru (Kandji)

Security checks for vulnerabilities and agentic risk

Overview

The Iru lookups are appropriately scoped, but setup can run unreviewed installation scripts and introduce undisclosed changes to other agent skills.

Review setup before installing. Verify and install a chosen CLI release yourself, require approval for installation changes, and restrict the OOMOL connection to the data you need. To prevent cross-agent skill changes, upstream documents OO_SKILLS_SYNC_DISABLED=1. Remote installer contents and deployed connector behavior remain unverified. [CLI controls](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md)

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
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied command performs remote script execution, which is not represented by the declared Iru data-access purpose. No Iru access or necessary connection between this installer and Iru functionality is shown. The downloaded script's contents and resulting system changes cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a remotely retrieved installer directly into bash executes mutable external code with the agent process's local privileges, without integrity verification or an opportunity to review the downloaded artifact. Compromise of the installer distribution could expose local credentials or alter files; the analogous PowerShell command has the same risk, even though both appear only in conditional dependency setup.

Content

Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.

Fallback setup executes remote installation scripts without warning about local system changes.

Medium
Category
Output Handling
Confidence
93% confidence
Finding

The fallback instructs the agent to install software after a command-not-found error without first obtaining permission for local system changes. A request to read Kandji data does not inherently authorize executing an installer, although limiting setup to a genuine missing dependency reduces exposure.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 79)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources