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Security audit

Clockify

Security checks for vulnerabilities and agentic risk

Overview

The Clockify integration is coherent, but its setup can execute changing remote code without clearly requiring your approval.

Review and approve CLI installation separately, preferably using a pinned, verified release. Check its effects on other installed agent skills before first use. OOMOL will mediate access to your connected Clockify account; retain the skill's explicit confirmations for changes and deletions. The installer and hosted connector implementations were not available in this artifact, so their full behavior remains unverified.

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
97% confidence
Finding

The supplied chunk runs a third-party installer rather than performing any demonstrated Clockify operation. Nothing provided establishes that this installer is a supporting dependency for Clockify functionality. The downloaded script's contents are unavailable, so its further effects cannot be determined.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes a mutable remote script directly into Bash without version pinning or integrity verification; the PowerShell alternative uses the same download-and-execute pattern. Compromise of the installer distribution infrastructure could therefore lead to arbitrary code execution with the invoking user's privileges, although the file provides no evidence that the installer is currently malicious.

Content

Scanner excerpt · SKILL.md (reported line 66)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning about remote code execution or local system changes.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The fallback instructs the agent to execute a remote installer without explaining local system changes or requiring explicit installation approval. Although conditional setup reduces exposure, installing software crosses a different trust boundary from operating Clockify and can execute code with the invoking user's privileges.

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 87)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