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Security audit

Sorftime MCP

Security checks for vulnerabilities and agentic risk

Overview

The Sorftime workflow is coherent, but automatic execution of downloaded setup code and undisclosed changes to other agent skills warrant review.

Review and install a specific CLI release yourself before use. Check its automatic agent-skill synchronization and disable it if unwanted. OOMOL handles the connected service credentials, and operations may consume credits. Confirm exact deletion targets. The remote installer and CLI implementation were not audited, limiting confidence in their side effects.

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
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The supplied command performs remote installer execution, with no visible Sorftime MCP functionality or evidence that the installer supports it. This is materially different from the declared purpose. The downloaded script is not supplied, so its further actions cannot be determined.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
88% confidence
Finding

The supplied chunk performs only a CLI login and shows no Sorftime MCP operations or integration. Authentication could be a supporting implementation detail if oo were established as a Sorftime client, but the supplied content provides no such connection.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

The setup command downloads a mutable remote script and immediately executes it with the agent's local permissions, without integrity verification or review; the PowerShell alternative has the same issue. Compromise of the distribution endpoint could enable arbitrary code execution, credential theft, or local data modification, although the missing-CLI prerequisite limits when this path is reached.

Content

Scanner excerpt · SKILL.md (reported line 91)May include surrounding context.

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 112)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