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Security audit

Push by Techulus

Security checks for vulnerabilities and agentic risk

Overview

The notification workflow requires confirmation, but setup can execute remote installers and introduce lasting agent changes without separate approval.

Review and approve CLI installation separately, verify the release, and decide whether OOMOL may install or refresh other agent skills. Disable startup skill synchronization if unwanted. Confirm notification recipients and content, and understand that OOMOL handles the provider connection. External installers and live connector implementation remain outside the inspected artifact.

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 (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied code performs an Oomol CLI installation rather than the declared Push by Techulus data operations. Nothing in the provided chunk establishes this installation as a supporting dependency of that integration. The installer contents are not supplied, so its further effects cannot be determined.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
82% confidence
Finding

The supplied chunk performs only an authentication command and shows no Push by Techulus integration or data operations. Authentication could be a supporting implementation detail, but nothing in this chunk establishes that oo auth login authenticates to the declared service.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a mutable HTTPS response directly into Bash executes remote code without a pinned version or independent integrity verification. A compromised distribution endpoint could execute commands with the invoking user's permissions; the legitimate dependency context and missing-CLI condition reduce exposure but do not eliminate this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.

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

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The fallback setup directs the agent to execute downloaded shell or PowerShell code without explaining the local changes or requiring installation approval. This is limited to a missing-CLI condition, but it can still turn an ordinary notification request into local software installation and arbitrary code execution if the installer is compromised.

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 77)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