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Security audit

BugBug

Security checks for vulnerabilities and agentic risk

Overview

This BugBug integration needs review because its fallback setup executes downloaded code without verification or explicit installation approval.

Install a reviewed, pinned CLI yourself before use and require approval for host changes. Review its automatic skill synchronization; the documented OO_SKILLS_SYNC_DISABLED=1 setting disables startup sync. Confirm that you trust OOMOL with the connected BugBug account and retain confirmation for test runs. Remote installer contents and server-side connector behavior were not verified.

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 command executes an Oomol-hosted installation script, with no demonstrated connection to BugBug. Although dependency installation can be a supporting implementation detail, the provided chunk establishes no such relationship. The remote script's contents and any further effects are not visible.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a mutable remote script directly into bash executes its contents with the agent process's privileges without an independent integrity check or review. A compromised distribution endpoint could therefore enable credential theft or host modification; the OOMOL domain is relevant to this dependency, but HTTPS alone does not protect against compromised publisher infrastructure. The PowerShell example has the same risk, although actual execution depends on tool permissions.

Content

Scanner excerpt · SKILL.md (reported line 62)May include surrounding context.

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

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The fallback directs the agent to execute downloaded installer code without explicitly obtaining approval for software installation or explaining the resulting system changes. The missing-command prerequisite reduces exposure, but a request to operate BugBug does not necessarily authorize executing an installer on the host.

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 83)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