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Security audit

Gift Up

Security checks for vulnerabilities and agentic risk

Overview

Gift-card changes require approval, but the CLI dependency can make broader, persistent changes to installed agent skills that this skill does not explain.

Review the CLI installation separately and understand that Gift Up requests pass through OOMOL. Before first use, consider setting OO_SKILLS_SYNC_DISABLED=1 to prevent automatic changes to other agents' skills, as documented in the publisher's command reference. Keep the required approvals for balance changes and voids. The remote installers and hosted connector implementation were not verified. [Command reference](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
  • 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 (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

The supplied chunk performs remote software installation rather than any visible Gift Up operation. Although dependency installation can be a supporting implementation detail, nothing supplied establishes this installer's role in implementing the declared functionality. The downloaded script's contents and subsequent effects are not available for assessment.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The installation command streams a mutable remote script directly into Bash without integrity verification or review; the PowerShell alternative uses the same fetch-and-execute pattern. If the distribution endpoint or its publishing infrastructure is compromised, installation can execute attacker-controlled code with the current user's privileges, potentially exposing local credentials and files. Conditional execution only when the CLI is missing reduces exposure, but does not protect that installation path.

Content

Scanner excerpt · SKILL.md (reported line 71)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 92)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