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Security audit

Tongdaxin

Security checks for vulnerabilities and agentic risk

Overview

The Tongdaxin workflow is coherent, but setup runs an unverified remote installer and omits potentially broad changes to agent skills.

Review setup before installing. Prefer a verified CLI release installed under your control, and disable managed-skill synchronization with OO_SKILLS_SYNC_DISABLED=1 if unwanted. Connect only the intended account and retain destructive-action approvals. The remote installers and live connector implementation were not verified; no artifact-backed malicious intent was found.

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
98% confidence
Finding

The supplied code installs software from an external domain rather than performing Tongdaxin data operations. Nothing in the chunk establishes that this installation supports the declared purpose. The remote script's contents are not supplied, so its further behavior cannot be assessed.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
90% confidence
Finding

Authentication could support a Tongdaxin integration, but the supplied chunk contains only a login command and establishes no connection to Tongdaxin or its declared data-management capabilities. As supplied, its sole behavior materially differs from the advertised purpose.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The curl-to-bash command immediately executes the current contents of a remote installer without pinning or integrity verification. Compromise of the installer host or delivery pipeline could therefore execute arbitrary code with the invoking user's privileges, potentially exposing local files and credentials; HTTPS alone does not protect against a compromised source.

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

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

Medium
Category
Output Handling
Confidence
93% confidence
Finding

The setup directs the agent to execute downloaded shell or PowerShell code when the CLI is missing, without explicit user approval for running remote code or making local installation changes. This expands a financial-data task into local code execution; the conditional setup limits exposure but does not establish informed consent or installer integrity.

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 101)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