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Security audit

Pushsafer

Security checks for vulnerabilities and agentic risk

Overview

Pushsafer actions require approval, but setup can execute unverified downloads and introduce persistent agent skills beyond the disclosed task.

Review CLI setup separately before allowing automatic installation. Prefer a verified release and disable startup skill synchronization if you only want Pushsafer functionality. OOMOL mediates the connected account and requests. The remote installers were unavailable for inspection, so their exact local effects remain uncertain.

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
98% confidence
Finding

The supplied chunk executes an Oomol installer rather than interacting with Pushsafer. Dependency installation can be a supporting implementation detail, but nothing supplied establishes this installer's role in providing the declared Pushsafer functionality. The remote script's contents and any further effects cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
86% confidence
Finding

Authentication could support the declared functionality, but the supplied chunk contains only a generic login command and establishes no connection to Pushsafer. Its demonstrated purpose therefore differs from the declared Pushsafer data-management purpose.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The setup procedure pipes a mutable remote script directly into Bash without pinning or verifying its contents; the PowerShell alternative uses the same download-and-execute pattern. If the distribution endpoint or delivery pipeline is compromised, installer code can execute with the agent's local permissions and access local data or credentials. Restricting installation to a missing-CLI error reduces exposure but does not remove this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 57)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 78)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