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Security audit

Altiria

Security checks for vulnerabilities and agentic risk

Overview

The Altiria actions have clear approval safeguards, but setup can execute unverified remote installers and introduce broader agent changes without separate user approval.

Review and approve CLI installation separately, verify the installer or release, and decide whether automatic installation of other agent skills is acceptable. This integration relies on OOMOL for connected-account access and processing requested data. Confirm SMS recipients, message content, and contact changes before execution. No malicious payload was established; external installers and hosted runtime behavior remain unverified.

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
98% confidence
Finding

The supplied code installs a third-party CLI through remote shell execution; it does not show any Altiria data operations or establish that the installer supports them. The downloaded script's contents and subsequent effects cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
99% confidence
Finding

Piping the HTTPS installer directly into bash executes remote content without a pinned version, integrity check, or opportunity to inspect the complete script first. HTTPS protects transport but does not protect against a compromised distribution endpoint; malicious installer content could execute with the user's permissions. This is the same underlying installation risk highlighted by SQP-2, not evidence of a separate malicious payload.

Content

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

The setup workflow executes remotely downloaded installation scripts without warning the user or requesting approval.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback setup instructs the agent to execute downloaded shell or PowerShell code without first obtaining approval for local software installation. Although triggered only when the CLI is missing, this expands an Altiria task into arbitrary code execution with the invoking user's permissions and could expose local files or credentials 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 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