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AdsAgent — agentic threat model

8.0AIVSS 8.0 · High

AdsAgent presents a high-risk profile due to its direct integration with Google Ads via OAuth, enabling it to modify bids and campaigns with immediate financial consequences. Its deployment as an MCP tool exposes it to multi-agent trust abuse and prompt injection vulnerabilities that could lead to unauthorized ad spend.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 8.5AARS uplift 0.88Factor sum 5.6/10Threat ×1.05Mitigation ×0.85
Autonomy of Action
0.80
Goal-Driven Planning
0.70
Self-Modification
0.10
Dynamic Tool Use
0.80
Persistent Memory
0.30
Contextual Awareness
0.70
Dynamic Identity
0.50
Multi-Agent Interactions
0.60
Non-Determinism
0.60
Opacity & Reflexivity
0.50

Scored with the canonical OWASP AIVSS formula (AIVSS calculator reference); agentic risk factors estimated from the agent’s described capabilities.

MAESTRO 7-layer threat model

Per-layer threats for this agent. Layers tagged “not certain from listing” are general, caveated commentary where the public description didn’t pin that layer.

L1 · Foundation Models⚠ not certain from listing

Not certain from the listing — The specific LLM is not defined as this is an MCP tool. However, the underlying model is highly vulnerable to indirect prompt injection via ad campaign data or keywords, which could hijack the agent's decision-making process.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — It reads Google Ads performance data, but the storage mechanism (RAG, vector databases, or local caching) is unspecified. If performance data is cached insecurely, it could lead to unauthorized data exposure.

L3 · Agent Frameworks✓ mapped

Built as an MCP (Model Context Protocol) tool. The primary risk is tool misuse where malicious prompts or compromised orchestrators abuse the keyword and bid management tools to drain ad budgets.

L4 · Deployment & Infrastructure✓ mapped

As an open-source MCP tool, deployment security depends on the host environment. The primary infrastructure threat is the insecure storage of Google Ads OAuth tokens, which, if compromised, grant direct API access to live accounts.

L5 · Evaluation & Observability✓ mapped

The listing highlights 'action confirmation and scope' as key controls. Without strict, out-of-band human-in-the-loop (HITL) confirmation and real-time anomaly detection on budget changes, malicious or erroneous optimizations will go unnoticed until financial damage occurs.

L6 · Security & Compliance (cross-cutting)✓ mapped

Uses OAuth for authentication to Google Ads. Compliance risks are high due to direct financial impact; strict scope limitation (least privilege) is critical to prevent the agent from accessing or modifying unauthorized campaigns.

L7 · Agent Ecosystem✓ mapped

Designed to operate within the MCP ecosystem, making it susceptible to agent-to-agent trust abuse. A compromised upstream orchestrator agent could command AdsAgent to perform unauthorized bid increases or campaign pauses.

MAESTRO — the 7-layer agentic threat-modeling framework (Cloud Security Alliance / Ken Huang).