📄 论文总结
多面攻击:揭示配备防御机制的视觉语言模型中的跨模型漏洞 / Multi-Faceted Attack: Exposing Cross-Model Vulnerabilities in Defense-Equipped Vision-Language Models
1️⃣ 一句话总结
这篇论文提出了一种名为多面攻击的新方法,能够有效绕过当前主流视觉语言模型的多重安全防护,揭示了这些模型因共享视觉表示而存在的普遍安全漏洞,攻击成功率远超现有方法。
The growing misuse of Vision-Language Models (VLMs) has led providers to deploy multiple safeguards, including alignment tuning, system prompts, and content moderation. However, the real-world robustness of these defenses against adversarial attacks remains underexplored. We introduce Multi-Faceted Attack (MFA), a framework that systematically exposes general safety vulnerabilities in leading defense-equipped VLMs such as GPT-4o, Gemini-Pro, and Llama-4. The core component of MFA is the Attention-Transfer Attack (ATA), which hides harmful instructions inside a meta task with competing objectives. We provide a theoretical perspective based on reward hacking to explain why this attack succeeds. To improve cross-model transferability, we further introduce a lightweight transfer-enhancement algorithm combined with a simple repetition strategy that jointly bypasses both input-level and output-level filters without model-specific fine-tuning. Empirically, we show that adversarial images optimized for one vision encoder transfer broadly to unseen VLMs, indicating that shared visual representations create a cross-model safety vulnerability. Overall, MFA achieves a 58.5% success rate and consistently outperforms existing methods. On state-of-the-art commercial models, MFA reaches a 52.8% success rate, surpassing the second-best attack by 34%. These results challenge the perceived robustness of current defense mechanisms and highlight persistent safety weaknesses in modern VLMs. Code: this https URL
多面攻击:揭示配备防御机制的视觉语言模型中的跨模型漏洞 / Multi-Faceted Attack: Exposing Cross-Model Vulnerabilities in Defense-Equipped Vision-Language Models
这篇论文提出了一种名为多面攻击的新方法,能够有效绕过当前主流视觉语言模型的多重安全防护,揭示了这些模型因共享视觉表示而存在的普遍安全漏洞,攻击成功率远超现有方法。