Vera Verto: Multimodal Hijacking Attack

Fuente: arXiv
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Autores principales: Zhang, Minxing, Salem, Ahmed, Backes, Michael, Zhang, Yang
Formato: Preprint
Publicado: 2024
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author Zhang, Minxing
Salem, Ahmed
Backes, Michael
Zhang, Yang
author_facet Zhang, Minxing
Salem, Ahmed
Backes, Michael
Zhang, Yang
contents The increasing cost of training machine learning (ML) models has led to the inclusion of new parties to the training pipeline, such as users who contribute training data and companies that provide computing resources. This involvement of such new parties in the ML training process has introduced new attack surfaces for an adversary to exploit. A recent attack in this domain is the model hijacking attack, whereby an adversary hijacks a victim model to implement their own -- possibly malicious -- hijacking tasks. However, the scope of the model hijacking attack is so far limited to the homogeneous-modality tasks. In this paper, we transform the model hijacking attack into a more general multimodal setting, where the hijacking and original tasks are performed on data of different modalities. Specifically, we focus on the setting where an adversary implements a natural language processing (NLP) hijacking task into an image classification model. To mount the attack, we propose a novel encoder-decoder based framework, namely the Blender, which relies on advanced image and language models. Experimental results show that our modal hijacking attack achieves strong performances in different settings. For instance, our attack achieves 94%, 94%, and 95% attack success rate when using the Sogou news dataset to hijack STL10, CIFAR-10, and MNIST classifiers.
format Preprint
id arxiv_https___arxiv_org_abs_2408_00129
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Vera Verto: Multimodal Hijacking Attack
Zhang, Minxing
Salem, Ahmed
Backes, Michael
Zhang, Yang
Cryptography and Security
Machine Learning
The increasing cost of training machine learning (ML) models has led to the inclusion of new parties to the training pipeline, such as users who contribute training data and companies that provide computing resources. This involvement of such new parties in the ML training process has introduced new attack surfaces for an adversary to exploit. A recent attack in this domain is the model hijacking attack, whereby an adversary hijacks a victim model to implement their own -- possibly malicious -- hijacking tasks. However, the scope of the model hijacking attack is so far limited to the homogeneous-modality tasks. In this paper, we transform the model hijacking attack into a more general multimodal setting, where the hijacking and original tasks are performed on data of different modalities. Specifically, we focus on the setting where an adversary implements a natural language processing (NLP) hijacking task into an image classification model. To mount the attack, we propose a novel encoder-decoder based framework, namely the Blender, which relies on advanced image and language models. Experimental results show that our modal hijacking attack achieves strong performances in different settings. For instance, our attack achieves 94%, 94%, and 95% attack success rate when using the Sogou news dataset to hijack STL10, CIFAR-10, and MNIST classifiers.
title Vera Verto: Multimodal Hijacking Attack
topic Cryptography and Security
Machine Learning
url https://arxiv.org/abs/2408.00129