Understanding the Security Risks of Decentralized Exchanges by Uncovering Unfair Trades in the Wild
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909078721134592 |
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| author | Chen, Jiaqi Wang, Yibo Zhou, Yuxuan Ding, Wanning Tang, Yuzhe Wang, XiaoFeng Li, Kai |
| author_facet | Chen, Jiaqi Wang, Yibo Zhou, Yuxuan Ding, Wanning Tang, Yuzhe Wang, XiaoFeng Li, Kai |
| contents | DEX, or decentralized exchange, is a prominent class of decentralized finance (DeFi) applications on blockchains, attracting a total locked value worth tens of billions of USD today.
This paper presents the first large-scale empirical study that uncovers unfair trades on popular DEX services on Ethereum and Binance Smart Chain (BSC). By joining and analyzing 60 million transactions, we find 671,400 unfair trades on all six measured DEXes, including Uniswap, Balancer, and Curve. Out of these unfair trades, we attribute 55,000 instances, with high confidence, to token thefts that cause a value loss of more than 3.88 million USD. Furthermore, the measurement study uncovers previously unknown causes of extractable value and real-world adaptive strategies to these causes. Finally, we propose countermeasures to redesign secure DEX protocols and to harden deployed services against the discovered security risks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_11547 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Understanding the Security Risks of Decentralized Exchanges by Uncovering Unfair Trades in the Wild Chen, Jiaqi Wang, Yibo Zhou, Yuxuan Ding, Wanning Tang, Yuzhe Wang, XiaoFeng Li, Kai Cryptography and Security DEX, or decentralized exchange, is a prominent class of decentralized finance (DeFi) applications on blockchains, attracting a total locked value worth tens of billions of USD today. This paper presents the first large-scale empirical study that uncovers unfair trades on popular DEX services on Ethereum and Binance Smart Chain (BSC). By joining and analyzing 60 million transactions, we find 671,400 unfair trades on all six measured DEXes, including Uniswap, Balancer, and Curve. Out of these unfair trades, we attribute 55,000 instances, with high confidence, to token thefts that cause a value loss of more than 3.88 million USD. Furthermore, the measurement study uncovers previously unknown causes of extractable value and real-world adaptive strategies to these causes. Finally, we propose countermeasures to redesign secure DEX protocols and to harden deployed services against the discovered security risks. |
| title | Understanding the Security Risks of Decentralized Exchanges by Uncovering Unfair Trades in the Wild |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2401.11547 |