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CertiK Issues Skynet Alert: Era Lend Suffers $3.4 Million Exploit on zkSync

by Dan K
Jul 26, 2023 - 2:00 pm
in Blockchain
Representatives from government, banks, and major firms at HashKey Capital's grand launch in Hong Kong.

CertiK Reports Read-Only Reentrancy Attack on Era Lend

CertiK, a blockchain security company known for identifying vulnerabilities and exploits, has revealed the recent attack on Era Lend as a “read-only reentrancy attack.” This kind of assault disrupts the natural flow of transactions within a smart contract. An attacker interrupts a series of operations, manipulating the contract to continue executing malicious actions without updating its state.

Attack Mechanism Uncovered

According to the report, the attacker drained funds using two separate transactions from the account 0xf1D076c9Be4533086f967e14EE6aFf204D5ECE7a. A vulnerability was discovered in the callback and _updateReserves function of the platform, allowing the attacker to report outdated values.

Era Lend’s Prompt Response and Precautionary Measures

The Era Lend team promptly identified the attack and took immediate steps to safeguard their protocol’s zkSync contracts. They have since released a statement advising users to refrain from depositing the USDC asset for now, as it was the pool targeted by the attacker.

Other Syncswap Projects Could Be Next

As Era Lend is a fork of the Syncswap project, which facilitates easy-to-use decentralized finance (DeFi) and scales Ethereum (ETH), CertiK suggests that other projects using Syncswap might also be targets for similar exploits.

Concluding Remarks

This high-profile exploit of Era Lend on the zkSync platform underscores the urgency and importance of robust security measures within the blockchain and defi space. The incident highlights the sophisticated and evolving tactics employed by malicious actors in this arena, in this case, a read-only reentrancy attack.

Prompt detection and action by the Era Lend team demonstrate their commitment to user safety. Their subsequent precautions, including advising users to refrain from depositing into the affected USDC pool, are prudent steps towards damage control.

However, the threat extends beyond just Era Lend. Other projects using Syncswap could potentially be the next victims. As such, blockchain security companies like CertiK continue to play a crucial role in mitigating these threats, constantly identifying vulnerabilities and issuing alerts. This incident serves as a stark reminder for the defi community to stay vigilant and prioritize security in these fast-evolving digital times.

Tags: BlockchainCertiKHackZkSync
Dan K

Dan K

Dan K, the chief editor, is a visionary wordsmith, shaping narratives with finesse. His discerning eye for detail creates literary masterpieces.

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