Etherum’s Pectra Upgrade to Testet Sepolia targeted an unidentified striker: Report

An unknown striker made Etherum developers to take out “private fix”, because the network came with technical issues during the Pectar on Test Sepolia.

In the post-incident reportEtherum Developer Marius Van der Vijden discovered that the attacker exploited the “case” of the edge “, repeatedly activates the transfer of zero-token transfer to the deposit agreement, further complicate the already disturbing already problematic switching.

What happened?

5. Marta Pectra upgrade went live In Sepolia, but almost immediately, developers started seeing error messages that will appear on their geth nodes, in addition to increasing empty blocks that were mined.

According to Van der Sajden, the question arises from a deposit agreement, which emits an unexpected event – a portable event instead of the required deposit event – which caused the nodes to refuse transactions and create only empty blocks.

Bug was connected to the EIP-6110, which requires all logs from a deposit agreement that will be approved evenly.

The Geth team used the correction that “ignored all the wrong logs coming from the deposit agreement”, but developers, but the developers reportedly overlook the specific edge case of ERC-20.

“ERC20 standard does not prohibit 0 token transmissions, it allows anyone (even if it does not have any token) to transfer 0 tokens to explain the event”, adding that the “attacker” used to send deposit transfer repeatedly.

It started the same mistake and made the net continue mining blocks.

Initially, developers suspected that a trusted validator was wrong, but after the investigation, the question was followed at a newly financed account of public tap.

To stop the attack, developers needed to filter transactions in interaction with a deposit agreement. However, the attacker monitored their cheets, which made them discover “Private fixing” to choose devops knots that control about 10% of the network.

Once the correction is arranged, the knots continued to produce full blocks, allowing the chain to function normally until 14:00 UTC. A few blocks later, the attacker’s transaction was successfully mined, which confirmed that all node operators were updated.

Despite the disorders, Etherum “never lost finalization,” and the question was limited to Sepoli, because his contract on the deposit on Van der Vijden.

However, developers decided to postpone the upgrade of Petar for further testing and removing errors.

What is Etherum’s Pectra Upgrade?

The pectra fork is designed to improve elije condition, improving layer scalability and expand network capacity. Introduces 11 proposals to improve Etherem (EIPs) and since then signifies the first main upgrade Dencunwho went live in March 2024. years.

As previously reported cripto.news, developers planned to be distributed Pectra on Mainet to 8. April provided that both Holy and Test Tams successfully completed their upgrades.

The upgrade was first realized on Holeski Testnet 24. February, where he also ran into technical issues that prevented finalization.