Potentional Vulnerabilities Found in ETH 2.0

Least Authority have found potentional security issues in the network P2P interaction and block proposal system
26 March 2020   963

Technology security firm Least Authority, at the request of the Ethereum Foundation, conducted an audit of the Ethereum 2.0 specifications and identified several potential vulnerabilities at once.

Least Authority said that developers need to solve problems with vulnerabilities in the network layer of peer-to-peer (P2P) interaction, as well as in the block proposal system. At the same time, the auditor noted that the specifications are "very well thought out and competent."

However, at the moment there is no large ecosystem based on PoS and using sharding in the world, so it is impossible to accurately assess the prospects for system stability.
Also, information security experts emphasized that the specifications did not pay enough attention to the description of the P2P network level and the system of records about Ethereum nodes. Vulnerability risks are also observed in the block proposal system and the messaging system between nodes.

Experts said that in the blockchains running on PoS, the choice of a new block is simple and no one can predict who will get the new block. In PoS systems, it is the block proposal system that decides whose block will fall into the blockchain, and this leads to the risk of data leakage. To solve the problem, auditors suggested using the mechanism of "Single Secret Leader Election" (SSLE).

As for the peer-to-peer exchange system, there is a danger of spam. There is no centralized node in the system that would evaluate the actions of other nodes, so a “malicious" node can spam the entire network with various messages without any special punishment. The solution to this problem may be to use special protocols for exchanging messages between nodes.

Uniswap V2 to be Launched

One of the key features of the upcoming version is that any ERC20 token can be pooled directly with any other ERC20 token
24 March 2020   281

Uniswap protocol developers announced the launch of the second version of a decentralized platform in the next quarter.

Among the new features of Uniswap v2:

  •  any ERC20 token can be pooled directly with any other ERC20 token
  • instant swaps, providing for the possibility of withdrawing “as many coins as you like” for, for example, arbitrage and margin trading operations
  • An improved pricing model, which provides the oracles for determining the market rate at the beginning of each block, immediately before the conclusion of transactions

The updated decentralized platform is already being tested on the Ethereum networks Ropsten, Kovan, Rinkeby and Goerli.

In general, the popularity of Uniswap continues to grow - since the beginning of 2020, the trading volume on this platform has increased by 192%.