DeFi

Decentralized exchange GMX suffers $565K price manipulation ‘exploit’

Decentralized change (DEX) GMX has reportedly suffered a value manipulation exploit from an exploiter who managed to make off with round $565,000 from the AVAX/USD market.

The unidentified exploiter is known to have capitalized on GMX’s “minimal unfold” and “zero value influence” options to drag off the exploit, which impacted GLP token holders who supplied liquidity within the type of AVAX (the Avalanche token) to GMX.

GMX confirmed the worth manipulation exploit in a Sept. 18 submit on Twitter, however said that the AVAX/USD market would stay open regardless of imposing a $2 million cap on lengthy positions and $1 million cap on quick positions.

Head of Derivatives at Genesis Buying and selling Joshua Lim was one of many first to investigate the exploit, stating that the exploiter “efficiently extracted earnings from GMX’s AVAX/USD market by opening giant positions at 0 slippage” earlier than transferring the AVAX/USD to centralized exchanges at a barely increased value.

Lim mentioned this exploit methodology was repeated 5 occasions, with the primary cycle taking impact at 01:15 UTC on Sept. 18. Every cycle transferred greater than 200,000 AVAX tokens, (roughly $4-5 million per cycle) with the exploiter extracting about $565,000 in revenue after paying unfold to market makers on different exchanges.

Lim nevertheless famous that this wasn’t an “exploit” in that it was “GMX working as designed.”

Technical analyst “Duo 9” added that the exploiter was capable of take advantage of a number of giant trades in opposition to GLP holders as a result of the fastened costs provided by the Chainlink-run oracles include no value influence, which is what made the worth manipulation exploit attainable.

“If merchants make revenue, the liquidity suppliers lose. If merchants exploit this vulnerability, the GLP holders could lose all their cash!”

Whereas GMX instantly capped quick and lengthy open curiosity for AVAX/USD to guard the DEX from additional manipulation, Lim mentioned that GMX could have to scrap its “zero value influence” characteristic regardless of it efficiently onboarding many customers to this point.

“The true difficulty is GMX would not replicate the true value of liquidity like different venues do, it provides limitless liquidity at a mid-market oracle value.”

The current exploit comes solely weeks after the founding father of Layer-2 DEX ZigZag “Taureau” mentioned in a Sept. 2 video name that he doubted GMX’s change mannequin can be sustainable over the long run, including {that a} dealer with the best technique may wipe out GLP token holders:

Group Response

The information caused combined reactions from the GMX neighborhood. One Twitter person highlighted the truth that no good contract was exploited, whereas one other Twitter person asked GMX whether or not any compensation can be paid out to affected GLP holders.

Associated: What are decentralized exchanges, and the way do DEXs work?

On GMX, liquidity suppliers provide BTC, ETH, AVAX and stablecoins in change for the GLP token. The protocol was launched in late 2021 on Ethereum layer-2 scaling community Arbitrum.

The GMX token (GMX) is presently priced at $39.07, down 16.7% during the last 24 hours, based on CoinGecko.

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