Platform: Code4rena
Start Date: 13/11/2023
Pot Size: $24,500 USDC
Total HM: 3
Participants: 120
Period: 4 days
Judge: 0xTheC0der
Id: 306
League: ETH
Rank: 115/120
Findings: 1
Award: $1.37
🌟 Selected for report: 0
🚀 Solo Findings: 0
🌟 Selected for report: rvierdiiev
Also found by: 0x175, 0x3b, 0xMango, 0xarno, 0xpiken, Bauchibred, DarkTower, ElCid, Giorgio, HChang26, Kose, KupiaSec, Madalad, PENGUN, Pheonix, RaoulSchaffranek, SpicyMeatball, T1MOH, Tricko, Udsen, Yanchuan, aslanbek, ast3ros, bart1e, bin2chen, chaduke, d3e4, deepkin, developerjordy, glcanvas, inzinko, jasonxiale, jnforja, mahyar, max10afternoon, mojito_auditor, neocrao, nmirchev8, openwide, osmanozdemir1, peanuts, pep7siup, peritoflores, pontifex, rice_cooker, rouhsamad, t0x1c, tnquanghuy0512, turvy_fuzz, twcctop, ustas, vangrim, zhaojie, zhaojohnson
1.3743 USDC - $1.37
https://github.com/code-423n4/2023-11-canto/blob/335930cd53cf9a137504a57f1215be52c6d67cb3/1155tech-contracts/src/bonding_curve/LinearBondingCurve.sol#L14-L25 https://github.com/code-423n4/2023-11-canto/blob/335930cd53cf9a137504a57f1215be52c6d67cb3/1155tech-contracts/src/Market.sol#L150-L189
MEV Attack to gain profit
When we observe Alice want to buy some shares, we buy some shares with current price by frontrunning. Alice's buy() operation will increase current share's price. Then we sell our shares to gain profits.
Manual
MEV
#0 - c4-pre-sort
2023-11-19T09:12:01Z
minhquanym marked the issue as duplicate of #12
#1 - c4-judge
2023-11-28T23:38:55Z
MarioPoneder marked the issue as satisfactory