Platform: Code4rena
Start Date: 06/09/2022
Pot Size: $90,000 USDC
Total HM: 33
Participants: 168
Period: 9 days
Judge: GalloDaSballo
Total Solo HM: 10
Id: 157
League: ETH
Rank: 122/168
Findings: 1
Award: $60.77
🌟 Selected for report: 0
🚀 Solo Findings: 0
🌟 Selected for report: Lambda
Also found by: 0x1337, 0x1f8b, 0x4non, 0x85102, 0xA5DF, 0xNazgul, 0xSmartContract, 0xbepresent, 0xc0ffEE, 8olidity, Aymen0909, B2, Bnke0x0, CRYP70, Captainkay, CertoraInc, Ch_301, Chom, ChristianKuri, CodingNameKiki, Deivitto, Diana, DimitarDimitrov, ElKu, EthLedger, Franfran, Funen, GimelSec, JansenC, Jeiwan, Jujic, Lead_Belly, MEP, MasterCookie, MiloTruck, Noah3o6, PPrieditis, PaludoX0, Picodes, PwnPatrol, R2, Randyyy, RaymondFam, Respx, ReyAdmirado, Rolezn, Samatak, Tointer, Tomo, V_B, Waze, _Adam, __141345__, a12jmx, ak1, asutorufos, azephiar, ballx, bharg4v, bin2chen, bobirichman, brgltd, bulej93, c3phas, cccz, ch0bu, cloudjunky, cryptonue, cryptostellar5, cryptphi, csanuragjain, d3e4, datapunk, davidbrai, delfin454000, dharma09, dic0de, dipp, djxploit, eierina, erictee, fatherOfBlocks, gogo, hansfriese, hyh, imare, indijanc, izhuer, jonatascm, ladboy233, leosathya, lucacez, lukris02, m9800, martin, minhtrng, ne0n, neumo, oyc_109, p_crypt0, pashov, pauliax, pcarranzav, pedr02b2, peritoflores, pfapostol, rbserver, ret2basic, robee, rvierdiiev, sach1r0, sahar, scaraven, sikorico, simon135, slowmoses, sorrynotsorry, tnevler, tonisives, volky, yixxas, zkhorse, zzzitron
60.7742 USDC - $60.77
Lack of zero-address checks may lead to infunctional protocol especially in the case wherein variable is immutable like the tokenImpl .
Consider adding zero-address checks such as: require(_tokenImpl != address(0));
https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/manager/Manager.sol#L55-L72 https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/governance/governor/Governor.sol#L41-L43 https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/governance/treasury/Treasury.sol#L32-L34 https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/auction/Auction.sol#L39-L42 https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/token/Token.sol#L30
Some of the events in the codebase are not indexed. Indexing event parameters enable off-chain services to search and filter for specific events. see reference: Low severity finding from OpenZeppelin Audit of HoldeFi [L09] Lack of indexed parameters in events https://blog.openzeppelin.com/holdefi-audit/#low
Add the indexed keyword to the events.
Accidentaly setting parameters to zero-address to most variables will lose its major functionalities, one example is the vetoer role.
I suggest adding a zero-address input check, the same as the checks done for the other parameters. Ex:
if (_vetoer == address(0)) revert ADDRESS_ZERO();
https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/governance/governor/Governor.sol#L57-L87 https://github.com/code-423n4/2022-09-nouns-builder/blob/7e9fddbbacdd7d7812e912a369cfd862ee67dc03/src/auction/Auction.sol#L54-L82
#0 - GalloDaSballo
2022-09-27T00:50:15Z
L
Indexed events -> need to develop the finding, why do you want to do that?