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Missing zero-address checks #35

Open

code423n4 opened this issue Sep 15, 2021 · 1 comment

Labels

1 (Low Risk) bug sponsor acknowledged

Contributor

code423n4 commented Sep 15, 2021

Handle

0xRajeev

Vulnerability details

Impact

Zero-address checks during initialization of address type variables is a best-practice. This is missing in several places of the protocol contracts.

Proof of Concept

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Vault.sol#L55

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Vault.sol#L76

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Manager.sol#L201

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Manager.sol#L280

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Manager.sol#L310

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Harvester.sol#L85

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Harvester.sol#L109

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/Harvester.sol#L160

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/controllers/LegacyController.sol#L43

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/strategies/BaseStrategy.sol#L61-L66

https://github.com/code-423n4/2021-09-yaxis/blob/cf7d9448e70b5c1163a1773adb4709d9d6ad6c99/contracts/v3/strategies/NativeStrategyCurve3Crv.sol#L41-L47

Tools Used

Manual Analysis

Recommended Mitigation Steps

Add zero-address checks

code423n4 added 1 (Low Risk) bug labels

code423n4 added a commit that referenced this issue


          0xRajeev issue #35

31fdd6e

This was referenced Sep 28, 2021

Missing zero-address check in setGovernance #148

Closed

Add non-zero address checks. #150

Closed

GainsGoblin added the sponsor acknowledged label

gpersoon mentioned this issue

add MIM strategy yaxis-project/metavault#97

Merged

Collaborator

GalloDaSballo commented Oct 13, 2021

Agree with finding
Sponsor mitigated
I appreciate that the Warden linked all instances of the finding making it easy to mitigate

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