Manual Review

A thorough line-by-line review was conducted on the codebase to identify potential malfunctions and vulnerabilities in SaucerSwap Labs' UniswapV2-like router implementation.

As the project at hand implements a Hedera Network compatible UniswapV2 router implementation, intricate care was put into ensuring that the flow of funds within the system conforms to the specifications and restrictions laid forth within the protocol's specification as well as with the native Hedera Network token transfer protocols.

We validated that all state transitions of the system occur within sane criteria and that all rudimentary formulas within the system execute as expected. We pinpointed a significant vulnerability within the system's ETH-output exchange mechanism which could have had severe ramifications to its overall operation.

Additionally, the system was investigated for any other commonly present attack vectors such as re-entrancy attacks, mathematical truncations, logical flaws and ERC / EIP standard inconsistencies. The documentation of the project was satisfactory to the extent it need be.

A total of 11 findings were identified over the course of the manual review of which 4 findings concerned the behaviour and security of the system. The non-security related findings, such as optimizations, are included in the separate Code Style chapter.

The finding table below enumerates all these security / behavioural findings:

ID	Severity	Addressed	Title
HTS-01M			Inexistent Sanitization of Token Configuration
UVR-01M			Potential Arithmetic Underflow
UVR-02M			Potentially Discrepant Exchange Flow
UVR-03M			Incorrect Recipient of ETH Outputs