Omniscia Nexera Audit
Manual Review
Manual Review
A thorough line-by-line review was conducted on the codebase to identify potential malfunctions and vulnerabilities in Nexera's tokenization system update.
As the project at hand implements a code delta, 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 and that the code delta has not regressed any security traits that have been established in previous audits.
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 single significant vulnerability within the system which could have had severe ramifications to its proper operation as well as certain pathways via which campaign owners can maliciously affect their campaigns.
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 a great extent, containing expansive in-line documentation throughout the system as well as well-defined use cases.
A total of 37 findings were identified over the course of the manual review of which 13 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 |
|---|---|---|---|
| DFU-01M |  |  | Inexistent Application of Call States |
| DRE-01M | | | Inexistent Application of Call States |
| FEP-01M |  |  | Misleading Function Purpose |
| PPS-01M |  | | Inexplicable Specification of Payable Modifier |
| PPG-01M | | | Invalid Function Requirement Documentation |
| PPC-01M | | | Inexistent Validation of Fee Proportion |
| PWA-01M | | | Invalid Function Requirement Documentation |
| PWF-01M | | | Inexistent Validation of Fee Proportion |
| PDI-01M | | | Inexistent Restriction of Selectors |
| RAN-01M | | | Inexistent Application of Call States |
| RFN-01M |  | | Clashing Function Name |
| TCA-01M | | | Redundant Limitation of Per Account Softcap |
| UPF-01M | | | Inexistent Restriction of Cliff Updates |