Serai

Serai is an actively developed cross-chain, decentralized exchange for Bitcoin, Ethereum, and Monero. Built from scratch in Rust, Serai uses threshold multisignatures to secure coins under its own decentralized network.

For more information about Serai, please visit https://github.com/serai-dex/serai

Serai provides rewards in USDC. For more details about the payment process, please view the Rewards by Threat Level section further below.

KYC Requirement

The provision of KYC is required to receive a reward for this bug bounty program, where the following information will be required to be provided:

• IRS form W-8/W-9, as applicable
• Applicant is not listed on the OFAC SDN list

KYC information is only required on confirmation of the validity of a bug report.

Responsible Publication

Serai adheres to category 1. This Policy determines what information whitehats are allowed to make public from their submitted bug reports. For more information about the category selected, please refer to our Responsible Publication page.

Primacy of Impact vs Primacy of Rules

Serai adheres to the Primacy of Impact for the following severity levels:

• Blockchain/DLT - Critical
• Blockchain/DLT - High
• Blockchain/DLT - Medium
• Blockchain/DLT - Low

If a category’s severity level is covered within the Primacy of Impact, it means that even if the impacted asset is not in-scope but is owned by the project, then it would be considered as in-scope of the bug bounty program as long as it involves an impact under that respective severity level. When submitting a report, just select the Primacy of Impact asset placeholder. If the team behind this project has multiple projects, those other projects are not covered under the Primacy of Impact of this program. Instead, check if those other projects have a bug bounty program on Immunefi.

All other severity levels not listed here are considered under the Primacy of Rules, which means that they are bound by the terms of the bug bounty program.

Known Issue Assurance

Serai commits to providing Known Issue Assurance to bug submissions through their program. This means that Serai will either disclose known issues publicly or at the very least privately via a self-reported bug submission in order to allow for a more objective and streamlined mediation process to prove that an issue is known. Otherwise, assuming the bug report itself is valid, it would result in the bug report being considered in-scope and due 100% of the reward with respect to the bug bounty program terms.

Immunefi Standard Badge

Serai has satisfied the requirements for the Immunefi Standard Badge, which is given to projects that adhere to our best practices.

Rewards are distributed according to the impact the vulnerability could otherwise cause based on the Impacts in Scope table further below.

Overtime Attack Limitations

In cases of attacks executed over time for smart contract and blockchain/DLT bugs, an explicit two hour window without human intervention is provided, starting from the first erroneous or malicious action. Only achievements during this window will be counted, regardless of further impact.

Public Disclosure of Known Issues

Bug reports covering previously-discovered bugs acknowledged below are not eligible for any reward through the bug bounty program.

• https://github.com/serai-dex/serai/issues
• https://github.com/serai-dex/serai/tree/develop/audits

Previous Audits

Serai has provided these completed audit review reports for reference. Any unfixed vulnerability mentioned in these reports are not eligible for a reward.

• https://github.com/serai-dex/serai/blob/develop/audits/Cypher%20Stack%20crypto%20March%202023/Audit.pdf

Proof of Concept (PoC) Requirements

A PoC is required for the following severity levels:

• Blockchain/DLT - Critical

In addition, PoC will be required for the following low impact:

• Undocumented panic

All PoCs submitted must comply with the Immunefi-wide PoC Guidelines and Rules. Bug report submissions without a PoC when a PoC is required will not be provided with a reward.

Reward Payment Terms

Payouts are handled by the Serai team directly and are denominated in USD. However, payments are done in USDC.

All code of Serai can be found at https://github.com/serai-dex/serai.

These impacts are out of scope for this bug bounty program.

All Categories

• Attacks that the reporter has already exploited themselves, leading to damage
• Attacks requiring access to leaked keys/credentials, though not attacks gaining access to keys/credentials
• Broken link hijacking is out of scope

Smart Contracts and Blockchain/DLT

• Attacks breaking BFT assumptions
• Lack of liquidity
• Best practice critiques
• Centralization risks
• Signature production by the threshold
• Attacks reliant on attacking an out of scope communication protocol between library users
• Invalid circumstances reachable by providing invalid hashes/curves/ciphersuites/algorithms/etc
• Attacks on the cross-group discrete logarithm proof, marked experimental
• Vulnerabilities/issues in tests/code explicitly for tests
• Bugs only reachable via unsafe code