zkSync Era-logo

zkSync Era

zkSync Era is a layer 2 rollup that uses zero-knowledge proofs to scale Ethereum without compromising on security or decentralization. Since it's EVM compatible (Solidity/Vyper), 99% of Ethereum projects can redeploy without refactoring or re-auditing a single line of code.

ETH
zkSync
Blockchain
L2
Solidity
Yul
Maximum Bounty
$1,100,000
Live Since
10 March 2023
Last Updated
17 September 2024
  • PoC required

  • KYC required

Select the category you'd like to explore

Assets in Scope

Target
Type
Added on
Blockchain/DLT - Secp256r1 verify
17 September 2024
Target
Type
Added on
Blockchain/DLT - Transient Storage
17 September 2024
Target
Type
Added on
Smart Contract - P256Verify
13 June 2024
Target
Type
Added on
Smart Contract - EcPairing
13 June 2024
Target
Type
Added on
Smart Contract - CodeOracle
13 June 2024
Target
Type
Added on
Smart Contract - PubdataChunkPublisher
13 June 2024
Target
Type
Added on
Smart Contract - Create2Factory
13 June 2024
Target
Type
Added on
Blockchain/DLT - SNARK wrapper
18 April 2024
Target
Type
Added on
Blockchain/DLT - Supplementary code
18 April 2024
Target
Type
Added on
Blockchain/DLT - Scheduler
18 April 2024
Target
Type
Added on
Blockchain/DLT - Recursion
18 April 2024
Target
Type
Added on
Blockchain/DLT - Finite State Machine Input Output
18 April 2024

Impacts in Scope

Critical
Direct theft of any user funds, whether at-rest or in-motion
Critical
Permanent freezing of funds (that cannot be fixed by upgrade)
Critical
Protocol insolvency
Critical
Execute arbitrary system commands
Critical
Retrieve sensitive data/files from a running server such as: database passwords, blockchain keys, etc (this does not include non-sensitive environment variables, open source code, or usernames)
Critical
Taking down the application/website
Critical
Direct loss of funds
High
Permanent freezing of funds (that can be fixed by upgrade)
High
Permanent stopping the priority queue
High
Theft of user fees
High
Contract verification bypass
High
Misrepresentation of the transaction data that may lead to misleading third party users (e.g. manipulating transaction event log representation, transfer amount, etc)

Out of scope

Program's Out of Scope information

The following impacts and attack vectors are excluded from rewards by default for all Immunefi bug bounty programs:

  • Attacks that the reporter has already exploited themselves, leading to damage
  • Attacks requiring access to leaked keys/credentials
  • Attacks requiring access to privileged addresses (governance, operator), except in such cases where the contracts are intended to have no privileged access to functions that make the attack possible
  • Broken link hijacking is out of scope

Smart Contracts

  • Basic economic governance attacks (e.g. 51% attack)
  • Best practice critiques
  • Sybil attacks
  • Centralization risks

Websites and Apps

  • Theoretical impacts without any proof or demonstration
  • Content spoofing / Text injection issues
  • Self-XSS
  • Captcha bypass using OCR
  • CSRF with no security impact (logout CSRF, change language, etc.)\
  • Missing HTTP Security Headers (such as X-FRAME-OPTIONS) or cookie security flags (such as “httponly”)
  • Server-side information disclosure such as IPs, server names, and most stack traces
  • Vulnerabilities used to enumerate or confirm the existence of users or tenants
  • Vulnerabilities requiring unlikely user actions
  • URL Redirects (unless combined with another vulnerability to produce a more severe vulnerability)
  • Lack of SSL/TLS best practices
  • Attacks involving DDoS
  • Attacks requiring privileged access from within the organization
  • SPF records for email domains
  • Feature requests
  • Best practices

Blockchain/DLT

  • Attacks requiring changing the verifier key

Prohibited Activities:

The following activities are prohibited by this bug bounty program. Violation of these rules can result in a temporary suspension or permanent ban from the Immunefi platform at the sole discretion of the Immunefi team, which may also result in: 1) the forfeiture and loss of access to all bug submissions, and 2) zero payout.

Please note that Immunefi has no tolerance for spam/low-quality/incomplete bug reports, “beg bounty” behavior, and misrepresentation of assets and severity. Immunefi exists to protect the global crypto community, not facilitate grift.

Prohibited:

  • Any testing with mainnet or public testnet deployed code; all testing should be done on private testnets
  • Attempting phishing or other social engineering attacks against our employees and/or customers
  • Any testing with third party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
  • Any denial of service attacks
  • Automated testing of services that generates significant amounts of traffic
  • Public disclosure of an unpatched vulnerability in an embargoed bounty
  • Any other actions prohibited by the Immunefi Rules. These rules are subject to change at any time.