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ICON

ICON is an open-source layer 1 delegated proof-of-stake (DPoS) blockchain and smart contract platform focused on connecting unique blockchains and their respective communities. ICON’s Blockchain Transmission Protocol (BTP) is a trustless and chain-agnostic interoperability solution that supports generic smart contract calls between connected blockchains.

Icon
Blockchain
Bridge
Crosschain Liquidity
L1
Go
Maximum Bounty
$100,000
Live Since
21 October 2022
Last Updated
08 April 2024
  • PoC required

  • KYC required

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Assets in Scope

Target
Type
Blockchain/DLT - Goloop
Added on
21 October 2022

Impacts in Scope

Severity
Critical
Title
Network not being able to confirm new transactions (Total network shutdown)
Severity
Critical
Title
Unintended permanent chain split requiring hard fork (Network partition requiring hard fork)
Severity
Critical
Title
Direct loss of funds
Severity
Critical
Title
Permanent freezing of funds (fix requires hardfork)
Severity
Critical
Title
Arbitrary transaction affecting ICON ledger
Severity
Critical
Title
Change block data which is already finalised
Severity
Critical
Title
Arbitrary smart contract (Score) call, updating or deleting Score without permission
Severity
Critical
Title
Inconsistent data in partitioned blockchain
Severity
Critical
Title
Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield
Severity
Critical
Title
Direct theft of any user NFTs, whether at-rest or in-motion, other than unclaimed royalties
Severity
Critical
Title
Permanent freezing of funds
Severity
Critical
Title
Permanent freezing of NFTs

Out of scope

Program's Out of Scope information

The following vulnerabilities are excluded from the rewards for this bug bounty program:

  • 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, strategist)

Smart Contracts and Blockchain

  • Incorrect data supplied by third party oracles
    • Not to exclude oracle manipulation/flash loan attacks
  • Basic economic governance attacks (e.g. 51% attack)
  • Lack of liquidity
  • Best practice critiques
  • Sybil attacks
  • Centralization risks
  • Python smart contract deployment scenarios
  • Http request issues such as rate limiting, throttling, timeouts, or anything else that can be resolved on the server

Scopes Temporarily Paused

When we receive a valid bug report, we update this section to allow our internal engineers time to investigate bugs in the same modules and scope. These scopes are paused for 4 weeks and then removed from the list.

Prohibited Activities

The following activities are prohibited by this bug bounty program:

  • Any testing with mainnet or public testnet contracts; all testing should be done on private testnets
  • Any testing with pricing oracles or third party smart contracts
  • 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