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Toucan

Toucan is building technology to finance climate action at scale. They are developing infrastructure to move carbon credits onto open blockchains, which helps make carbon markets more transparent, efficient, accessible, and scalable.

Polygon
Defi
Services
Token
Solidity
Maximum Bounty
$200,000
Live Since
03 November 2022
Last Updated
11 November 2024
  • PoC required

  • KYC required

Select the category you'd like to explore

Assets in Scope

Target
Type
Smart Contract - ToucanCarbonOffsetsEscrow
Added on
13 September 2024
Target
Type
Smart Contract - PuroToucanCarbonOffsetsFactory
Added on
13 September 2024
Target
Type
Smart Contract - PuroToucanCarbonOffsets
Added on
13 September 2024
Target
Type
Smart Contract - ToucanContractRegistry
Added on
13 September 2024
Target
Type
Smart Contract - ToucanCarbonOffsetsEscrow
Added on
13 September 2024
Target
Type
Smart Contract - RetirementsCertificates
Added on
13 September 2024
Target
Type
Smart Contract - PuroToucanCarbonOffsetsFactory
Added on
13 September 2024
Target
Type
Smart Contract - PuroToucanCarbonOffsets
Added on
13 September 2024
Target
Type
Smart Contract - FxHashNFTCarbonExtension
Added on
13 September 2024
Target
Type
Smart Contract - FeeCalculator
Added on
13 September 2024
Target
Type
Smart Contract - CarbonProjects
Added on
13 September 2024
Target
Type
Smart Contract - CarbonProjectVintages
Added on
13 September 2024

Impacts in Scope

Severity
Critical
Title

Direct theft of any funds belonging to specific users, 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

Severity
Critical
Title

Unauthorized minting of NFTs or tokens

Severity
Critical
Title

Unintended alteration of what the NFT represents (e.g. token URI, payload, artistic content)

Severity
Critical
Title

Protocol insolvency

Severity
Critical
Title

Obtaining admin access or any other privileged role which can lead to abuse of the protocol

Severity
High
Title

Theft of unclaimed yield

Severity
High
Title

Theft of unclaimed royalties

Severity
High
Title

Permanent freezing of unclaimed yield

Severity
High
Title

Permanent freezing of unclaimed royalties

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)

  • Attacks involving functionality which is currently paused, e.g. the process of bridging credits from Verra, which includes:

    • linking of batch NFTs in CarbonOffsetBatches contract with project vintages
    • approval / rejection of batch NFTs in CarbonOffsetBatches contract

Nevertheless, any such attacks which are new discoveries may be eligible for discretionary payouts if they help harden future bridging when that resumes.

  • Best practice critiques
Default Out of Scope and rules

Smart Contract specific

  • Incorrect data supplied by third party oracles
    • Not to exclude oracle manipulation/flash loan attacks
  • Impacts requiring basic economic and governance attacks (e.g. 51% attack)
  • Lack of liquidity impacts
  • Impacts from Sybil attacks
  • Impacts involving centralization risks

All categories

  • Impacts requiring attacks that the reporter has already exploited themselves, leading to damage
  • Impacts caused by attacks requiring access to leaked keys/credentials
  • Impacts caused by attacks requiring access to privileged addresses (including, but not limited to: governance and strategist contracts) without additional modifications to the privileges attributed
  • Impacts relying on attacks involving the depegging of an external stablecoin where the attacker does not directly cause the depegging due to a bug in code
  • Mentions of secrets, access tokens, API keys, private keys, etc. in Github will be considered out of scope without proof that they are in-use in production
  • Best practice recommendations
  • Feature requests
  • Impacts on test files and configuration files unless stated otherwise in the bug bounty program
  • Impacts requiring phishing or other social engineering attacks against project's employees and/or customers
Severity
Min. - Max.
Critical
$50k -$200k
High
$40k
Medium
$7.5k
Total Assets in Scope
39
Total Impacts in Scope
18