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0x

0x is the trusted open source settlement layer for the permissionless global exchange of value.

Polygon
Harmony
Polkadot
Avalanche
Defi
DEX
Solidity
Maximum Bounty
$1,000,000
Live Since
30 July 2024
Last Updated
13 November 2024
  • Triaged by Immunefi

  • PoC required

  • KYC required

Select the category you'd like to explore

Assets in Scope

Target
Type
Smart Contract - 0x Settler
Added on
30 July 2024
Target
Type
Websites and Applications - swap API
Added on
30 July 2024
Target
Type
Websites and Applications - gasless API
Added on
30 July 2024
Target
Type
Websites and Applications - Matcha website
Added on
30 July 2024
Target
Primacy Of Impact
Type
Smart Contract
Added on
30 July 2024

Impacts in Scope

Severity
Critical
Title

Direct theft of any user funds, whether at-rest or in-motion

Severity
Critical
Title

Permanent freezing of funds

Severity
Critical
Title

Execute arbitrary system commands

Severity
Critical
Title

Retrieve sensitive data/files from a running server, such as: /etc/shadow, database passwords, blockchain keys (this does not include non-sensitive environment variables, open source code, or usernames)

Severity
Critical
Title

Taking down the application/website

Severity
Critical
Title

Taking state-modifying authenticated actions (with or without blockchain state interaction) on behalf of other users without any interaction by that user, such as: Changing registration information, Making trades, Withdrawals, etc.

Severity
Critical
Title

Subdomain takeover with already-connected wallet interaction

Severity
Critical
Title

Direct theft of user funds

Severity
Critical
Title

Malicious interactions with an already-connected wallet, such as: Modifying transaction arguments or parameters, Substituting contract addresses, Submitting malicious transactions

Severity
High
Title

Temporary freezing of funds

Severity
High
Title

Injecting/modifying the static content on the target application without JavaScript (persistent), such as: HTML injection without JavaScript, Replacing existing text with arbitrary text, Arbitrary file uploads, etc

Severity
High
Title

Changing sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as: Email, Password of the victim etc.

Out of scope

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
$15k -$1M
High
$10k -$100k
Medium
$1k -$35k
Total Assets in Scope
5
Total Impacts in Scope
21