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Security Advisories: GSA_kwCzR0hTQS1xNmhnLTZtOXgtNWc5Y84AA9wr
Evmos vulnerable to exploit of smart contract account and vesting
Summary
This advisory board aims to describe two vulnerabilities found in the Evmos codebase:
- Authorization check on the fundVestingAccount: unauthorized spend of funds.
Details
Authorization check on the fundVestingAccount
With the current implementation, a user can create a vesting account with a 3rd party account (EOA or contract) as funder. Then, this user can create an authorization for the contract.CallerAddress, this is the authorization checked in the code. But the funds are taken from the funder address provided in the message. Consequently, the user can fund a vesting account with a 3rd party account without its permission. The funder address can be any address, so this vulnerability can be used to drain all the accounts in the chain.
Severity
Based on ImmuneFi Severity Classification System the severity was evaluated to Critical since the attack could have lead to direct loss of funds.
Patches
The issue has been patched in versions >=V19.0.0
Permalink: https://github.com/advisories/GHSA-q6hg-6m9x-5g9cJSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1xNmhnLTZtOXgtNWc5Y84AA9wr
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 2 months ago
Updated: 30 days ago
CVSS Score: 8.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Identifiers: GHSA-q6hg-6m9x-5g9c, CVE-2024-39696
References:
- https://github.com/evmos/evmos/security/advisories/GHSA-q6hg-6m9x-5g9c
- https://nvd.nist.gov/vuln/detail/CVE-2024-39696
- https://github.com/evmos/evmos/commit/0a620e176617a835ac697eea494afea09185dfaf
- https://github.com/advisories/GHSA-q6hg-6m9x-5g9c
Blast Radius: 1.0
Affected Packages
go:github.com/evmos/evmos/v18
Dependent packages: 0Dependent repositories: 0
Downloads:
Affected Version Ranges: <= 18.0.1
Fixed in: 19.0.0
All affected versions: 18.0.0
All unaffected versions: