SB2021010304 - Improper access control in Seal Finance (Seal)
Published: January 3, 2021
Security Bulletin ID
SB2021010304
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2021-3006)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. The breed function in the smart contract implementation for Farm in Seal Finance (Seal), an Ethereum token, lacks access control and thus allows price manipulation.
Note, the vulnerability has been exploited in the wild in December 2020 and January 2021.
Remediation
Install update from vendor's website.