SB2021080313 - Buffer overflow in FortiOS firmware verification
Published: August 3, 2021
Security Bulletin ID
SB2021080313
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2021-24018)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the firmware verification routine of FortiOS. A remote attacker on the local network can execute arbitrary code via a specifically crafted firmware image.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.