SB2022011929 - Denial of service in BIG-IP AFM SYN cookie protection feature
Published: January 19, 2022
Security Bulletin ID
SB2022011929
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2022-23028)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation error when global AFM SYN cookie protection (TCP Half Open flood vector) is activated in the AFM Device Dos or DOS profile. Such configuration causes certain types of TCP connections fail. A remote attacker can send specially crafted traffic to the system and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.