Vulnerability in F5 Big-Ip
CVE-2022-26071
On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, a flaw in the way reply ICMP packets are limited in the Traffic Management Microkernel (TMM) allows an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
EPSS: 0.010 (60.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- F5 Big-ip — versions 12.1.x, 11.6.x, 17.0.0
- F5 Big-ip_access_policy_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_advanced_firewall_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_analytics — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_application_acceleration_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_application_security_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_domain_name_system — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_fraud_protection_service — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_global_traffic_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_link_controller — versions 11.6.1, 11.6.2, 11.6.3
Weakness classification (CWE)
References
- f5sirt@f5.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26071?
- CVE-2022-26071 is a high-severity vulnerability in F5 Big-Ip, classified under Use of Insufficiently Random Values. CVSS score: 7.4/10. Published 2022-05-05.
- How severe is CVE-2022-26071?
- High severity. CVSS v3 base score is 7.4 out of 10.