CVE-2019-6677: High severity f5 access policy manager vulnerability
Published Dec 23, 2019
·Updated
On BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.5, under certain conditions when using custom TCP congestion control settings in a TCP profile, TMM stops processing traffic when processed by an iRule.
Affected Software
55 affected components
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.5
F5 BIG-IP Access Policy Manager>=13.1.0<13.1.3.2
F5 BIG-IP Access Policy Manager>=14.0.0<14.0.1.1
F5 BIG-IP Access Policy Manager>=14.1.0<14.1.2.1
F5 BIG-IP Access Policy Manager>=15.0.0<15.0.1.1
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.5
F5 BIG-IP Advanced Firewall Manager>=13.1.0<13.1.3.2
F5 BIG-IP Advanced Firewall Manager>=14.0.0<14.0.1.1
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.2.1
F5 BIG-IP Advanced Firewall Manager>=15.0.0<15.0.1.1
F5 BIG-IP Analytics>=12.1.0<=12.1.5
F5 BIG-IP Analytics>=13.1.0<13.1.3.2
F5 BIG-IP Analytics>=14.0.0<14.0.1.1
F5 BIG-IP Analytics>=14.1.0<14.1.2.1
F5 BIG-IP Analytics>=15.0.0<15.0.1.1
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.5
F5 Big-ip Application Acceleration Manager>=13.1.0<13.1.3.2
F5 Big-ip Application Acceleration Manager>=14.0.0<14.0.1.1
F5 Big-ip Application Acceleration Manager>=14.1.0<14.1.2.1
F5 Big-ip Application Acceleration Manager>=15.0.0<15.0.1.1
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.5
F5 BIG-IP Application Security Manager>=13.1.0<13.1.3.2
F5 BIG-IP Application Security Manager>=14.0.0<14.0.1.1
F5 BIG-IP Application Security Manager>=14.1.0<14.1.2.1
F5 BIG-IP Application Security Manager>=15.0.0<15.0.1.1
F5 Big-ip Domain Name System>=12.1.0<=12.1.5
F5 Big-ip Domain Name System>=13.1.0<13.1.3.2
F5 Big-ip Domain Name System>=14.0.0<14.0.1.1
F5 Big-ip Domain Name System>=14.1.0<14.1.2.1
F5 Big-ip Domain Name System>=15.0.0<15.0.1.1
F5 Big-ip Fraud Protection Service>=12.1.0<=12.1.5
F5 Big-ip Fraud Protection Service>=13.1.0<13.1.3.2
F5 Big-ip Fraud Protection Service>=14.0.0<14.0.1.1
F5 Big-ip Fraud Protection Service>=14.1.0<14.1.2.1
F5 Big-ip Fraud Protection Service>=15.0.0<15.0.1.1
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.5
F5 Big-ip Global Traffic Manager>=13.1.0<13.1.3.2
F5 Big-ip Global Traffic Manager>=14.0.0<14.0.1.1
F5 Big-ip Global Traffic Manager>=14.1.0<14.1.2.1
F5 Big-ip Global Traffic Manager>=15.0.0<15.0.1.1
F5 Big-ip Link Controller>=12.1.0<=12.1.5
F5 Big-ip Link Controller>=13.1.0<13.1.3.2
F5 Big-ip Link Controller>=14.0.0<14.0.1.1
F5 Big-ip Link Controller>=14.1.0<14.1.2.1
F5 Big-ip Link Controller>=15.0.0<15.0.1.1
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.5
F5 Big-ip Local Traffic Manager>=13.1.0<13.1.3.2
F5 Big-ip Local Traffic Manager>=14.0.0<14.0.1.1
F5 Big-ip Local Traffic Manager>=14.1.0<14.1.2.1
F5 Big-ip Local Traffic Manager>=15.0.0<15.0.1.1
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.5
F5 Big-ip Policy Enforcement Manager>=13.1.0<13.1.3.2
F5 Big-ip Policy Enforcement Manager>=14.0.0<14.0.1.1
F5 Big-ip Policy Enforcement Manager>=14.1.0<14.1.2.1
F5 Big-ip Policy Enforcement Manager>=15.0.0<15.0.1.1
Event History
Dec 23, 2019
CVE Published
via MITRE·04:50 PM
Data Sourced
via MITRE·04:50 PM
DescriptionWeakness
Frequently Asked Questions
1
What is the severity of CVE-2019-6677?
CVE-2019-6677 has been classified with a high severity due to its potential impact on traffic processing.
2
How do I fix CVE-2019-6677?
To resolve CVE-2019-6677, upgrade your BIG-IP versions to those indicated in the vendor's advisory.
3
Which BIG-IP versions are affected by CVE-2019-6677?
CVE-2019-6677 affects BIG-IP versions from 12.1.0 to 15.0.1 under specific conditions.
4
What are the implications of CVE-2019-6677 for network security?
CVE-2019-6677 can lead to TMM stopping traffic processing, adversely affecting application availability.
5
Is there a workaround for CVE-2019-6677 pending a fix?
Currently, the recommended action is to update to secure versions as no formal workaround has been provided.