Vulnerability Details : CVE-2018-5509
On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, TMM will crash and take the configured failover action, potentially causing a denial of service. The configuration which exposes this issue is not common and in general does not work when enabled in previous versions of BIG-IP. Starting in 12.1.0, BIG-IP will crash if the configuration which exposes this issue is enabled and the virtual server receives non TCP traffic. With the fix of this issue, additional configuration validation logic has been added to prevent this configuration from being applied to a virtual server. There is only data plane exposure to this issue with a non-standard configuration. There is no control plane exposure.
Vulnerability category: Input validationDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-5509
Probability of exploitation activity in the next 30 days: 0.24%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 62 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-5509
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-5509
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-5509
-
http://www.securityfocus.com/bid/103504
Multiple F5 BIG-IP Products CVE-2018-5509 Remote Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://www.securitytracker.com/id/1040562
F5 BIG-IP Unspecified Flaw in Traffic Management Operating System (TMOS) Lets Remote Users Deny Service - SecurityTrackerThird Party Advisory;VDB Entry
-
https://support.f5.com/csp/article/K49440608
Vendor Advisory
Products affected by CVE-2018-5509
- cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 13.0.0 and before (<) 13.1.0.4cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 12.1.0 and before (<) 12.3.1.2cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Acceleration ManagerVersions from including (>=) 12.1.0 and before (<) 12.1.3.2cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Acceleration ManagerVersions from including (>=) 13.0.0 and before (<) 13.1.0.4cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_websafe:1.0.0:*:*:*:*:*:*:*