CVE-2018-5504

Description

In some circumstances, the Traffic Management Microkernel (TMM) does not properly handle certain malformed Websockets requests/responses, which allows remote attackers to cause a denial-of-service (DoS) or possible remote code execution on the F5 BIG-IP system running versions 13.0.0 - 13.1.0.3 or 12.1.0 - 12.1.3.1.

8.1

CVSS

Severity: High

CVSS 3.0 •

CVSS 2.0 •

EPSS 3.25% Top 15%

Vendor Advisory f5.com

Affected: F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe)

References

Link	Tags
http://www.securitytracker.com/id/1040558	vdb entry third party advisory
https://support.f5.com/csp/article/K11718033	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5504?: CVE-2018-5504 has been scored as a high severity vulnerability.
How to fix CVE-2018-5504?: To fix CVE-2018-5504, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5504 being actively exploited in the wild?: It is possible that CVE-2018-5504 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5504?: CVE-2018-5504 affects F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe).

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