PT-2018-16998 · F5 · F5 Big-Ip

Published 2018-03-22 · Updated 2019-10-03 · CVE-2018-5504

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 12.1.0 through 12.1.3.1 F5 BIG-IP versions 13.0.0 through 13.1.0.3

Description The issue arises from the Traffic Management Microkernel (TMM) not properly handling certain malformed Websockets requests/responses. This can be exploited by remote attackers to cause a denial-of-service (DoS) or possibly achieve remote code execution on the system.

Recommendations For F5 BIG-IP versions 12.1.0 through 12.1.3.1, update to a version outside of this range to resolve the issue. For F5 BIG-IP versions 13.0.0 through 13.1.0.3, update to a version outside of this range to resolve the issue. As a temporary workaround, consider restricting access to Websockets to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2018-5504

Affected Products

F5 Big-Ip

References · 4

• https://support.f5.com/csp/article/K11718033 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-5504 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-5504 · Security Note
• http://securitytracker.com/id/1040558 · Note