F5 Networks BIG-IP : BIG-IP HTTP/2 vulnerability (K81557381)

high Nessus Plugin ID 132576

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

When the BIG-IP system is configured in HTTP/2 full proxy mode, specifically crafted requests may cause a disruption of service provided by the Traffic Management Microkernel (TMM). (CVE-2019-6673)

Impact

An attacker may be able to use a specifically crafted request to cause a disruption of service. The data plane is impacted and exposed only when a virtual server is configured with an associated HTTP profile, HTTP/2 client and server profile, and the HTTP MRF Router option is enabled (HTTP/2 full proxy mode).

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K81557381.

See Also

https://my.f5.com/manage/s/article/K81557381

Plugin Details

Severity: High

ID: 132576

File Name: f5_bigip_SOL81557381.nasl

Version: 1.3

Type: local

Published: 12/31/2019

Updated: 11/3/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2019-6673

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Settings/ParanoidReport, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Ease: No known exploits are available

Patch Publication Date: 11/26/2019

Vulnerability Publication Date: 11/27/2019

Reference Information

CVE: CVE-2019-6673