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F5 Networks BIG-IP : F5 Path MTU Discovery vulnerability (K22843911)

low Nessus Plugin ID 87787

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Synopsis

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

Description

BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, Link Controller, and PEM 12.0.0 before HF1, when the TCP profile for a virtual server is configured with Congestion Metrics Cache enabled, allow remote attackers to cause a denial of service (Traffic Management Microkernel (TMM) restart) via crafted ICMP packets, related to Path MTU (PMTU) discovery.(CVE-2015-7759)

Impact

A remote attacker may be able to cause the Traffic Management Microkernel (TMM) to restart using maliciously constructed ICMP packets.

Virtual servers using a TCP profile configured with Congestion Metrics Cache enabled are affected by this vulnerability. Congestion Metrics Cache is enabled by default for TCP profiles.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K22843911.

See Also

https://support.f5.com/csp/article/K22843911

Plugin Details

Severity: Low

ID: 87787

File Name: f5_bigip_SOL22843911.nasl

Version: 2.12

Type: local

Published: 1/8/2016

Updated: 5/9/2019

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

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 v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

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_application_visibility_and_reporting, 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: 1/7/2016

Vulnerability Publication Date: 1/12/2016

Reference Information

CVE: CVE-2015-7759