F5 Networks BIG-IP : tmsh utility vulnerability (K28003839)

High Nessus Plugin ID 118650

Synopsis

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

Description

A BIG-IP user granted with tmsh access may cause the BIG-IP system to experience denial-of-service (DoS) when the BIG-IP user uses the tmsh utility to run the editcli preference commandand proceeds to savethe changes to another filename repeatedly. This actionutilizes storage space on the /var partition and when performed repeatedly causes the /var partition to befull. (CVE-2018-15322)

Impact

BIG-IP / BIG-IQ / Enterprise Manager / F5 iWorkflow

The BIG-IP system experiences a denial-of-service (DoS) attack until the storage space on the /var partition returns to normal. This vulnerability also applies to a BIG-IP system running in Appliance mode if it is configured to grant a BIG-IP user with TMOS Shell ( tmsh ) access.

Traffix SDC

There is no impact; this F5 product is not affected by this vulnerability.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K28003839.

See Also

https://support.f5.com/csp/#/article/K28003839

Plugin Details

Severity: High

ID: 118650

File Name: f5_bigip_SOL28003839.nasl

Version: 1.1

Type: local

Published: 2018/11/02

Modified: 2018/11/02

Dependencies: 76940

Risk Information

Risk Factor: High

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_global_traffic_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:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip

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

Patch Publication Date: 2018/10/30

Reference Information

CVE: CVE-2018-15322