F5 Networks BIG-IP : BIG-IP DNS Cache vulnerability (K48224824)

medium Nessus Plugin ID 118670

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Synopsis

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

Description

On F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.0-11.6.3.1, or 11.2.1-11.5.6 a domain name cached within the DNS Cache of TMM may continue to be resolved by the cache even after the parent server revokes the record, if the DNS Cache is receiving a stream of requests for the cached name. (CVE-2018-5532)

Impact

The BIG-IP system may continue to serve responses from the DNS Cachefor as long as the system receives requests for the cached name, even though the authoritative nameserver removed the name.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K48224824.

Plugin Details

Severity: Medium

ID: 118670

File Name: f5_bigip_SOL48224824.nasl

Version: 1.6

Type: local

Family: F5 Networks Local Security Checks

Published: 11/2/2018

Updated: 11/2/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2018-5532

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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_domain_name_system, 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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/18/2018

Vulnerability Publication Date: 7/19/2018

Reference Information

CVE: CVE-2018-5532

Detections

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