NewStart CGSL MAIN 6.01 : unbound Multiple Vulnerabilities (NS-SA-2020-0037)

high Nessus Plugin ID 138770
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote machine is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version MAIN 6.01, has unbound packages installed that are affected by multiple vulnerabilities:

- Unbound 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with `--enable-ipsecmod` support, and ipsecmod is enabled and used in the configuration. (CVE-2019-18934)

- Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
(CVE-2020-12663)

- Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an NXNSAttack issue. This is triggered by random subdomains in the NSDNAME in NS records. (CVE-2020-12662)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL unbound packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

See Also

http://security.gd-linux.com/notice/NS-SA-2020-0037

Plugin Details

Severity: High

ID: 138770

File Name: newstart_cgsl_NS-SA-2020-0037_unbound.nasl

Version: 1.4

Type: local

Published: 7/21/2020

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-18934

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2020

Vulnerability Publication Date: 11/19/2019

Reference Information

CVE: CVE-2019-18934, CVE-2020-12662, CVE-2020-12663