NewStart CGSL CORE 5.05 / MAIN 5.05 : unbound Multiple Vulnerabilities (NS-SA-2021-0142)

high Nessus Plugin ID 154518
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Synopsis

The remote NewStart CGSL host is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has unbound packages installed that are affected by multiple vulnerabilities:

- An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound. (CVE-2020-10772)

- 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)

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

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-2021-0142

http://security.gd-linux.com/info/CVE-2020-10772

http://security.gd-linux.com/info/CVE-2020-12662

http://security.gd-linux.com/info/CVE-2020-12663

Plugin Details

Severity: High

ID: 154518

File Name: newstart_cgsl_NS-SA-2021-0142_unbound.nasl

Version: 1.2

Type: local

Published: 10/27/2021

Updated: 10/27/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-12663

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

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: p-cpe:2.3:a:zte:cgsl_core:unbound:*:*:*:*:*:*:*, cpe:2.3:o:zte:cgsl_main:5:*:*:*:*:*:*:*, cpe:2.3:o:zte:cgsl_core:5:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_main:unbound:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_main:unbound-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_main:unbound-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_main:unbound-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_core:unbound-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_core:unbound-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_core:unbound-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_core:unbound-python:*:*:*:*:*:*:*, p-cpe:2.3:a:zte:cgsl_main:unbound-python:*:*:*:*:*:*:*

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: 9/24/2021

Vulnerability Publication Date: 5/19/2020

Reference Information

CVE: CVE-2020-12662, CVE-2020-12663, CVE-2020-10772