NewStart CGSL CORE 5.05 / MAIN 5.05 : fwupdate Vulnerability (NS-SA-2021-0136)

high Nessus Plugin ID 154548


The remote NewStart CGSL host is affected by a vulnerability.


The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has fwupdate packages installed that are affected by a vulnerability:

- A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-10713)

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


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

See Also

Plugin Details

Severity: High

ID: 154548

File Name: newstart_cgsl_NS-SA-2021-0136_fwupdate.nasl

Version: 1.2

Type: local

Published: 10/27/2021

Updated: 10/27/2021

Risk Information


Risk Factor: High

Score: 7.3


Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

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

CVSS Score Source: CVE-2020-10713


Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_core:fwupdate, p-cpe:/a:zte:cgsl_core:fwupdate-debuginfo, p-cpe:/a:zte:cgsl_core:fwupdate-devel, p-cpe:/a:zte:cgsl_core:fwupdate-efi, p-cpe:/a:zte:cgsl_core:fwupdate-libs, p-cpe:/a:zte:cgsl_main:fwupdate, p-cpe:/a:zte:cgsl_main:fwupdate-debuginfo, p-cpe:/a:zte:cgsl_main:fwupdate-devel, p-cpe:/a:zte:cgsl_main:fwupdate-efi, p-cpe:/a:zte:cgsl_main:fwupdate-libs, cpe:/o:zte:cgsl_core:5, cpe:/o:zte:cgsl_main:5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2021

Vulnerability Publication Date: 7/29/2020

Reference Information

CVE: CVE-2020-10713

IAVA: 2020-A-0349