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NewStart CGSL MAIN 6.06 (SP) : openssh Vulnerability (NS-SA-2026-0002)

critical Nessus Plugin ID 299705

Synopsis

The remote NewStart CGSL host is affected by a vulnerability.

Description

The remote NewStart CGSL host, running version MAIN 6.06 (SP), has openssh packages installed that are affected by a vulnerability:

 - A race condition in sshd affecting versions between 8.5p1 and 9.7p1 (inclusive) may allow arbitrary code execution with root privileges. Successful exploitation has been demonstrated on 32-bit Linux/glibc systems with ASLR. According to OpenSSH, the attack has been tested under lab conditions and requires on average 6-8 hours of continuous connections up to the maximum the server will accept. Exploitation on 64-bit systems is believed to be possible but has not been demonstrated at this time. (CVE-2024-6387)

 - A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period. (CVE-2024-6387)

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

Solution

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

See Also

https://security.gd-linux.com/notice/NS-SA-2026-0002

https://security.gd-linux.com/info/CVE-2024-6387

Plugin Details

Severity: Critical

ID: 299705

File Name: newstart_cgsl_NS-SA-2026-0002_openssh.nasl

Version: 1.1

Type: local

Published: 2/20/2026

Updated: 2/20/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.0

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2024-6387

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 8.2

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_main:openssh, p-cpe:/a:zte:cgsl_main:openssh-clients, p-cpe:/a:zte:cgsl_main:openssh-server, cpe:/o:zte:cgsl_main:6

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/20/2026

Vulnerability Publication Date: 6/26/2024

Reference Information

CVE: CVE-2024-6387

IAVA: 2024-A-0375-S