CVE-2018-25143 - CVE House
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Status published High CVE-2018-25143

Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service

Vulnerability Description

Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • LiquidWorm as Gjoko Krstic of Zero Science Lab

Affected Vendor

Microhard Systems

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Affected Software

Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak
Vulnerable Versions:
IPn4G 1.1.0 build 1098

Timeline

Official Publish: December 24th, 2025
Last Modified: December 24th, 2025
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)