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CVE-2018-25143— Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service

Quick assessment

Affected
Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microhard Systems IPn4G是加拿大Microhard公司的一个蜂窝无线网关。 Microhard Systems IPn4G 1.1.0版本存在安全漏洞，该漏洞源于可通过自定义ping命令逃逸受限shell，可能导致执行具有root权限的命令。

CVSS 8.8 · High EPSS 0.60% · P47
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I. Basic Information for CVE-2018-25143

Vulnerability Information
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Vulnerability Title
Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Microhard Systems IPn4G 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microhard Systems IPn4G是加拿大Microhard公司的一个蜂窝无线网关。 Microhard Systems IPn4G 1.1.0版本存在安全漏洞，该漏洞源于可通过自定义ping命令逃逸受限shell，可能导致执行具有root权限的命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak IPn4G 1.1.0 build 1098 -

II. Public POCs for CVE-2018-25143

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III. Intelligence Information for CVE-2018-25143

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Vendor Advisories for CVE-2018-25143 (1)

Exploits & Public PoCs for CVE-2018-25143 (1)

Other References for CVE-2018-25143 (1)

Same Patch Batch · Microhard Systems · 2025-12-24 · 7 CVEs total

CVE-2018-25148 8.8 HIGH Microhard Systems IPn4G 1.1.0 Remote Code Execution via Admin Interface
CVE-2018-25144 8.4 HIGH Microhard Systems IPn4G 1.1.0 Arbitrary File Access via Undocumented System Editor
CVE-2018-25146 8.1 HIGH Microhard Systems IPn4G 1.1.0 Service Control Denial of Service
CVE-2018-25147 7.5 HIGH Microhard Systems IPn4G 1.1.0 Default Credentials Authentication Bypass
CVE-2018-25149 6.5 MEDIUM Microhard Systems IPn4G 1.1.0 Cross-Site Request Forgery via Web Interface
CVE-2018-25145 6.5 MEDIUM Microhard Systems IPn4G 1.1.0 Configuration Disclosure via Authenticated Download

IV. Related Vulnerabilities

Same vendor: Microhard Systems
Same weakness: CWE-78

V. Comments for CVE-2018-25143

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