CVE-2018-25143
Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service
- State
- Published
- Severity
- 8.7 High
- Published
- Dec 24, 2025
- Updated
- Dec 24, 2025
- Reserved
- Dec 24, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor JailbreakMicrohard Systems |
|
References
- ExploitDB-45041exploit
- Microhard Systems Product Homepageproduct
- Zero Science Lab Disclosure (ZSL-2018-5486)third-party-advisory
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