CVE-2018-11421
9.8 · CRITICALOverview
CVE-2018-11421 is a critical-severity vulnerability affecting moxa oncell_g3150-hspa_firmware. It was published on July 3, 2019 and has a CVSS 3.0 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Moxa OnCell G3100-HSPA Series version 1.6 Build 17100315 and prior use a proprietary monitoring protocol that does not provide confidentiality, integrity, and authenticity security controls. All information is sent in plain text, and can be intercepted and modified. The protocol is vulnerable to remote unauthenticated disclosure of sensitive information, including the administrator's password. Under certain conditions, it's also possible to retrieve additional information, such as content of HTTP requests to the device, or the previously used password, due to memory leakages.
Remediation
Check the references section for vendor advisories and patches from moxa. Update oncell_g3150-hspa_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| moxa | oncell_g3150-hspa_firmware | 0 | Affected |
| moxa | oncell_g3150-hspa-t_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2018-11421?
CVE-2018-11421 is a critical-severity vulnerability affecting moxa oncell_g3150-hspa_firmware. It was published on July 3, 2019 and has a CVSS 3.0 base score of 9.8 (CRITICAL).
How severe is CVE-2018-11421?
This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-11421?
Check the references section for vendor advisories and patches from moxa. Update oncell_g3150-hspa_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-11421?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-11421 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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