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CVE-2018-4063

8.8 · HIGHActively Exploited

An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3.

Published May 6, 2019CWE-434EPSS 27.06%

Overview

CVE-2018-4063 is a high-severity vulnerability. It was published on May 6, 2019 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refpacketstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.htmlRefwww.securityfocus.com/bid/108147Refics-cert.us-cert.gov/advisories/ICSA-19-122-03Reftalosintelligence.com/vulnerability_reports/TALOS-2018-0748Refpacketstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.htmlRefwww.securityfocus.com/bid/108147Refics-cert.us-cert.gov/advisories/ICSA-19-122-03Reftalosintelligence.com/vulnerability_reports/TALOS-2018-0748CISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063Refwww.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-4063?

CVE-2018-4063 is a high-severity vulnerability. It was published on May 6, 2019 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2018-4063?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-4063?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2018-4063?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-4063 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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