CVE-2018-16055
8.8 · HIGHOverview
CVE-2018-16055 is a high-severity vulnerability affecting netgate pfsense. It was published on September 26, 2018 and has a CVSS 3.0 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.0 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 authenticated command injection vulnerability exists in status_interfaces.php via dhcp_relinquish_lease() in pfSense before 2.4.4 due to its passing user input from the $_POST parameters "ifdescr" and "ipv" to a shell without escaping the contents of the variables. This allows an authenticated WebGUI user with privileges for the affected page to execute commands in the context of the root user when submitting a request to relinquish a DHCP lease for an interface which is configured to obtain its address via DHCP.
Remediation
Check the references section for vendor advisories and patches from netgate. Update pfsense 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 |
|---|---|---|---|
| netgate | pfsense | >= 0, < 2.4.4 | Affected |
Frequently Asked Questions
What is CVE-2018-16055?
CVE-2018-16055 is a high-severity vulnerability affecting netgate pfsense. It was published on September 26, 2018 and has a CVSS 3.0 base score of 8.8 (HIGH).
How severe is CVE-2018-16055?
This vulnerability has a CVSS 3.0 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-2018-16055?
Check the references section for vendor advisories and patches from netgate. Update pfsense 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-2018-16055?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-16055 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.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2018
View all →IBM API Connect 5.0.0.0, 5.0.8.4, 2018.1 and 2018.3.6 is vulnerable to CSV injection via the develop
Craft CMS 2.6.3000 allows remote attackers to execute arbitrary PHP code by using the "Assets->Uploa
In opencv/modules/imgcodecs/src/utils.cpp, functions FillUniColor and FillUniGray do not check the i
freedesktop.org libpoppler 0.60.1 fails to validate boundaries in TextPool::addWord, leading to over
Gnome gdk-pixbuf 2.36.8 and older is vulnerable to several integer overflow in the gif_get_lzw funct
In Octopus Deploy versions 3.2.11 - 4.1.5 (fixed in 4.1.6), an authenticated user with ProcessEdit p
Commsy version 9.0.0 is vulnerable to XXE attacks in the configuration import functionality resultin
phpMyAdmin versions 4.7.x (prior to 4.7.6.1/4.7.7) are vulnerable to a CSRF weakness. By deceiving a
pfSense versions 2.4.1 and lower are vulnerable to clickjacking attacks in the CSRF error page resul
IBM Tivoli Key Lifecycle Manager 2.6 and 2.7 is vulnerable to cross-site request forgery which could
Inteno iopsys 2.0-3.14 and 4.0 devices allow remote authenticated users to execute arbitrary OS comm
Xplico before 1.2.1 allows remote authenticated users to execute arbitrary commands via shell metach