National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-16055 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 8.8 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://doddsecurity.com/190/command-injection-on-pfsense-firewalls/ Third Party Advisory
https://www.pfsense.org/security/advisories/pfSense-SA-18_08.webgui.asc Mitigation Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
2.4.4


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-16055
NVD Published Date:
09/26/2018
NVD Last Modified:
10/02/2019