CVE Vulnerability

CVE-2018-16055

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.

9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

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

Configuration 1

cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
Information

Published : 2018-09-26 10:29

Updated : 2019-10-03 12:03

NVD link : CVE-2018-16055

Mitre link : CVE-2018-16055

Products Affected
No products.
CWE
CWE-78