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CVE-2018-16055

N/A
Published: September 26, 2018 at 10:00 PM UTC
Updated: June 17, 2026 at 01:43 AM UTC
1 product affected across 1 vendorpfSense

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Severity
N/A
Exploit prediction
EPSS 11%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

pfSense· Netgate
95%
v < 2.4.4
Affected range stops below 2.4.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://doddsecurity.com/190/command-injection-on-pfsense-firewalls/
x_refsource_CONFIRMMitigationVendor Advisory
Source: [email protected]
https://www.pfsense.org/security/advisories/pfSense-SA-18_08.webgui.asc

CVSS

9HIGH[email protected]
Confidentiality
COMPLETE
Integrity
COMPLETE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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