CVE-2018-4019 — HIGH (7.2) — White Hats Nepal

Vulnerability Description

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the ability to execute arbitrary commands on the system. An attacker needs to be able to send authenticated POST requests to the administration web interface. Command injection is possible in the `powerd_normal_mode` parameter.

CVSS Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Netgate	Pfsense	2.4.4

Related Weaknesses (CWE)

CWE-78

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0690ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0690ExploitThird Party Advisory

FAQ

What is CVE-2018-4019?

CVE-2018-4019 is a vulnerability with a CVSS score of 7.2 (HIGH). An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the abilit...

How severe is CVE-2018-4019?

CVE-2018-4019 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-4019?

Check the references section above for vendor advisories and patch information. Affected products include: Netgate Pfsense.