CVE-2018-4021
HighAn exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request.
Published Dec 3, 2018 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2018-4021 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Pfsense (Netgate).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 72% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
72%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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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_battery_mode POST parameter.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PfsenseNetgate | 2.4.4, >= Netgate pfSense CE 2.4.4-RELEASE | n/a |
Timeline
Publicly disclosed
Dec 3, 2018
Last updated
Nov 21, 2024
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
FAQ
Common Questions.
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request.
Affected: Pfsense (Netgate) versions 2.4.4, >= Netgate pfSense CE 2.4.4-RELEASE. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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