Pfsense
CVE-2018-4021
HIGH
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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 include: Netgate Pfsense.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
Cross-site request forgery (CSRF) vulnerability in system_firmware_restorefullbackup.php in the WebGUI in pfSense before
A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated attac
Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22
diag_command.php in pfSense 2.4.4-p3 allows CSRF via the txtCommand or txtRecallBuffer field, as demonstrated by executi
pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_ph
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete
pfSense before 2.1.4 allows remote authenticated users to execute arbitrary commands via (1) the hostname value to diag_
pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. Rated
pfSense 2.5.0 allows XSS via the services_wol_edit.php Description field. Rated medium severity (CVSS 6.1), this vulnera
In pfSense 2.4.4-p2 and 2.4.4-p3, if it is possible to trick an authenticated administrator into clicking on a button on
In pfSense 2.4.4-p3, a stored XSS vulnerability occurs when attackers inject a payload into the Name or Description fiel
Same weakness CWE-78 – OS Command Injection
View allSame technique Command Injection
View allShare
External POC / Exploit Code
Leaving vuln.today