Vulnerability identifier: #VU36341
Vulnerability risk: Medium
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-78
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
pfsense
Server applications /
IDS/IPS systems, Firewalls and proxy servers
Vendor: Rubicon Communications
Description
The vulnerability allows a remote privileged user to execute arbitrary code.
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.
Mitigation
Install update from vendor's website.
Vulnerable software versions
pfsense: 2.4.4
External links
http://talosintelligence.com/vulnerability_reports/TALOS-2018-0690
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.