CVE Vulnerability

CVE-2021-41282

diag_routes.php in pfSense 2.5.2 allows sed data injection. Authenticated users are intended to be able to view data about the routes set in the firewall. The data is retrieved by executing the netstat utility, and then its output is parsed via the sed utility. Although the common protection mechanisms against command injection (i.e., the usage of the escapeshellarg function for the arguments) are used, it is still possible to inject sed-specific code and write an arbitrary file in an arbitrary location.

9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.shielder.it/advisories/pfsense-remote-command-execution/ Exploit Third Party Advisory
https://docs.netgate.com/pfsense/en/latest/releases/22-01_2-6-0.html Release Notes Third Party Advisory
https://www.shielder.it/advisories/ Third Party Advisory
http://packetstormsecurity.com/files/166208/pfSense-2.5.2-Shell-Upload.html Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:pfsense:pfsense:2.5.2:*:*:*:*:*:*:*
Information

Published : 2022-03-01 11:15

Updated : 2022-07-12 05:42

NVD link : CVE-2021-41282

Mitre link : CVE-2021-41282

Products Affected
No products.
CWE
CWE-77