CVSS v3
8.8
HIGH
EPSS Score
91.3%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2021-41282 has not been confirmed. The EPSS score is 91.3%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-41282 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).