CVE-2021-41282

Katalog CVE

CVSS 8.8 · High EPSS 87,1%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada pfsense. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

1 Maret 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

EPSS (30 hari)

87,1% peluang dieksploitasi; lebih tinggi dari 99,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://packetstormsecurity.com/files/166208/pfSense-2.5.2-Shell-Upload.html exploit · advisory pihak ketiga · vdb entry
• https://docs.netgate.com/pfsense/en/latest/releases/22-01_2-6-0.html release notes · advisory pihak ketiga
• https://www.shielder.it/advisories/ advisory pihak ketiga
• https://www.shielder.it/advisories/pfsense-remote-command-execution/ exploit · advisory pihak ketiga