CVE-2020-27867

Katalog CVE

CVSS 6.8 · Medium EPSS 2,2%

Kerentanan Improper Neutralization of Special Elements used in a Command ('Command Injection') pada netgear ac2100 firmware, netgear ac2400 firmware +17 lainnya. Skor CVSS 3.1 6.8 (Medium) menurut NVD.

Deskripsi (NVD)

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. When parsing the funjsq_access_token parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11653.

Rincian

Terbit di NVD

12 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

EPSS (30 hari)

2,2% peluang dieksploitasi; lebih tinggi dari 82,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers advisory vendor
• https://www.zerodayinitiative.com/advisories/ZDI-20-1423/ advisory pihak ketiga · vdb entry