CVE-2021-20133

Katalog CVE

CVSS 6.1 · Medium EPSS 2,1%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada dlink dir-2640-us firmware. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 are affected by an absolute path traversal vulnerability that allows a remote, authenticated attacker to set the "message of the day" banner to any file on the system, allowing them to read all or some of the contents of those files. Such sensitive information as hashed credentials, hardcoded plaintext passwords for other services, configuration files, and private keys can be disclosed in this fashion. Improper handling of filenames that identify virtual resources, such as "/dev/urandom" allows an attacker to effect a denial of service attack against the command line interfaces of the Quagga services (zebra and ripd).

Rincian

Terbit di NVD

30 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

2,1% peluang dieksploitasi; lebih tinggi dari 80,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.tenable.com/security/research/tra-2021-44 exploit · advisory pihak ketiga