CVE-2021-20153

Katalog CVE

CVSS 6.8 · Medium EPSS 0,96%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada trendnet tew-827dru firmware. Skor CVSS 3.1 6.8 (Medium) menurut NVD.

Deskripsi (NVD)

Trendnet AC2600 TEW-827DRU version 2.08B01 contains a symlink vulnerability in the bittorrent functionality. If enabled, the bittorrent functionality is vulnerable to a symlink attack that could lead to remote code execution on the device. If an end user inserts a flash drive with a malicious symlink on it that the bittorrent client can write downloads to, then a user is able to download arbitrary files to any desired location on the devices filesystem, which could lead to remote code execution. Example directories vulnerable to this include "config", "downloads", and "torrents", though it should be noted that "downloads" is the only vector that allows for arbitrary files to be downloaded to arbitrary locations.

Rincian

Terbit di NVD

30 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,96% peluang dieksploitasi; lebih tinggi dari 60,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.tenable.com/security/research/tra-2021-54 advisory pihak ketiga