CVE-2021-27710 Information

Description

Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102 and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands by sending a modified HTTP request. This occurs because the function executes glibc’s system function with untrusted input. In the function \ip\ parameter is directly passed to the attacker allowing them to control the \ip\ field to attack the OS.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://hackmd.io/KjXzQdjDRjOuRjoZZXQo_A https://hackmd.io/Hy3oVgtcQiuqAtv9FdylHw

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8