CVE-2018-20334

CRITICAL EXPLOITED

ASUSWRT 3.0.0.4.384.20308 - OS Command Injection via fb_email Parameter

Title source: llm

Exploitation Summary

CVE-2018-20334 has been observed exploited in the wild (reported by VulnCheck KEV).

Description

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. When processing the /start_apply.htm POST data, there is a command injection issue via shell metacharacters in the fb_email parameter. By using this issue, an attacker can control the router and get shell.

References (1)

Core 1

Core References

Exploit, Third Party Advisory x_refsource_misc

https://starlabs.sg/advisories/18-20334/

Scores

CVSS v3 9.8

EPSS 0.0391

EPSS Percentile 88.4%

Attack Vector NETWORK

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

Details

VulnCheck KEV 2024-10-12

CWE

CWE-78

Status published

Products (1)

asus/asuswrt 3.0.0.4.384.20308

Published Mar 20, 2020

Tracked Since Feb 18, 2026