CWE
78 77
Advisory Published
Updated

CVE-2018-20334: OS Command Injection

First published: Fri Mar 20 2020(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Asus asuswrt=3.0.0.4.384.20308
ASUS ROG Rapture GT-AC2900
ASUS ROG Rapture GT-AC5300
ASUS GT-AX11000 Firmware
ASUS RT-AC1200G
ASUS RT-AC1200 v2
ASUS RT-AC1200G Firmware
ASUS RT-AC1200GE
ASUS RT-AC1750 firmware
ASUS RT-AC1750
ASUS RT-AC1900P Firmware
ASUS RT-AC3100
ASUS RT-AC3200 Firmware
ASUS RT-AC51U firmware
ASUS RT-AC5300 firmware
ASUS RT-AC55U
ASUS RT-AC56R Firmware
ASUS RT-AC56S
ASUS RT-AC56U Firmware
ASUS rt-ac66r firmware
ASUS RT-AC66U firmware
ASUS RT-AC66U B1
ASUS RT-AC66U firmware
ASUS RT-AC68P Firmware
ASUS RT-AC68R
ASUS RT-AC86U firmware
ASUS RT-AC87U
ASUS RT-AC88U Firmware
ASUS RT-ACRH12
ASUS RT-ACRH13 firmware
ASUS RT-AX3000
ASUS RT-AX56U firmware
ASUS RT-AX58U Firmware
ASUS RT-AX88U Firmware
ASUS RT-AX92U Firmware
ASUS RT-G32
Asus RT-N10+ D1 firmware
ASUS RT-N10E Firmware
ASUS RT-N14U firmware
ASUS RT-N16 firmware
ASUS RT-N19 Firmware
ASUS RT-N56R
ASUS RT-N56U firmware
ASUS RT-N600 firmware
ASUS RT-N65U Firmware
ASUS RT-N66R
ASUS RT-N66U Firmware

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Frequently Asked Questions

  • What is CVE-2018-20334?

    CVE-2018-20334 is an issue discovered in ASUSWRT 3.0.0.4.384.20308 that allows command injection via shell metacharacters.

  • How severe is CVE-2018-20334?

    CVE-2018-20334 has a severity rating of 9.8 (critical).

  • Which software versions are affected by CVE-2018-20334?

    The ASUSWRT version 3.0.0.4.384.20308 is affected by CVE-2018-20334.

  • How can an attacker exploit CVE-2018-20334?

    An attacker can exploit CVE-2018-20334 by using shell metacharacters in the fb_email parameter to execute arbitrary commands and gain control of the router and obtain shell access.

  • Where can I find more information about CVE-2018-20334?

    You can find more information about CVE-2018-20334 at the following link: https://starlabs.sg/advisories/18-20334/

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