What is CVE-2018-20334?

CVE-2018-20334 is a critical-severity vulnerability in Asus Asuswrt, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-03-20.

How severe is CVE-2018-20334?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-20334 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Asus Asuswrt

CVE-2018-20334

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 r…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.038 (88.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Asus Asuswrt — versions 3.0.0.4.384.20308
Asus Gt-ac2900
Asus Gt-ac5300
Asus Gt-ax11000
Asus Rt-ac1200
Asus Rt-ac1200g
Asus Rt-ac1200ge
Asus Rt-ac1200_v2
Asus Rt-ac1750
Asus Rt-ac1750_b1

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-20334?: CVE-2018-20334 is a critical-severity vulnerability in Asus Asuswrt, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-03-20.
How severe is CVE-2018-20334?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-20334 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.