Critical severity · published Mar 20, 2020
CVE-2018-20334
An issue was discovered in ASUSWRT 3.0.0.4.384.20308
9.8
CVSS
3.8%
EPSS
No
On 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.8% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asuswrt · Asus
3.0.0.4.384.20308 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20334
Exploit
https://starlabs.sg/advisories/18-20334/
More from Asuswrt
9.8
CVE-2022-26376
A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New Gen prior to 386.7
9.8
CVE-2018-6000
An issue was discovered in AsusWRT before 3.0.0.4.384_10007
9.8
CVE-2018-5999
An issue was discovered in AsusWRT before 3.0.0.4.384_10007
9.6
CVE-2017-15655
Multiple buffer overflow vulnerabilities exist in the HTTPd server in Asus asuswrt version <=3.0.0.4.376.X
8.8
CVE-2017-15656
Password are stored in plaintext in nvram in the HTTPd server in all current versions (<= 3.0.0.4.380.7743) of Asus asuswrt