Command Injection in Moxa products - CVE-2021-39279
Published: September 7, 2021
Vulnerability identifier: #VU56357
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-39279
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation. A remote authenticated attacker can send a specially crafted HTTP GET request to the "/forms/web_importTFTP" CGI program and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
TAP-323-EU-CT-T
TAP-323-US-CT-T
TAP-323-JP-CT-T
WAC-2004
OnCell G3470A-LTE-EU
OnCell G3470A-LTE-EU-T
WAC-1001
WAC-1001-T
WDR-3124A-EU
WDR-3124A-EU-T
WDR-3124A-US
WDR-3124A-US-T
TAP-323-US-CT-T
TAP-323-JP-CT-T
WAC-2004
OnCell G3470A-LTE-EU
OnCell G3470A-LTE-EU-T
WAC-1001
WAC-1001-T
WDR-3124A-EU
WDR-3124A-EU-T
WDR-3124A-US
WDR-3124A-US-T
How to mitigate CVE-2021-39279
Install updates from vendor's website.
TAP-323-EU-CT-T - update to 1.8.1
TAP-323-US-CT-T - update to 1.8.1
TAP-323-JP-CT-T - update to 1.8.1
OnCell G3470A-LTE-EU - update to 1.7.4
OnCell G3470A-LTE-EU-T - update to 1.7.4
WAC-1001 - update to 2.1.5
WAC-1001-T - update to 2.1.5
TAP-323-US-CT-T - update to 1.8.1
TAP-323-JP-CT-T - update to 1.8.1
OnCell G3470A-LTE-EU - update to 1.7.4
OnCell G3470A-LTE-EU-T - update to 1.7.4
WAC-1001 - update to 2.1.5
WAC-1001-T - update to 2.1.5