High severity · published Sep 7, 2021
CVE-2021-39279
Certain MOXA devices allow Authenticated Command Injection via /forms/web_importTFTP
8.8
CVSS
4.6%
EPSS
No
On KEV
Description
Certain MOXA devices allow Authenticated Command Injection via /forms/web_importTFTP. This affects WAC-2004 1.7, WAC-1001 2.1, WAC-1001-T 2.1, OnCell G3470A-LTE-EU 1.7, OnCell G3470A-LTE-EU-T 1.7, TAP-323-EU-CT-T 1.3, TAP-323-US-CT-T 1.3, TAP-323-JP-CT-T 1.3, WDR-3124A-EU 2.3, WDR-3124A-EU-T 2.3, WDR-3124A-US 2.3, and WDR-3124A-US-T 2.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.6% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OG
Oncell G3470a-lte-eu Firmware · Moxa
1.7 · source: NVD
OG
Oncell G3470a-lte-eu-t Firmware · Moxa
1.7 · source: NVD
TF
Tap-323-eu-ct-t Firmware · Moxa
1.3 · source: NVD
TF
Tap-323-jp-ct-t Firmware · Moxa
1.3 · source: NVD
TF
Tap-323-us-ct-t Firmware · Moxa
1.3 · source: NVD
WF
Wac-1001 Firmware · Moxa
2.1 · source: NVD
WF
Wac-1001-t Firmware · Moxa
2.1 · source: NVD
WF
Wac-2004 Firmware · Moxa
1.7 · source: NVD
WF
Wdr-3124a-eu Firmware · Moxa
2.3 · source: NVD
WF
Wdr-3124a-eu-t Firmware · Moxa
2.3 · source: NVD
WF
Wdr-3124a-us Firmware · Moxa
2.3 · source: NVD
WF
Wdr-3124a-us-t Firmware · Moxa
2.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39279
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39279
Vendor Advisory
https://www.moxa.com
Exploit
https://packetstormsecurity.com/files/164014
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8.2
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