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High severity · published Aug 17, 2023
CVE-2023-33237
TN-5900 Series firmware version v3.3 and prior is vulnerable to improper-authentication vulnerability
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
TN-5900 Series firmware version v3.3 and prior is vulnerable to improper-authentication vulnerability. This vulnerability arises from inadequate authentication measures implemented in the web API handler, allowing low-privileged APIs to execute restricted actions that only high-privileged APIs are allowed This presents a potential risk of unauthorized exploitation by malicious actors.
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)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Tn-5900 Firmware · Moxa
through 3.3 · source: NVD
Affected product
TF
Tn-5900 Firmware
Moxa
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-33237
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-33237
Patch
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilities
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