What is the vulnerability ID?

The vulnerability ID is CVE-2023-33237.

What is the severity of CVE-2023-33237?

The severity of CVE-2023-33237 is high with a severity value of 8.8.

What software versions are affected by CVE-2023-33237?

TN-5900 Series firmware version v3.3 and prior are affected by CVE-2023-33237.

Is there a fix available for CVE-2023-33237?

Please refer to the Moxa Security Advisory for remediation steps and firmware updates for CVE-2023-33237.

Vulnerability/
CVE-2023-33237

high

8.8

CWE

287 863

17/8/2023

28/10/2024

CVE-2023-33237: Authentication Bypass Without Administrator Privilege

Q: How does CVE-2023-33237 occur?

CVE-2023-33237 occurs due to inadequate authentication measures implemented in the web API handler of TN-5900 Series firmware version v3.3 and prior.

First published: Thu Aug 17 2023(Updated: )

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.

Credit: psirt@moxa.com psirt@moxa.com

Affected Software	Affected Version	How to fix
Moxa Tn-5900 Firmware	<=3.3
Moxa TN-5900
All of
Moxa Tn-5900 Firmware	<=3.3
Moxa TN-5900

Remedy

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilities

Remedy

Moxa has developed appropriate solution to address the vulnerability. The solution for affected products is shown below: * TN-5900 Series: Please upgrade to firmware v3.4 or higher.

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Reference Links

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilities

Frequently Asked Questions

What is the vulnerability ID?
The vulnerability ID is CVE-2023-33237.
What is the severity of CVE-2023-33237?
The severity of CVE-2023-33237 is high with a severity value of 8.8.
What software versions are affected by CVE-2023-33237?
TN-5900 Series firmware version v3.3 and prior are affected by CVE-2023-33237.
How does CVE-2023-33237 occur?
CVE-2023-33237 occurs due to inadequate authentication measures implemented in the web API handler of TN-5900 Series firmware version v3.3 and prior.
Is there a fix available for CVE-2023-33237?
Please refer to the Moxa Security Advisory for remediation steps and firmware updates for CVE-2023-33237.

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agent/last-modified-date
agent/weakness
agent/description
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agent/software-canonical-lookup
vendor/moxa
canonical/moxa tn-5900 firmware
version/moxa tn-5900 firmware/3.3
canonical/moxa tn-5900

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