Authentication Bypass Without Administrator Privilege
CVE-2023-33237

8.8HIGH

Key Information:

Vendor

Moxa
Status
Tn-5900 Series
Vendor
CVE Published:
17 August 2023

What is CVE-2023-33237?

The Moxa TN-5900 Series firmware versions up to v3.3 are susceptible to an improper authentication vulnerability. The issue stems from inadequate authentication controls within the web API handler. This allows low-privileged APIs to perform actions that are typically restricted to high-privileged APIs, enabling potential unauthorized operations by attackers. Users of the affected firmware are advised to review security mechanisms and consider updates to mitigate risks posed by this vulnerability.

Affected Version(s)

TN-5900 Series 1.0 <= 3.3

References

https://www.moxa.com/en/support/product-support/security-...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2023-33237 : Authentication Bypass Without Administrator Privilege