Moxa PT-G503 Series Sensitive Cookie Not Properly Secured (CVE-2023-4217)

medium Tenable OT Security Plugin ID 501765


The remote OT asset is affected by a vulnerability.


A vulnerability has been identified in PT-G503 Series versions prior to v5.2, where the session cookies attribute is not set properly in the affected application. The vulnerability may lead to security risks, potentially exposing user session data to unauthorized access and manipulation.

This plugin only works with Tenable.ot.
Please visit for more information.


Refer to the vendor advisory.

See Also

Plugin Details

Severity: Medium

ID: 501765

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 11/9/2023

Updated: 2/21/2024

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Low

Score: 1.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2023-4217


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:moxa:eds-g503_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 11/2/2023

Vulnerability Publication Date: 11/2/2023

Reference Information

CVE: CVE-2023-4217

CWE: 668