Detections
Analytics

Schneider (CVE-2017-6026)

critical Tenable OT Security Plugin ID 500862

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomization and are shared between several users. This may allow a current session to be compromised.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02

http://www.securityfocus.com/bid/97254

https://www.exploit-db.com/exploits/45918/

Plugin Details

Severity: Critical

ID: 500862

Version: 1.9

Type: remote

Family: Tenable.ot

Published: 3/1/2023

Updated: 11/23/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

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

CVSS Score Source: CVE-2017-6026

CVSS v3

Risk Factor: Critical

Base Score: 9.1

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

Vulnerability Information

CPE: cpe:/o:schneider-electric:modicon_m251_firmware, cpe:/o:schneider-electric:modicon_m241_firmware

Required KB Items: Tenable.ot/Schneider

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/30/2017

Vulnerability Publication Date: 6/30/2017

Reference Information

CVE: CVE-2017-6026

CWE: 330

ICSA: 17-089-02