CVE-2017-6026

critical

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.

References

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

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

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

Details

Source: Mitre, NVD

Published: 2017-06-30

Updated: 2022-02-02

Risk Information

CVSS v2

Base Score: 6.4

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

Severity: Medium

CVSS v3

Base Score: 9.1

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

Severity: Critical