CVE-2017-6026

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 30-06-2017 05:29

Last modified: - 02-02-2022 02:05

Total changes: - 7

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Low

Attack complexity

Network

Attack vector

None

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

9.1

Base score

3.9

5.2

Exploitability score

Impact score

Verification logic

AND

vendor=schneider-electric AND product=modicon_m251_firmware AND versionEndIncluding=4.0.3.20

vendor=schneider-electric AND product=modicon_m251 AND version=-

AND

vendor=schneider-electric AND product=modicon_m241_firmware AND versionEndIncluding=4.0.3.20

vendor=schneider-electric AND product=modicon_m241 AND version=-

Reference

https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02
97254-Third Party Advisory, VDB Entry
45918-Exploit, Third Party Advisory, VDB Entry

Keywords

CVE-2017-6026

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2017-6026

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures