Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2017-6026

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.

Published

2017-06-30T03:29:00.327

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 9.1 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

4.9

Weaknesses
  • Type: Secondary
    CWE-330
  • Type: Primary
    CWE-330
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System schneider-electric modicon_m251_firmware ≤ 4.0.3.20 Yes
Hardware schneider-electric modicon_m251 - No
Operating System schneider-electric modicon_m241_firmware ≤ 4.0.3.20 Yes
Hardware schneider-electric modicon_m241 - No
References