Vulnerability Monitor

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CVE-2020-25241

A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP RST packages. An attacker could exploit this to terminate arbitrary TCP sessions.

Published

2021-03-15T17:15:20.097

Last Modified

2024-11-21T05:17:44.600

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

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

10.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-1285
  • Type: Primary
    CWE-129
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens simatic_mv440_sr_firmware < 7.0.6 Yes
Hardware siemens simatic_mv440_sr - No
Operating System siemens simatic_mv440_hr_firmware < 7.0.6 Yes
Hardware siemens simatic_mv440_hr - No
Operating System siemens simatic_mv440_ur_firmware < 7.0.6 Yes
Hardware siemens simatic_mv440_ur - No
Operating System siemens simatic_mv420_sr-b_firmware < 7.0.6 Yes
Hardware siemens simatic_mv420_sr-b - No
Operating System siemens simatic_mv420_sr-p_firmware < 7.0.6 Yes
Hardware siemens simatic_mv420_sr-p - No
Operating System siemens simatic_mv420_sr-b_body_firmware < 7.0.6 Yes
Hardware siemens simatic_mv420_sr-b_body - No
Operating System siemens simatic_mv420_sr-p_body_firmware < 7.0.6 Yes
Hardware siemens simatic_mv420_sr-p_body - No
References