Vulnerability Monitor

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CVE-2021-31893

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.

Published

2021-07-13T11:15:09.527

Last Modified

2024-11-21T06:06:26.987

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-120
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens simatic_pcs_firmware ≤ 8.2 Yes
Operating System siemens simatic_pcs_firmware 9.0 Yes
Operating System siemens simatic_pcs_firmware 9.0 Yes
Operating System siemens simatic_pcs_firmware 9.0 Yes
Hardware siemens simatic_pcs - No
Operating System siemens simatic_pdm_firmware < 9.2 Yes
Hardware siemens simatic_pdm - No
Operating System siemens simatic_step_7_firmware ≤ 5.6 Yes
Hardware siemens simatic_step_7 - No
Operating System siemens sinamics_starter_firmware < 5.4 Yes
Operating System siemens sinamics_starter_firmware 5.4 Yes
Operating System siemens sinamics_starter_firmware 5.4 Yes
Operating System siemens sinamics_starter_firmware 5.4 Yes
Hardware siemens sinamics_starter - No
References