CVE-2021-37172

Published on: 08/10/2021 12:00:00 AM UTC

Last Modified on: 09/14/2021 11:15:00 AM UTC

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

Certain versions of Cpu 1211c from Siemens contain the following vulnerability:

A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (V4.5.0). Affected devices fail to authenticate against configured passwords when provisioned using TIA Portal V13. This could allow an attacker using TIA Portal V13 or later versions to bypass authentication and download arbitrary programs to the PLC. The vulnerability does not occur when TIA Portal V13 SP1 or any later version was used to provision the device.

  • CVE-2021-37172 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo Siemens - SIMATIC S7-1200 CPU family (incl. SIPLUS variants) version V4.5.0

CVSS3 Score: 7.5 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE HIGH NONE

CVSS2 Score: 5 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE PARTIAL NONE

CVE References

Description Tags Link
cert-portal.siemens.com
application/pdf
URL Logo MISC cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
HardwareSiemensCpu 1211c-AllAllAll
HardwareSiemensCpu 1212c-AllAllAll
HardwareSiemensCpu 1212fc-AllAllAll
HardwareSiemensCpu 1214c-AllAllAll
HardwareSiemensCpu 1214fc-AllAllAll
HardwareSiemensCpu 1215c-AllAllAll
HardwareSiemensCpu 1215fc-AllAllAll
HardwareSiemensCpu 1217c-AllAllAll
Operating
System
SiemensSimatic S7-1200 Cpu Firmware4.5.0AllAllAll
  • cpe:2.3:h:siemens:cpu_1211c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1212c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1212fc:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1214c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1214fc:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1215c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1215fc:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:siemens:cpu_1217c:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:siemens:simatic_s7-1200_cpu_firmware:4.5.0:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-37172 : A vulnerability has been identified in SIMATIC S7-1200 CPU family incl. SIPLUS variants V4.5.0… twitter.com/i/web/status/1… 2021-08-10 10:46:05
Twitter Icon @icsresilience Siemens S7-1200 authentication bypass vulnerability: CVE - CVE-2021-37172 2021-08-10 11:47:50
© CVE.report 2021 Twitter Nitter Twitter Viewer |

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