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[email protected]CVE-2021-41545

HistoryMay 10, 2022 - 11:15 a.m.

CVE-2021-41545

2022-05-1011:15:07

CWE-248

[email protected]

web.nvd.nist.gov

cve-2021-41545

desigo dxr2

desigo pxc3

desigo pxc4

desigo pxc5

vulnerability

bacnet protocol

factory reset

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.6%

JSON

A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo PXC3 (All versions < V01.21.142.4-18), Desigo PXC4 (All versions < V02.20.142.10-10884), Desigo PXC5 (All versions < V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.

Affected configurations

NVD

Node

siemensdesigo_dxr2_firmwareRange<01.21.142.5-22

AND

siemensdesigo_dxr2Match-

Node

siemensdesigo_pxc3_firmwareRange<01.21.142.4-18

AND

siemensdesigo_pxc3Match-

Node

siemensdesigo_pxc4_firmwareRange<02.20.142.10-10884

AND

siemensdesigo_pxc4Match-

Node

siemensdesigo_pxc5_firmwareRange<02.20.142.10-10884

AND

siemensdesigo_pxc5Match-

CPENameOperatorVersion
siemens:desigo_dxr2_firmwaresiemens desigo dxr2 firmwarelt01.21.142.5-22

CPE	Name	Operator	Version
siemens:desigo_dxr2_firmware	siemens desigo dxr2 firmware	lt	01.21.142.5-22

CNA Affected

[
  {
    "product": "Desigo DXR2",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V01.21.142.5-22"
      }
    ]
  },
  {
    "product": "Desigo PXC3",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V01.21.142.4-18"
      }
    ]
  },
  {
    "product": "Desigo PXC4",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V02.20.142.10-10884"
      }
    ]
  },
  {
    "product": "Desigo PXC5",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V02.20.142.10-10884"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-662649.pdf

Social References

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.6%

JSON

Related for CVE-2021-41545

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