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[email protected]CVE-2023-25556

HistoryApr 18, 2023 - 6:15 p.m.

CVE-2023-25556

2023-04-1818:15:07

CWE-287

[email protected]

web.nvd.nist.gov

cve-2023-25556

cwe-287

improper authentication

device compromise

knx installation

8.8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.9%

JSON

A CWE-287: Improper Authentication vulnerability exists that could allow a device to be
compromised when a key of less than seven digits is entered and the attacker has access to the
KNX installation.

Affected configurations

NVD

Node

schneider-electricmerten_instabus_tastermodul_1fach_system_mMatch-

AND

schneider-electricmerten_instabus_tastermodul_1fach_system_m_firmwareMatch1.0

Node

schneider-electricmerten_instabus_tastermodul_2fach_system_mMatch-

AND

schneider-electricmerten_instabus_tastermodul_2fach_system_m_firmwareMatch1.0

Node

schneider-electricmerten_tasterschnittstelle_4fach_plusMatch-

AND

schneider-electricmerten_tasterschnittstelle_4fach_plus_firmwareMatch1.0

schneider-electricmerten_tasterschnittstelle_4fach_plus_firmwareMatch1.2

Node

schneider-electricmerten_knx_argus_180\/2\,20m_up_systemMatch-

AND

schneider-electricmerten_knx_argus_180\/2\,20m_up_system_firmwareMatch1.0

Node

schneider-electricmerten_jalousie-\/schaltaktor_reg-k\/8x\/16x\/10_m._hbMatch-

AND

schneider-electricmerten_jalousie-\/schaltaktor_reg-k\/8x\/16x\/10_m._hb_firmwareMatch1.0

Node

schneider-electricmerten_knx_uni-dimmaktor_ll_reg-k\/2x230\/300_wMatch-

AND

schneider-electricmerten_knx_uni-dimmaktor_ll_reg-k\/2x230\/300_w_firmwareMatch1.0

schneider-electricmerten_knx_uni-dimmaktor_ll_reg-k\/2x230\/300_w_firmwareMatch1.1

Node

schneider-electricmerten_knx_schaltakt.2x6a_up_m.2_eing.Match-

AND

schneider-electricmerten_knx_schaltakt.2x6a_up_m.2_eing._firmwareMatch0.1

CPENameOperatorVersion
schneider-electric:merten_instabus_tastermodul_1fach_system_m_firmwareschneider-electric merten instabus tastermodul 1fach system m firmwareeq1.0

CPE	Name	Operator	Version
schneider-electric:merten_instabus_tastermodul_1fach_system_m_firmware	schneider-electric merten instabus tastermodul 1fach system m firmware	eq	1.0

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Merten INSTABUS Tastermodul 1fach System M 625199",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 1.0"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Merten INSTABUS Tastermodul 2fach System M 625299",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 1.0"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Merten Tasterschnittstelle 4fach plus 670804",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 1.0"
      },
      {
        "status": "affected",
        "version": "Program Version 1.2"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Merten KNX ARGUS 180/2,20M UP SYSTEM 631725",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 1.0"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Merten Jalousie-/Schaltaktor REG-K/8x/16x/10 m. HB 649908",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 1.0"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Merten KNX Uni-Dimmaktor LL REG-K/2x230/300 W MEG6710-0002",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 1.0"
      },
      {
        "status": "affected",
        "version": "Program Version 1.1"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Merten KNX Schaltakt.2x6A UP m.2 Eing. MEG6003-0002",
    "vendor": "Schneider Electric",
    "versions": [
      {
        "status": "affected",
        "version": "Program Version 0.1"
      }
    ]
  }
]

References

download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-045-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-045-03.pdf

Social References

8.8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.9%

JSON

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