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SiemensCVE-2022-27640

HistoryMay 20, 2022 - 1:15 p.m.

CVE-2022-27640

2022-05-2013:15:15

CWE-400

siemens

web.nvd.nist.gov

vulnerability

simatic

cp 442-1 rna

cp 443-1 rna

denial of service

nvd

arp storming

CVSS2

6.1

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

6.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

19.8%

JSON

A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions < V1.5.18), SIMATIC CP 443-1 RNA (All versions < V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.

Affected configurations

Nvd

Node

siemenssimatic_cp_442-1_rna_firmwareRange<1.5.18

AND

siemenssimatic_cp_442-1_rnaMatch-

Node

siemenssimatic_cp_443-1_rna_firmwareRange<1.5.18

AND

siemenssimatic_cp_443-1_rnaMatch-

VendorProductVersionCPE
siemenssimatic_cp_442-1_rna_firmware*cpe:2.3:o:siemens:simatic_cp_442-1_rna_firmware:*:*:*:*:*:*:*:*
siemenssimatic_cp_442-1_rna-cpe:2.3:h:siemens:simatic_cp_442-1_rna:-:*:*:*:*:*:*:*
siemenssimatic_cp_443-1_rna_firmware*cpe:2.3:o:siemens:simatic_cp_443-1_rna_firmware:*:*:*:*:*:*:*:*
siemenssimatic_cp_443-1_rna-cpe:2.3:h:siemens:simatic_cp_443-1_rna:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
siemens	simatic_cp_442-1_rna_firmware	*	cpe:2.3:o:siemens:simatic_cp_442-1_rna_firmware::::::::
siemens	simatic_cp_442-1_rna	-	cpe:2.3:h:siemens:simatic_cp_442-1_rna:-:::::::*
siemens	simatic_cp_443-1_rna_firmware	*	cpe:2.3:o:siemens:simatic_cp_443-1_rna_firmware::::::::
siemens	simatic_cp_443-1_rna	-	cpe:2.3:h:siemens:simatic_cp_443-1_rna:-:::::::*

CNA Affected

[
  {
    "product": "SIMATIC CP 442-1 RNA",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V1.5.18"
      }
    ]
  },
  {
    "product": "SIMATIC CP 443-1 RNA",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V1.5.18"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-480937.pdf

Social References

CVSS2

6.1

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

6.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

19.8%

JSON

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