NVD

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CVE-2021-31340 Detail

Description

A vulnerability has been identified in SIMATIC RF166C (All versions > V1.1 and < V1.3.2), SIMATIC RF185C (All versions > V1.1 and < V1.3.2), SIMATIC RF186C (All versions > V1.1 and < V1.3.2), SIMATIC RF186CI (All versions > V1.1 and < V1.3.2), SIMATIC RF188C (All versions > V1.1 and < V1.3.2), SIMATIC RF188CI (All versions > V1.1 and < V1.3.2), SIMATIC RF360R (All versions < V2.0), SIMATIC Reader RF610R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF610R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF610R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF615R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF615R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF615R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF650R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF650R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF680R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF680R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF685R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF685R FCC (All versions > V3.0 < V4.0). Affected devices do not properly handle large numbers of incoming connections. An attacker may leverage this to cause a Denial-of-Service situation.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 7.5 HIGH

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

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf	Mitigation Patch Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	NIST Siemens AG

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Modified Analysis by NIST 5/13/2022 1:29:15 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf615r_cmiit_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf615r_cmiit:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf615r_etsi_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf615r_etsi:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf615r_fcc_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf615r_fcc:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf650r_arib_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf650r_arib:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf650r_cmiit_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf650r_cmiit:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf650r_etsi_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf650r_etsi:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf650r_fcc_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf650r_fcc:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf680r_arib_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf680r_arib:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf680r_cmiit_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf680r_cmiit:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf680r_etsi_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf680r_etsi:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf680r_fcc_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf680r_fcc:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf685r_arib_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf685r_arib:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf685r_cmiit_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf685r_cmiit:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf685r_etsi_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf685r_etsi:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_reader_rf685r_fcc_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf685r_fcc:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:siemens:simatic_rf615r_firmware::::::::* versions from (including) 3.0 OR cpe:2.3:h:siemens:simatic_rf615r:-:::::::*	AND OR cpe:2.3:o:siemens:simatic_reader_rf610r_cmiit_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf610r_cmiit:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:siemens:simatic_rf680r_firmware::::::::* versions from (including) 3.0 OR cpe:2.3:h:siemens:simatic_rf680r:-:::::::*	AND OR cpe:2.3:o:siemens:simatic_reader_rf610r_etsi_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf610r_etsi:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:siemens:simatic_rf685r_firmware::::::::* versions from (including) 3.0 OR cpe:2.3:h:siemens:simatic_rf685r:-:::::::*	AND OR cpe:2.3:o:siemens:simatic_reader_rf610r_fcc_firmware::::::::* versions from (including) 3.0 up to (excluding) 4.0 OR cpe:2.3:h:siemens:simatic_reader_rf610r_fcc:-:::::::*
Added	CWE		NIST CWE-400
Changed	Reference Type	https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf Mitigation, Vendor Advisory	https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf Mitigation, Patch, Vendor Advisory

Initial Analysis by NIST 6/22/2021 1:05:36 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf166c_firmware::::::::* versions from (excluding) 1.1 up to (excluding) 1.3.2 OR cpe:2.3:h:siemens:simatic_rf166c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf185c_firmware::::::::* versions from (excluding) 1.1 up to (excluding) 1.3.2 OR cpe:2.3:h:siemens:simatic_rf185c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf186c_firmware::::::::* versions from (excluding) 1.1 up to (excluding) 1.3.2 OR cpe:2.3:h:siemens:simatic_rf186c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf186ci_firmware::::::::* versions from (excluding) 1.1 up to (excluding) 1.3.2 OR cpe:2.3:h:siemens:simatic_rf186ci:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf188c_firmware::::::::* versions from (excluding) 1.1 up to (excluding) 1.3.2 OR cpe:2.3:h:siemens:simatic_rf188c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf188ci_firmware::::::::* versions from (excluding) 1.1 up to (excluding) 1.3.2 OR cpe:2.3:h:siemens:simatic_rf188ci:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf360r_firmware:-::::::: OR cpe:2.3:h:siemens:simatic_rf360r:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf615r_firmware::::::::* versions from (including) 3.0 OR cpe:2.3:h:siemens:simatic_rf615r:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf680r_firmware::::::::* versions from (including) 3.0 OR cpe:2.3:h:siemens:simatic_rf680r:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:siemens:simatic_rf685r_firmware::::::::* versions from (including) 3.0 OR cpe:2.3:h:siemens:simatic_rf685r:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Changed	Reference Type	https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf No Types Assigned	https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf Mitigation, Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-31340
NVD Published Date:
06/08/2021
NVD Last Modified:
10/06/2022
Source:
Siemens AG

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