SSA-787292

AFFECTED PRODUCTS AND SOLUTION

Affected Product and Versions	Remediation
SIMATIC Reader RF610R CMIIT (6GT2811-6BC10-2AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF610R ETSI (6GT2811-6BC10-0AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF610R FCC (6GT2811-6BC10-1AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF615R CMIIT (6GT2811-6CC10-2AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF615R ETSI (6GT2811-6CC10-0AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF615R FCC (6GT2811-6CC10-1AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF650R ARIB (6GT2811-6AB20-4AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF650R CMIIT (6GT2811-6AB20-2AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF650R ETSI (6GT2811-6AB20-0AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF650R FCC (6GT2811-6AB20-1AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF680R ARIB (6GT2811-6AA10-4AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF680R CMIIT (6GT2811-6AA10-2AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF680R ETSI (6GT2811-6AA10-0AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF680R FCC (6GT2811-6AA10-1AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF685R ARIB (6GT2811-6CA10-4AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF685R CMIIT (6GT2811-6CA10-2AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF685R ETSI (6GT2811-6CA10-0AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC Reader RF685R FCC (6GT2811-6CA10-1AA0): All versions > V3.0 < V4.0	Update to V4.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808361 See further recommendations from section Workarounds and Mitigations
SIMATIC RF166C (6GT2002-0EE20): All versions > V1.1 and < V1.3.2	Update to V1.3.2 https://support.industry.siemens.com/cs/ww/en/view/109768507 See further recommendations from section Workarounds and Mitigations
SIMATIC RF185C (6GT2002-0JE10): All versions > V1.1 and < V1.3.2	Update to V1.3.2 https://support.industry.siemens.com/cs/ww/en/view/109768507 See further recommendations from section Workarounds and Mitigations
SIMATIC RF186C (6GT2002-0JE20): All versions > V1.1 and < V1.3.2	Update to V1.3.2 https://support.industry.siemens.com/cs/ww/en/view/109768507 See further recommendations from section Workarounds and Mitigations
SIMATIC RF186CI (6GT2002-0JE50): All versions > V1.1 and < V1.3.2	Update to V1.3.2 https://support.industry.siemens.com/cs/ww/en/view/109768507 See further recommendations from section Workarounds and Mitigations
SIMATIC RF188C (6GT2002-0JE40): All versions > V1.1 and < V1.3.2	Update to V1.3.2 https://support.industry.siemens.com/cs/ww/en/view/109768507 See further recommendations from section Workarounds and Mitigations
SIMATIC RF188CI (6GT2002-0JE60): All versions > V1.1 and < V1.3.2	Update to V1.3.2 https://support.industry.siemens.com/cs/ww/en/view/109768507 See further recommendations from section Workarounds and Mitigations
SIMATIC RF360R (6GT2801-5BA30): All versions < V2.0	Update to V2.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109808759 See further recommendations from section Workarounds and Mitigations

WORKAROUNDS AND MITIGATIONS

Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:

Deactivate the OPC-UA feature of affected devices

Product specific remediations or mitigations can be found in the section Affected Products and Solution.

Please follow the General Security Recommendations.

GENERAL SECURITY RECOMMENDATIONS

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens’ operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.

Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

PRODUCT DESCRIPTION

SIMATIC RF185C, RF186C/CI, and RF188C/CI are communication modules for direct connection of SIMATIC identification systems to PROFINET IO/Ethernet and OPC UA.

SIMATIC RF300R is a compact RFID reader for use with Profinet and Ethernet

SIMATIC RF600 Readers are used for the contactless identification of every kind of object, e.g. transport containers, pallets, production goods, or it can be generally used for recording goods in bulk.

VULNERABILITY CLASSIFICATION

The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss). The CVSS environmental score is specific to the customer’s environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring.

An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at: https://cwe.mitre.org/.

Vulnerability CVE-2021-31340

Affected devices do not properly handle large numbers of incoming connections. An attacker may leverage this to cause a Denial-of-Service situation.

CVSS v3.1 Base Score	7.5
CVSS Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CWE:	CWE-400: Uncontrolled Resource Consumption

ADDITIONAL INFORMATION

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT:

https://www.siemens.com/cert/advisories

HISTORY DATA

V1.0 (2021-06-08): Publication Date

V1.1 (2022-04-12): Added solution for SIMATIC RF600R family and clarified list of affected devices

V1.2 (2022-05-10): Added solution for SIMATIC RF360R

TERMS OF USE

Siemens Security Advisories are subject to the terms and conditions contained in Siemens’ underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens’ Global Website https://new.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.

Publication Date:	2021-06-08
Last Update:	2022-05-10
Current Version:	V1.2
CVSS v3.1 Base Score:	7.5