7.5
HIGH
CVE-2021-31340
Siemens SIMATIC RFID Remote Denial-of-Service Vulnerability
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.
INFO
Published Date :
June 8, 2021, 8:15 p.m.
Last Modified :
Oct. 6, 2022, 5:28 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-31340
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-31340.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf | Mitigation Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-31340 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-31340 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 06, 2022
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_rf360r_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_rf360r:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:siemens:simatic_rf360r_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.0 OR cpe:2.3:h:siemens:simatic_rf360r:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 20, 2022
Action Type Old Value New Value Changed 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), 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. 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. -
Modified Analysis by [email protected]
May. 13, 2022
Action Type Old Value New Value 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 Added CWE NIST CWE-400 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 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_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_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_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_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_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:-:*:*:*:*:*:*:* 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:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 12, 2022
Action Type Old Value New Value Changed 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), SIMATIC RF615R (All versions > V3.0), SIMATIC RF680R (All versions > V3.0), SIMATIC RF685R (All versions > V3.0). Affected devices do not properly handle large numbers of incoming connections. An attacker may leverage this to cause a Denial-of-Service situation. 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), 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. -
Initial Analysis by [email protected]
Jun. 22, 2021
Action Type Old Value New Value 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 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:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-31340 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-31340
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.01%
score
0.40949
percentile
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability