CVE-2021-31340

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-31340
  • Assigner
  • productcert@siemens.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-08T20:15:08
  • Last Modified Date
  • 2022-10-06T17:28:44
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:siemens:simatic_rf166c_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.2
cpe:2.3:h:siemens:simatic_rf166c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_rf185c_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.2
cpe:2.3:h:siemens:simatic_rf185c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_rf186c_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.2
cpe:2.3:h:siemens:simatic_rf186c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_rf186ci_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.2
cpe:2.3:h:siemens:simatic_rf186ci:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_rf188c_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.2
cpe:2.3:h:siemens:simatic_rf188c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_rf188ci_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.2
cpe:2.3:h:siemens:simatic_rf188ci:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_rf360r_firmware:*:*:*:*:*:*:*:* 1 OR 2.0
cpe:2.3:h:siemens:simatic_rf360r:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf610r_cmiit_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf610r_cmiit:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf610r_etsi_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf610r_etsi:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf610r_fcc_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf610r_fcc:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf615r_cmiit_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf615r_cmiit:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf615r_etsi_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf615r_etsi:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf615r_fcc_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf615r_fcc:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf650r_cmiit_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf650r_cmiit:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf650r_etsi_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf650r_etsi:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf650r_fcc_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf650r_fcc:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf650r_arib_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf650r_arib:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf680r_cmiit_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf680r_cmiit:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf680r_etsi_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf680r_etsi:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf680r_fcc_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf680r_fcc:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf680r_arib_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf680r_arib:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf685r_cmiit_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf685r_cmiit:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf685r_etsi_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf685r_etsi:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf685r_fcc_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf685r_fcc:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_reader_rf685r_arib_firmware:*:*:*:*:*:*:*:* 1 OR 3.0 4.0
cpe:2.3:h:siemens:simatic_reader_rf685r_arib:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf Mitigation Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-31340
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31340
History
Created Old Value New Value Data Type Notes
2022-05-10 15:43:39 Added to TrackCVE
2022-12-05 03:45:23 2021-06-08T20:15Z 2021-06-08T20:15:08 CVE Published Date updated
2022-12-05 03:45:23 2022-10-06T17:28:44 CVE Modified Date updated
2022-12-05 03:45:23 Analyzed Vulnerability Status updated