CVE-2021-31337

CVSS V2 Medium 6.8 CVSS V3 Critical 9.8
Description
The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication, which may allow a remote attacker to gain access to the device if the service is enabled. Telnet is disabled by default on the SINAMICS Medium Voltage Products (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).
Overview
  • CVE ID
  • CVE-2021-31337
  • Assigner
  • productcert@siemens.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-28T13:15:20
  • Last Modified Date
  • 2021-07-02T14:05:42
Weakness Enumerations
CWE URL
CWE-306 http://cwe.mitre.org/data/definitions/306.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:siemens:sinamics_sl150_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:sinamics_sl150:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:sinamics_sm150_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:sinamics_sm150:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:sinamics_sm150i_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:sinamics_sm150i:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04 Not Applicable Third Party Advisory US Government Resource
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-31337
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31337
History
Created Old Value New Value Data Type Notes
2022-05-10 07:09:03 Added to TrackCVE
2022-12-05 05:05:00 2021-06-28T13:15Z 2021-06-28T13:15:20 CVE Published Date updated
2022-12-05 05:05:00 2021-07-02T14:05:42 CVE Modified Date updated
2022-12-05 05:05:00 Analyzed Vulnerability Status updated