CVE-2020-15796

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
A vulnerability has been identified in SIMATIC ET 200SP Open Controller (incl. SIPLUS variants) (V20.8), SIMATIC S7-1500 Software Controller (V20.8). The web server of the affected products contains a vulnerability that could allow a remote attacker to trigger a denial-of-service condition by sending a specially crafted HTTP request.
Overview
  • CVE ID
  • CVE-2020-15796
  • Assigner
  • productcert@siemens.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-14T21:15:19
  • Last Modified Date
  • 2020-12-18T02:35:45
Weakness Enumerations
CWE URL
CWE-248 http://cwe.mitre.org/data/definitions/248.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:siemens:simatic_et_200sp_open_controller_firmware:*:*:*:*:*:*:*:* 1 OR 20.8
cpe:2.3:h:siemens:simatic_et_200sp_open_controller:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-1500_software_controller_firmware:*:*:*:*:*:*:*:* 1 OR 20.8
cpe:2.3:h:siemens:simatic_s7-1500_software_controller:-:*:*:*:*:*:*:* 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-700697.pdf Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-15796
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15796
History
Created Old Value New Value Data Type Notes
2022-05-10 07:29:52 Added to TrackCVE
2022-12-05 18:13:06 2020-12-14T21:15Z 2020-12-14T21:15:19 CVE Published Date updated
2022-12-05 18:13:06 2020-12-18T02:35:45 CVE Modified Date updated
2022-12-05 18:13:06 Analyzed Vulnerability Status updated