CVE-2020-15791

CVSS V2 Low 3.3 CVSS V3 Medium 6.5
Description
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.
Overview
  • CVE ID
  • CVE-2020-15791
  • Assigner
  • productcert@siemens.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2020-09-09T19:15:20
  • Last Modified Date
  • 2020-12-14T22:15:14
Weakness Enumerations
CWE URL
CWE-522 http://cwe.mitre.org/data/definitions/522.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_312_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_312:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_314_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_314:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_dp_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_315-2_dp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_pn_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_315-2_pn:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_317-2_pn_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_317-2_pn:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_317-2_dp_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_317-2_dp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_315f-2_dp_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_315f-2_dp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_315f-2_pn_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_315f-2_pn:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_317f-2_pn_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_317f-2_pn:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-300_cpu_317f-2_dp_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-300_cpu_317f-2_dp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-400_cpu_412_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-400_cpu_412:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-400_cpu_414_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-400_cpu_414:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-400_cpu_416_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-400_cpu_416:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_s7-400_cpu_417_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_s7-400_cpu_417:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 3.3
  • Severity
  • LOW
  • Exploitability Score
  • 6.5
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-381684.pdf Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-15791
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15791
History
Created Old Value New Value Data Type Notes
2022-05-10 07:30:25 Added to TrackCVE
2022-12-04 22:17:59 2020-09-09T19:15Z 2020-09-09T19:15:20 CVE Published Date updated
2022-12-04 22:17:59 2020-12-14T22:15:14 CVE Modified Date updated
2022-12-04 22:17:59 Modified Vulnerability Status updated