CVE-2018-4838

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
A vulnerability has been identified in EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module DNP3 variant (All versions < V1.04), EN100 Ethernet module PROFINET IO variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module IEC 104 variant (All versions < V1.22). The web interface (TCP/80) of affected devices allows an unauthenticated user to upgrade or downgrade the firmware of the device, including to older versions with known vulnerabilities.
Overview
  • CVE ID
  • CVE-2018-4838
  • Assigner
  • productcert@siemens.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-03-08T17:29:00
  • Last Modified Date
  • 2019-10-03T00:03:26
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:en100_ethernet_module_iec_104_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:en100_ethernet_module_iec_104:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:en100_ethernet_module_dnp3_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:en100_ethernet_module_dnp3:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:en100_ethernet_module_modbus_tcp_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:en100_ethernet_module_modbus_tcp:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:en100_ethernet_module_profinet_io_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:en100_ethernet_module_profinet_io:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:en100_ethernet_module_iec_61850_firmware:*:*:*:*:*:*:*:* 1 OR 4.30
cpe:2.3:h:siemens:en100_ethernet_module_iec_61850:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • 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-845879.pdf Patch Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-067-01 Third Party Advisory US Government Resource
https://www.securityfocus.com/bid/103379
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-4838
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4838
History
Created Old Value New Value Data Type Notes
2022-05-10 07:43:34 Added to TrackCVE
2022-12-03 03:08:40 2018-03-08T17:29Z 2018-03-08T17:29:00 CVE Published Date updated
2022-12-03 03:08:40 2019-10-03T00:03:26 CVE Modified Date updated
2022-12-03 03:08:40 Modified Vulnerability Status updated