CVE-2018-4838
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.1%
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.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| siemens:en100_ethernet_module_iec_104_firmware | siemens en100 ethernet module iec 104 firmware | eq | - |
CNA Affected
[
{
"product": "EN100 Ethernet module IEC 61850 variant",
"vendor": "Siemens AG",
"versions": [
{
"status": "affected",
"version": "All versions < V4.30"
}
]
},
{
"product": "EN100 Ethernet module DNP3 variant",
"vendor": "Siemens AG",
"versions": [
{
"status": "affected",
"version": "All versions < V1.04"
}
]
},
{
"product": "EN100 Ethernet module PROFINET IO variant",
"vendor": "Siemens AG",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "EN100 Ethernet module Modbus TCP variant",
"vendor": "Siemens AG",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "EN100 Ethernet module IEC 104 variant",
"vendor": "Siemens AG",
"versions": [
{
"status": "affected",
"version": "All versions < V1.22"
}
]
}
]Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.1%