Vulnerability CVE-2018-4839


Published: 2018-03-08

Description:
A vulnerability has been identified in Siemens DIGSI 4 (All versions < V4.92), EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module PROFINET IO variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 104 variant (All versions), SIPROTEC Compact 7SJ80 (All versions < V4.77), SIPROTEC Compact 7SK80 (All versions < V4.77), SIPROTEC Compact 7SJ66 (All versions < V4.30), Other SIPROTEC Compact relays (All versions), Other SIPROTEC 4 relays (All versions). An attacker with local access to the engineering system or in a privileged network position and able to obtain certain network traffic could possibly reconstruct access authorization passwords.

Type:

CWE-noinfo

CVSS2 => (AV:N/AC:M/Au:S/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.5/10
2.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Siemens -> En100 ethernet module dnp3 firmware 
Siemens -> En100 ethernet module iec 104 firmware 
Siemens -> En100 ethernet module modbus tcp firmware 
Siemens -> En100 ethernet module profinet io firmware 

 References:
https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf
https://ics-cert.us-cert.gov/advisories/ICSA-18-067-01

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