Vulnerability CVE-2016-7112
Published: 2016-09-05   Modified: 2016-09-06

Description:
A vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module : All versions < V1.04.01; Firmware variant Modbus TCP for EN100 Ethernet module : All versions < V1.11.00; Firmware variant DNP3 TCP for EN100 Ethernet module : All versions < V1.03; Firmware variant IEC 104 for EN100 Ethernet module : All versions < V1.21; EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 : All versions < 1.02.02. Attackers with network access to the device's web interface (port 80/tcp) could possibly circumvent authentication and perform certain administrative operations.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
10/10
10/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Siemens -> En100 ethernet module firmware 

 References:
http://www.securityfocus.com/bid/92747
http://www.securityfocus.com/bid/99471
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-630413.pdf
https://ics-cert.us-cert.gov/advisories/ICSA-17-187-03
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_SSA-323211.pdf
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