Auth bypass in Siemens En100 Ethernet Module
CVE-2016-7114
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; SIPROTEC 7SJ686 : All versions < V 4.87; SIPROTEC 7UT686 : All versions < V 4.02; SIPROTEC 7SD686 : All versions < V 4.05; SIPROTEC 7SJ66 : All versions < V 4.30. Attackers with network access to the device's web interface (port 80/tcp) could possibly circumvent authentication and perform certain administrative operations. A legitimate user must be logged into the web interface for the attack to be successful.
Vulnerability class: Broken Authentication
EPSS: 0.021 (79.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Siemens En100_ethernet_module
- Siemens En100_ethernet_module_firmware — versions 4.28
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2016-7114?
- CVE-2016-7114 is a high-severity vulnerability in Siemens En100 Ethernet Module, classified under Improper Authentication. CVSS score: 8.8/10. Published 2016-09-06.
- How severe is CVE-2016-7114?
- High severity. CVSS v3 base score is 8.8 out of 10.