PT-2017-9449 · Siemens · Siemens Eta4

Adam Crain + 4 · Published 2017-02-13 · Updated 2017-03-14 · CVE-2016-7987

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Siemens ETA4 firmware versions prior to Revision 08

Description The issue allows specially crafted packets sent to Port 2404/TCP to cause the affected device to go into defect mode, resulting in a Denial-of-Service. A cold start might be required to recover the system.

Recommendations For versions prior to Revision 08, update the firmware to Revision 08 or later to resolve the issue. As a temporary workaround, consider restricting access to Port 2404/TCP to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-19

Related Identifiers

CVE-2016-7987

Affected Products

Siemens Eta4

References · 4

• https://osv.dev/vulnerability/CVE-2016-7987 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7987 · Security Note
• https://ics-cert.us-cert.gov/advisories/ICSA-16-299-01 · Note
• http://securityfocus.com/bid/93832 · Note