CVE-2016-3949 Information

Description

Siemens SIMATIC S7-300 Profinet-enabled CPU devices with firmware before 3.2.12 and SIMATIC S7-300 Profinet-disabled CPU devices with firmware before 3.3.12 allow remote attackers to cause a denial of service (defect-mode transition) via crafted (1) ISO-TSAP or (2) Profibus packets.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securitytracker.com/id/1036089 http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-818183.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-818183.pdf https://ics-cert.us-cert.gov/advisories/ICSA-16-161-01

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5