CVE-2016-9158 Information

Description

A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions) SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions) SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions) SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions) SIMATIC S7-400 V6 and earlier CPU family (All versions) SIMATIC S7-400 V7 CPU family (All versions). Specially crafted packets sent to port 80/tcp could cause the affected devices to go into defect mode. A cold restart is required to recover the system.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/94820 http://www.securitytracker.com/id/1037434 https://cert-portal.siemens.com/productcert/pdf/ssa-731239.pdf https://ics-cert.us-cert.gov/advisories/ICSA-16-348-05 https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-731239.pdf

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