Detections
Analytics

Siemens SIMATIC S7-400 PN CPUs 5.x Malformed HTTP or IP Packets DOS

high Nessus Network Monitor Plugin ID 720186

Synopsis

Siemens SIMATIC S7-400 PN CPUs allow remote attackers to cause a denial of service via malformed HTTP or IP packets.

Description

Siemens SIMATIC S7-400 PN CPU devices with firmware 5.x allow remote attackers to cause a denial of service (defect-mode transition and service outage) via (1) malformed HTTP traffic or (2) malformed IP packets.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-617264.pdf,http://www.us-cert.gov/control_systems/pdf/ICSA-12-212-02.pdf

Plugin Details

Severity: High

ID: 720186

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Information

Patch Publication Date: 7/31/2012

Vulnerability Publication Date: 7/31/2012

Reference Information

CVE: CVE-2012-3017