National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-13805 Detail

Current Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller (All versions >= V2.0 and < V2.1.6), SIMATIC S7-1500 Software Controller (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 incl. F (All versions >= V2.0 and < V2.5). An attacker can cause a denial-of-service condition on the network stack by sending a large number of specially crafted packets to the PLC. The PLC will lose its ability to communicate over the network. This vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no privileges and no user interaction. An attacker could use this vulnerability to compromise availability of the network connectivity. At the time of advisory publication no public exploitation of this vulnerability was known.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-347726.pdf Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Uncontrolled Resource Consumption (CWE-400)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:siemens:simatic_et_200sp_firmware:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.0
Running on/with
 cpe:2.3:h:siemens:simatic_et_200sp:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:siemens:simatic_s7-1500_firmware:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.0
Up to (excluding)
2.5
Running on/with
 cpe:2.3:h:siemens:simatic_s7-1500:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:siemens:simatic_s7-1500f_firmware:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.0
Up to (excluding)
2.5
Running on/with
 cpe:2.3:h:siemens:simatic_s7-1500f:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-13805
NVD Published Date:
10/10/2018
NVD Last Modified:
03/21/2019