CVE-2017-16690

Current Description

A malicious DLL preload attack possible on NwSapSetup and Installation self-extracting program for SAP Plant Connectivity 2.3 and 15.0. It is possible that SAPSetup / NwSapSetup.exe loads system DLLs like DWMAPI.dll (located in your Syswow64 / System32 folder) from the folder the executable is in and not from the system location. The desired behavior is that system dlls are only loaded from the system folders. If a dll with the same name as the system dll is located in the same folder as the executable, this dll is loaded and code is executed.

Basic Data

Published	December 12, 2017
Last Modified	December 29, 2017
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-426
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS 2 - Access Vector	NETWORK
CVSS 2 - Access Complexity	MEDIUM
CVSS 2 - Authentication	NONE
CVSS 2 - Confidentiality Impact	PARTIAL
CVSS 2 - Availability Impact	PARTIAL
CVSS 2 - Base Score	6.8
Severity	MEDIUM
Exploitability Score	8.6
Impact Score	6.4
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

CVSS 3 - Version	3.0
CVSS 3 - Vector String	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3 - Attack Vector	LOCAL
CVSS 3 - Attack Complexity	LOW
CVSS 3 - Privileges Required	NONE
CVSS 3 - User Interaction	REQUIRED
CVSS 3 - Scope	UNCHANGED
CVSS 3 - Confidentiality Impact	HIGH
CVSS 3 - Integrity Impact	HIGH
CVSS 3 - Availability Impact	HIGH
CVSS 3 - Base Score	7.8
CVSS 3 - Base Severity	HIGH
Exploitability Score	1.8
Base Severity	HIGH

Configurations

Vulnerable Software List

Vendor	Product	Versions
Sap	Plant Connectivity	15.0, 2.3

References