DNS Multiple Race Exploiter is a tool that exploits an inherent flaw in the

DNS Server Cache. By sending many queries to a DNS server along with fake
replies, an attacker can successfuly writes a fake new entry in the DNS
cache.

WWW:	http://www.securebits.org/dnsmre.html

PR:		ports/126189
Submitted by:	Tomoyuki Sakurai <cherry at trombik.org>

dns/Makefile

@@ -22,6 +22,7 @@
     SUBDIR += dlint
     SUBDIR += dnrd
     SUBDIR += dns_balance
+    SUBDIR += dns_mre
     SUBDIR += dnscheck
     SUBDIR += dnsdoctor
     SUBDIR += dnsflood

dns/dns_mre/Makefile

@@ -0,0 +1,27 @@
+# New ports collection makefile for:	dns_mre
+# Date created:		2008-08-02
+# Whom:			Tomoyuki Sakurai <cherry@trombik.org>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	dns_mre
+PORTVERSION=	1.0
+CATEGORIES=	dns security
+MASTER_SITES=	http://www.securebits.org/tools/
+DISTNAME=	${PORTNAME}-v${PORTVERSION}
+
+MAINTAINER=	cherry@trombik.org
+COMMENT=	DNS Cache Poisoner/Overwriter
+
+NO_WRKSUBDIR=	Yes
+
+PLIST_FILES=	bin/dns_mre
+
+do-build:
+	cd ${WRKSRC} && ${CC} ${CFLAGS} -Wall main.c dns_mre.c -o dns_mre
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/dns_mre ${PREFIX}/bin/
+
+.include <bsd.port.mk>

dns/dns_mre/distinfo

@@ -0,0 +1,3 @@
+MD5 (dns_mre-v1.0.tar.gz) = a080cf0d3d5faa5bc1351c55d9f43415
+SHA256 (dns_mre-v1.0.tar.gz) = 7a3c264805686bedf06f10fa7536403d679cf69f269b95cb8a11d4f3e1d026e6
+SIZE (dns_mre-v1.0.tar.gz) = 21958

dns/dns_mre/files/patch-dns_mre.c

@@ -0,0 +1,27 @@
+--- dns_mre.c.orig	2008-08-02 01:23:19.000000000 +0900
++++ dns_mre.c	2008-08-02 20:37:50.000000000 +0900
+@@ -160,7 +160,6 @@
+ 	u_int8_t *	udp_pointer = NULL;
+ 	u_int8_t *	dns_pointer = NULL;
+ 	int			dns_size;
+-	int			i;
+ 
+ 	if( !answer_flag )
+ 		printf("# Preparing query raw packet...");
+@@ -195,7 +194,7 @@
+ 	u_int8_t *	ip4_pointer = NULL;
+ 	u_int8_t *	udp_pointer = NULL;
+ 	u_int8_t *	dns_pointer = NULL;
+-	int			dns_size;
++	int			dns_size = 0;
+ 	int			i;
+ 
+ 	if( !answer_flag )
+@@ -797,6 +796,7 @@
+ 		"    -x <no_txids>		Number of static Transaction IDs to use (optional; default 15)\n"
+ 		"    -v					Verbosity\n"
+ 		, cmd);
++    return 1;
+ }
+ 
+ 

dns/dns_mre/files/patch-dns_mre.h

@@ -0,0 +1,10 @@
+--- dns_mre.h.orig	2008-08-02 04:02:47.000000000 +0900
++++ dns_mre.h	2008-08-02 04:02:51.000000000 +0900
+@@ -32,6 +32,7 @@
+ #include <netdb.h>
+ #include <arpa/inet.h>
+ #include <string.h>
++#include <time.h>
+ 
+ /* Definitions */
+ #define Q_S_PORT	2345	/* Query Source Port */

dns/dns_mre/pkg-descr

@@ -0,0 +1,6 @@
+DNS Multiple Race Exploiter is a tool that exploits an inherent flaw in the
+DNS Server Cache. By sending many queries to a DNS server along with fake
+replies, an attacker can successfuly writes a fake new entry in the DNS
+cache.
+
+WWW:	http://www.securebits.org/dnsmre.html