如何在 DD-WRT 上禁用 WPS？

Question

摘自此主题在 DD-WRT 论坛上：

简短回答：即使 WPS 似乎处于活动状态，您的 DD-WRT 设备上的 WPS 也可能已被禁用。这取决于文件wps_state中的值：表示活动，或表示不活动。/tmp/path[0-9]_hostap.conf102

是时候测试真实的东西了AirCrack-NG。如果我扫描使用 AiroDump-NG：

luis@Frambuesio:~$ sudo airodump-ng wlan1mon --wps -c 2

 CH  2 ][ Elapsed: 1 min ][ 2015-12-15 00:48

 BSSID              PWR RXQ  Beacons    #Data, #/s  CH  MB   ENC  CIPHER AUTH WPS     ESSID

 XX:XX:XX:XX:XX:XX  -35 100      435       20    0   2  54e. WPA2 CCMP   PSK  Locked  MyWiFiNetWork

似乎有一些WPS，但在已锁定状态。

如果我尝试攻击通过 WPS 进行，例如，欺负：

luis@Frambuesio:~$ sudo bully wlan1mon --bssid 00:24:A5:XX:XX:XX -v 3 -c 2
[!] Bully v1.0-22 - WPS vulnerability assessment utility
[+] Switching interface 'wlan1mon' to channel '2'
[!] Using '00:1c:f0:9f:fc:84' for the source MAC address
[+] Datalink type set to '127', radiotap headers present
[+] Scanning for beacon from '00:24:a5:XX:XX:XX' on channel '2'
[!] Excessive (3) FCS failures while reading next packet
[!] Excessive (3) FCS failures while reading next packet
[!] Excessive (3) FCS failures while reading next packet
[!] Disabling FCS validation (assuming --nofcs)
[+] Got beacon for 'MyWiFiNetWork' (00:24:a5:XX:XX:XX)
[!] Beacon information element indicates WPS is locked
[+] Loading randomized pins from '/root/.bully/pins'
[!] Restoring session from '/root/.bully/0024a5c816a2.run'
[+] Index of starting pin number is '0000000'
[+] Last State = 'NoAssoc'   Next pin '64121635'
[!] WPS lockout reported, sleeping for 43 seconds ...
^C
Saved session to '/root/.bully/0024a5c816a2.run'

它的确是锁定。如果我力量即使是锁定状态，攻击也是如此：

luis@Frambuesio:~$ sudo bully wlan1mon --bssid 00:24:A5:XX:XX:XX -v 3 -L -c 2
[!] Bully v1.0-22 - WPS vulnerability assessment utility
[+] Switching interface 'wlan1mon' to channel '2'
[!] Using '00:1c:f0:9f:fc:84' for the source MAC address
[+] Datalink type set to '127', radiotap headers present
[+] Scanning for beacon from '00:24:a5:XX:XX:XX' on channel '2'
[!] Excessive (3) FCS failures while reading next packet
[!] Excessive (3) FCS failures while reading next packet
[!] Excessive (3) FCS failures while reading next packet
[!] Disabling FCS validation (assuming --nofcs)
[+] Got beacon for 'MyWiFiNetWork' (00:24:a5:XX:XX:XX)
[!] Beacon information element indicates WPS is locked
[+] Loading randomized pins from '/root/.bully/pins'
[!] Restoring session from '/root/.bully/0024a5c816a2.run'
[+] Index of starting pin number is '0000000'
[+] Last State = 'NoAssoc'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'
[+] Rx(  M1  ) = 'EAPFail'   Next pin '64121635'

因此，没有 WPS，或者至少没有 WPS可供攻击。

在启用/禁用状态下进行了测试Wireless --> AOSS（有人报告它可以改变 WPS 状态）：

无论如何，如果您想对WPS Enabled在 Android 上看到的消息保持完全冷静，请按照以下步骤操作：

1.-hostapd.conf在找到你的无线网卡的文件/tmp。我的是：

root@DD-WRT:/tmp# ls /tmp/*hostap.conf -la
-rw-r--r--    1 root     root          580 Dec 15 00:48 /tmp/ath0_hostap.conf

2.- 检查wps_state值：

root@DD-WRT:/tmp# cat ath0_hostap.conf | grep "wps" -i
wps_state=2

笔记：

0表示 WPS 已禁用。
1表示 WPS 已启用。
2表示 WPS 已锁定。

3.-改变将其更改为0。您可以编辑文件。我更喜欢使用命令sed直接2交换0：

/bin/sed s/wps_state\=2/wps_state\=0/g -i /tmp/ath0_hostap.conf

4.- 定位hostapd进程（及其参数）：

root@DD-WRT:/tmp# ps | grep "apd" -i
   60 root         0 SW<  [kswapd0]
 2093 root      1340 S    hostapd -B /tmp/ath0_hostap.conf

5.-终止并重新启动它（具有完全相同的参数）：

root@DD-WRT:/tmp# kill 2093
root@DD-WRT:/tmp# hostapd -B /tmp/ath0_hostap.conf

这就是全部了。
这次是 AirCrack-NG：

luis@Frambuesio:~$ sudo airodump-ng wlan1mon --wps -c 2

 CH  2 ][ Elapsed: 12 s ][ 2015-12-15 00:57

 BSSID              PWR RXQ  Beacons    #Data, #/s  CH  MB   ENC  CIPHER AUTH WPS     ESSID

 00:24:A5:XX:XX:XX  -35 100       50        3    0   2  54e. WPA2 CCMP   PSK          MyWiFiNetWork

 BSSID              STATION            PWR   Rate    Lost    Frames  Probe

可以看出，它显示没有启用 WPS在柱子上。
而且，这一次，Bully-WPS 甚至不会尝试攻击它：

luis@Frambuesio:~$ sudo bully wlan1mon --bssid 00:24:A5:XX:XX:XX -v 3 -c 2
[sudo] password for luis:
[!] Bully v1.0-22 - WPS vulnerability assessment utility
[+] Switching interface 'wlan1mon' to channel '2'
[!] Using '00:1c:f0:9f:fc:84' for the source MAC address
[+] Datalink type set to '127', radiotap headers present
[+] Scanning for beacon from '00:24:a5:XX:XX:XX' on channel '2'
[!] Excessive (3) FCS failures while reading next packet
[!] Excessive (3) FCS failures while reading next packet
[!] Excessive (3) FCS failures while reading next packet
[!] Disabling FCS validation (assuming --nofcs)
[+] Got beacon for 'MyWiFiNetWork' (00:24:a5:XX:XX:XX)
[X] The AP doesn't appear to be WPS enabled (no WPS IE)

所以，最后我们可以说 WPS 是已在 DD-WRT 上禁用路由器。

已使用 Buffalo WHR-HP-GN 进行测试。预计适用于任何型号（请确认）。

更多细节：

只要/tmp目录对应于RAM，这一变化是暂时的，除非你编写脚本每次重启时以任何方式。
在 DD-WRT 论坛上上述提到的主题中，有一些/bin/ps | /bin/grep '[h]ostapd' | /usr/bin/awk -F" " {'print $1'} | /usr/bin/xargs /bin/kill -HUP命令行直接替换了步骤 5。

Answer 1