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Message-ID: <001101cc256b$4d9dd720$9b7a6fd5@ml> Date: Wed, 8 Jun 2011 02:32:20 +0300 From: "MustLive" <mustlive@...security.com.ua> To: <submissions@...ketstormsecurity.org>, <full-disclosure@...ts.grok.org.uk> Subject: New vulnerabilities in ADSL modem Callisto 821+ Hello list! I want to warn you about new security vulnerabilities in ADSL modem Callisto 821+ (SI2000 Callisto821+ Router). These are Cross-Site Request Forgery and Cross-Site Scripting vulnerabilities. In April I've already drew attention of Ukrtelecom's representative (and this modem was bough at Ukrtelecom) about multiple vulnerabilities in this model of Callisto modems (and other models also could be affected). SecurityVulns ID: 11700. ------------------------- Affected products: ------------------------- Vulnerable is the next model: SI2000 Callisto821+ Router: X7821 Annex A v1.0.0.0 / Argon 4x1 CSP v1.0 (ISOS 9.0) [4.3.4-5.1]. This model with other firmware and also other models of Callisto also must be vulnerable. ---------- Details: ---------- These attacks should be conducted on modem owner, which is logged into control panel. Taking into account that it's unlikely to catch him in this state, then it's possible to use before-mentioned vulnerabilities (http://websecurity.com.ua/5161/) for conducting of remote login (for logining him into control panel). After that it's possible to conduct CSRF or XSS attack. CSRF (WASC-09): This vulnerability allows to set name for DNS relay local LAN database. This DB will be working only if its name is set (i.e. it's possible to deactivate it if to set empty value). http://websecurity.com.ua/uploads/2011/Callisto%20821+%20CSRF12.html In section Create new DNS relay local LAN database entry (http://192.168.1.1/configuration/create_landb_host.html) via CSRF it's possible to add, edit and delete hosts in this DB. XSS (WASC-08): In above-mentioned form there are 3 persistent XSS vulnerabilities. http://websecurity.com.ua/uploads/2011/Callisto%20821+%20XSS17.html In this case the code will be executed immediately, and also at visiting of page http://192.168.1.1/configuration/dns_relay_landb.html. http://websecurity.com.ua/uploads/2011/Callisto%20821+%20XSS18.html In this case the code will be executed immediately, and also at visiting of pages http://192.168.1.1/system/events.html and http://192.168.1.1/shared/event_log_selection.html. http://websecurity.com.ua/uploads/2011/Callisto%20821+%20XSS19.html In this case the code will be executed immediately, and also at visiting of pages http://192.168.1.1/system/events.html and http://192.168.1.1/shared/event_log_selection.html. In section Create new DNS relay local LAN database entry (http://192.168.1.1/configuration/create_landb_host.html) there are persistent XSS vulnerabilities in all text fields and some hidden fields. ------------ Timeline: ------------ 2011.04.14 - informed Ukrtelecom about multiple vulnerabilities in modems, which they give (sell) to their clients. 2011.06.03 - disclosed at my site. 2011.06.04 - informed developers (Iskratel). I mentioned about these vulnerabilities at my site (http://websecurity.com.ua/5193/). Best wishes & regards, MustLive Administrator of Websecurity web site http://websecurity.com.ua _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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