Verizon Fios Actiontec model MI424WR-GEN3I router vulnerable to cross-site request forgery

Overview

The Verizon FIOS Actiontec router model MI424WR-GEN3I is susceptible to cross-site request forgery attacks. (CWE-352)

Description

The Verizon FIOS Actiontec router model MI424WR-GEN3I is susceptible to cross-site request forgery attacks. (CWE-352) A remote attacker that is able to trick a user into clicking a malicious link while logged into the router may be able to compromise the router.

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Impact

A remote unauthenticated attacker that is able to trick a user into clicking a malicious link while they are logged into the router may be able to compromise the router.

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Solution

We are currently unaware of a practical solution to this problem. Please consider the following workarounds.

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Restrict Access

Verify the router’s web interface is not Internet accessible. As a general good security practice, only allow connections from trusted hosts and networks. Note that restricting access does not prevent CSRF attacks since the attack comes as an HTTP request from a legitimate user’s host. Restricting access would prevent an attacker from accessing the router web interface using stolen credentials from a blocked network location.

Do Not Stay Logged Into the Router’s Management Interface

Always log out of the router’s management interface when done using it.

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Vendor Information

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Verizon Affected

Notified: February 01, 2013 Updated: March 18, 2013

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group	Score	Vector
Base	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P
Temporal	5.5	E:POC/RL:W/RC:UR
Environmental	4.2	CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

• <http://infosec42.blogspot.com/2013/03/verizon-fios-router-csrf-cve-2013-0126.html&gt;
• <http://cwe.mitre.org/data/definitions/352.html&gt;

Acknowledgements

Thanks to Jacob Holcomb of Independent Security Evaluators for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

CVE IDs:	CVE-2013-0126
Date Public:	2013-03-18 Date First Published: