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ZTE ZXV10 W300 router contains hardcoded credentials

Description

### Overview ZTE ZXV10 W300 router version 2.1.0, and possibly earlier versions, contains hardcoded credentials. ([CWE-798](<http://cwe.mitre.org/data/definitions/798.html>)) ### Description ZTE ZXV10 W300 router contains hardcoded credentials that are useable for the telnet service on the device. The username is "`admin`" and the password is "`XXXXairocon`" where "`XXXX`" is the last four characters of the device's MAC address. The MAC address is obtainable over SNMP with community string `public`. The [vendor has provided a statement](<http://www.kb.cert.org/vuls/id/JALR-9FYNWQ>) about this vulnerability. --- ### Impact A remote unauthenticated attacker may be able to obtain the MAC address of the device and log into the telnet service of the device with hardcoded credentials. --- ### Solution We are currently unaware of a practical solution to this problem. Please consider the following workaround. --- **Restrict Access** Enable firewall rules so the telnet service of the device is not accessible to untrusted sources. Enable firewall rules that block SNMP on the device. --- ### Vendor Information 228886 Filter by status: All Affected Not Affected Unknown Filter by content: __ Additional information available __ Sort by: Status Alphabetical Expand all **Javascript is disabled. Click here to view vendors.** ### ZTE Corporation __ Affected Notified: December 03, 2013 Updated: March 14, 2014 ### Status Affected ### Vendor Statement 'According to the vulnerability found in ZTE ZXV10 W300 router version 2.1.0, a mitigation measure has been adopted in the W300 general frame structure versions after 2011, which means the ZTE ZXV10 W300 router produced since 2011 has closed the telnet default function to avoid the information security incident caused by such vulnerability. If any customer has a special requirement, please follow the instructions in our product manual to open the telnet function, but ZTE will not bear the legal liability for any security incident loss that might be the consequence of this operation. If you have any questions please contact us by calling our 24h service hotline +86-755-26770188.' ### Vendor Information We are not aware of further vendor information regarding this vulnerability. ### CVSS Metrics Group | Score | Vector ---|---|--- Base | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C Temporal | 7.2 | E:POC/RL:W/RC:UC Environmental | 5.4 | CDP:ND/TD:M/CR:ND/IR:ND/AR:ND ### References * <http://cwe.mitre.org/data/definitions/798.html> * <http://wwwen.zte.com.cn/en/products/access/cpe/201302/t20130204_386351.html> ### Acknowledgements Thanks to Cesar Neira for reporting this vulnerability. This document was written by Jared Allar. ### Other Information **CVE IDs:** | [CVE-2014-0329](<http://web.nvd.nist.gov/vuln/detail/CVE-2014-0329>) ---|--- **Date Public:** | 2014-02-03 **Date First Published:** | 2014-02-03 **Date Last Updated: ** | 2014-03-14 20:04 UTC **Document Revision: ** | 12


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