Multiple vulnerabilities have been reported in the ZTE ZXDSL 831 II modem, which can be exploited by malicious people to conduct cross-site request forgery attacks, disclose sensitive information, and bypass certain security restrictions.
1) The application's web interface allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to e.g. change an administrator's password by tricking a logged in administrator into visiting a malicious web site.
2) The vulnerability is caused due to the application displaying authentication credentials in the accessaccount.cgi script, which can be exploited to disclose the authentication credentials.
3) The application does not properly restrict access to the accessaccount.cgi script, which can be exploited to change the administrator's password.
The vulnerabilities are reported in version 7.5.0a_Z29_OV. Other versions may also be affected.
Solution: Restrict access to trusted users only. Do not browse untrusted websites or follow untrusted links while logged in to the application.
Provided and/or discovered by: 1-2) Mehdi Boukazoula and Ibrahim Debeche.
3) Nuevo Asesino.
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to email@example.com
Subject: ZTE ZXDSL 831 II Modem Multiple Vulnerabilities
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.