SirGod has discovered a security issue and a vulnerability in Ninja Designs Mailist, which can be exploited by malicious people to disclose sensitive information.
1) The application stores backup files with insecure permissions inside the web root. This can be exploited to gain knowledge of sensitive information (e.g. e-mail addresses) by requesting the backup files directly.
2) Input passed to the "load" parameter in send.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal attacks and URL-encoded NULL bytes.
Successful exploitation of this vulnerability requires that "register_globals" is enabled and "magic_quotes_gpc" is disabled.
These vulnerabilities are confirmed in version 3.0. Other versions may also be affected.
Solution: Restrict access to the "backups/" directory (e.g. using a ".htaccess" file).
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Subject: Ninja Designs Mailist Security Issue and Vulnerability
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