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TITLE:
NanoCMS Information Disclosure and Cross-Site Request Forgery

SECUNIA ADVISORY ID:
SA34709

VERIFY ADVISORY:
http://secunia.com/advisories/34709/

DESCRIPTION:
Justin C. Klein Keane has discovered some vulnerabilities in NanoCMS,
which can be exploited by malicious people to disclose sensitive
information or conduct cross-site request forgery attacks.

1) The application stores e.g. password hashes in the "pagesdata.txt"
file under the "data" directory. This can be exploited to disclose
sensitive information by downloading the files directly.

2) The application 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 the administrator's
password when a logged in administrator views a malicious web  page.

The vulnerabilities are confirmed in version 0.4 stable. Other
versions may also be affected.

SOLUTION:
Restrict access to the "pagesdata.txt" files (e.g. via a .htaccess
file). Do not browse untrusted sites while being logged on to the
application.

PROVIDED AND/OR DISCOVERED BY:
Justin C. Klein Keane

ORIGINAL ADVISORY:
http://archives.neohapsis.com/archives/fulldisclosure/2009-04/0127.html

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