Julien Cayssol has reported some vulnerabilities in Artica, which can be exploited by malicious users to disclose sensitive information, manipulate certain data, and bypass certain security restrictions and by malicious people to conduct cross-site scripting attacks, SQL injection attacks, and disclose sensitive information.

1) Input passed via the "mailattach" parameter to images.listener.php and the is not properly verified before being used to read files. This an be exploited to download arbitrary files from local resources via directory traversal sequences.

2) Input passed via e.g. the "ajax-events" parameter to artica.update.php is not properly verified before being used in the "artica_update_query_logs()" function in framework/cmd.php to read files. This can be exploited to read arbitrary files from local resources via directory traversal sequences.

3) Input passed via e.g. the "create-subdir" parameter to share-a-folder.php is not properly verified before being used in the "directory_create_user()" function in framework/cmd.php to create directories. This can be exploited to create arbitrary directories on the server.

4) Input passed via the "ShowID" parameter to artica.events.php is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

5) The application does not properly restrict access to certain log files and stats files. This can be exploited to view the logs and stats via e.g. postfix.events.php, logs/php.log, cgi-bin/awstats.pl, server-status, and server-config.

6) An error in the handling of access permissions in tree.php can be exploited to e.g. display the directory structure.

7) Certain unspecified input is not properly sanitised in a search function before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerabilities are reported in version 1.4.090119. Other versions may also be affected.

Solution
The vulnerabilities are fixed in nightly build 1.4.092921.

Provided and/or discovered by
Julien Cayssol

Original Advisory
http://www.artica.fr/index.php/get-a-download-artica/nightly-builds

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