Some vulnerabilities have been discovered in aflog, which can be exploited by malicious users to conduct script insertion attacks, and by malicious people to conduct SQL injection attacks and to bypass certain security restrictions.
1) Input passed to the "id" parameter in comments.php and view.php is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
Successful exploitation of this vulnerability requires that "magic_quotes_gpc" is disabled.
2) Input passed to the "text" parameter in comments.php is not properly sanitised before being stored. This can be exploited to insert arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when the malicious comment is viewed.
Successful exploitation of this vulnerability requires valid user credentials.
3) A vulnerability is caused due to the application allowing access to the admin interface by checking if certain cookies exist. This can be exploited to gain administrative access to the application by creating cookies "aflog_auth_a" with the value "0" and "aflog_auth_i" with the value "1".
The vulnerabilities are confirmed in version 1.01. Other versions may also be affected.
Solution: Edit the source code to ensure that input is properly sanitised.
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Subject: aflog Multiple Vulnerabilities
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