Title: ====== ASTPP VoIP Billing (4cf207a) - Multiple Web Vulnerabilities
Date: ===== 2012-08-17 References: =========== http://www.vulnerability-lab.com/get_content.php?id=687 VL-ID: ===== 687 Common Vulnerability Scoring System: ==================================== 4 Introduction: ============= ASTPP is a billing solution for Freeswitch and Asterisk. It supports pre-paid and post-paid billing with call rating and credit control. It also provides many other features such as calling cards, least cost routing (LCR), did management, resellers, callbacks, etc. ... Customer Account Features Reseller Support Call Rating Capabilities Least Cost & Failover Routing Credit Control DID Mapping Automated Account & Device Management Authentication Calling Cards Vendor Billing Asterisk -Real-time Support ASTPP is able to integrate with OSCommerce to provide a Web store for your users to purchase calling cards and sign up for VoIP accounts. We also support multiple currency for each account type with real-time update using Yahoo Finance (http://finance.yahoo.com/currency-converter). (Copy of the Vendor Homepage: http://www.astpp.org/ ) Abstract: ========= The Vulnerability Laboratory Research Team discovered multiple persistent web vulnerabilities in the ASTPP VoIP (4cf207a) phone billing web application. Report-Timeline: ================ 2011-08-17: Public Disclosure Status: ======== Published Exploitation-Technique: ======================= Remote Severity: ========= High Details: ======== Multiple persistent input validation vulnerabilities are detected in the ASTPP VoIP (4cf207a) phone billing web application. The web vulnerabilities allow remote attackers to implement/inject malicious script code on the application side (persistent). The first persistent web vulnerability is located in the user management (admin) module with the bound vulnerable firstname, lastname & company parameters. The first vulnerability can easily be exploited by customers to execute script code out of the administrator user management module (backend). The customer can register with the malicious values or change the vulnerable values via update profile after successful registration with a non malicious user. The secound and third vulnerabilities are located in the add dids and add trunks module with the bound vulnerable access number, note, trunk name, dialed number mods parameters. The 4th persistent vulnerability is located in the Taxes - Tax Information modules with the bound vulnerable priority & description application parameters. Successful exploitation of the vulnerabilities can lead to session hijacking (manager/admin) or stable (persistent) context manipulation. Exploitation requires low user inter action & low privileged web application user account. Vulnerable Module(s): [+] Account Management [+] DIDs - Add New Your Own DIDs [+] Trunks - Add Trunks [+] Taxes - Tax Information Vulnerable Parameter(s): [+] Firstname, Lastname & Company [+] Access Number & Note [+] Trunk Name, Dialed Number Mods - Actions [+] Priority & Description Affected Section(s): [+] Account Listing - Actions [+] DIDs - Edit Mask Listing [+] Trunks Listing (Management) [+] Tax - Edit Mask Listing Proof of Concept: ================= The persistent vulnerabilities can be exploited by remote attacker with low privileged user account and with low required user inter action. For demonstration or reproduce ... Review: Account Management - User Account Listing <div style="text-align: center; width: 90px; white-space: normal;"><div style="text-align: center; width: 90px; white-space: normal;">venky</div></div></td><td align="center"><div style="text-align: center; width: 90px; white-space: normal;"><div style="text-align: center; width: 90px; white-space: normal;"> "></div></div></td> <td align="center"><div style="text-align: center; width: 90px; white-space: normal;"><div style="text-align: center; width: 90px; white-space: normal;[PERSISTENT INJECTED SCRIPT CODE] "></div></div></td><td align="center"><div style="text-align: center; width: 90px; white-space: normal;"><div style="text-align: center; width: 90px; white-space: normal;"[PERSISTENT INJECTED SCRIPT CODE]></div></div></td><td align="right"><div style="text-align: right; width: 70px; white-space: normal;"><div style="text-align: right; width: 70px; white-space: normal;">0.0000 USD</div></div></td><td align="right"><div style="text-align: right; width: 70px; white-space: normal;"><div style="text-align: right; width: 75px; white-space: normal;">0.0000 USD</div></div></td><td align="center"><div style="text-align: center; width: 70px; white-space: normal;"><div style="text-align: center; width: 70px; white-space: normal;">daily</div></div></td><td align="center"><div style="text-align: center; width: 50px; white-space: normal;"><div style="text-align: center; width: 50px; white-space: normal;">No</div></div></td><td align="center"> <div style="text-align: center; width: 90px; white-space: normal;"><div style="text-align: center; width: 90px; white-space: normal;">Customer</div></div></td><td align="center"><div style="text-align: center; width: 90px; white-space: normal;"> <div style="text-align: center; width: 90px; white-space: normal;">Active</div></div></td><td align="center"><div style="text-align: center; width: 120px; white-space: normal;"><div style="text-align: center; width: 120px; white-space: normal;"><a href="http://demo.astpp.org/accounts/payment_process/asdsadfas%20";><[PERSISTENT INJECTED SCRIPT CODE]"="" "="" class="icon" style="text-decoration:none;background-image:url(/images/payment.png);" rel="facebox" title="ProcessPayment"> &nbsp;</a><a href="http://demo.astpp.org/accounts/account_detail/asdsadfas Review: DIDs <li> <label class="desc">Access Number:</label> <input name="access_number" class="text field medium" size="20" readonly="readonly" type="text"><[PERSISTENT INJECTED SCRIPT CODE]@108.163.242.106"=""></iframe> <input name="id" value="11" type="hidden"> </li> <li> <label class="desc">Note:</label> <input name="note" class="text field medium" size="10" type="text"><[PERSISTENT INJECTED SCRIPT CODE]")' <"=""></iframe> </li> <li> <label class="desc">Status:</label> <select name="status" class="select field medium"> <option value="0" selected="selected">ACTIVE</option> <option value="1">INACTIVE</option> </select> Review: Trunks <td align="center"><div style="text-align: center; width: 329px; white-space: normal;"> <a href="http://demo.astpp.org/lcr/trunks/edit/";><[PERSISTENT INJECTED SCRIPT CODE]"' class="icon" style=" text-decoration:none;background-image:url(/images/page_edit.png);" rel="facebox" title="Update"> </a><a href="/lcr/trunks/delete/"><iframe src=a onload=alert("/" class="icon" style="text-decoration:none;background-image:url(/images/delete.png);" title="Delete" onClick="return get_alert_msg();"> </a></iframe></a></div></td></tr></tbody></table> <div style="display: none;" class="iDiv"></div></div> Review: Taxes <fieldset style="width:585px;"> <legend><span style="font-size:14px; font-weight:bold; color:#000;">Taxes Information</span></legend> <li> <label class="desc">Priority:</label><input class="text field medium" value="0" name="taxes_priority" size="20" type="text"> </li> <li> <label class="desc">Amount:</label><input class="text field medium" value="0.0000" name="taxes_amount" size="20" type="text"> </li> <li> <label class="desc">Rate(%):</label> <input class="text field medium" value="0.0000" name="taxes_rate" size="8" type="text"> </li> <li> <label class="desc">Description:</label> <input class="text field medium" type="text"><[PERSISTENT INJECTED SCRIPT CODE]")' <"="" name="taxes_description" size="8"></iframe> </li> </fieldset> Risk: ===== The security risk of the persistent web vulnerabilities are estimated as high(-). Credits: ======== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (b...@vulnerability-lab.com) Disclaimer: =========== The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases or trade with fraud/stolen material. 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