Document Title: =============== Adobe Systems - Arbitrary Code Injection Vulnerability References (Source): ==================== https://www.vulnerability-lab.com/get_content.php?id=2120 PSIRT ID: 7873 Vulnerability Magazine: https://www.vulnerability-db.com/?q=articles/2018/07/19/hacker-injects-arbitrary-codes-main-lead-database-adobe-systems Acknowledgements: (Industry Partners) https://helpx.adobe.com/security/acknowledgements.html Release Date: ============= 2018-07-19 Vulnerability Laboratory ID (VL-ID): ==================================== 2120 Common Vulnerability Scoring System: ==================================== 6.4 Vulnerability Class: ==================== Multiple Current Estimated Price: ======================== 5.000€ - 10.000€ Product & Service Introduction: =============================== Adobe Systems Incorporated commonly known as Adobe, is an American multinational computer software company. The company is headquartered in San Jose, California, United States. Adobe has historically focused upon the creation of multimedia and creativity software products, with a more recent foray towards rich Internet application software development. It is best known for Photoshop, an image editing software, Acrobat Reader, the Portable Document Format (PDF), and Adobe Creative Suite, as well as its successor, Adobe Creative Cloud. (COpy of the Homepage: https://en.wikipedia.org/wiki/Adobe_Systems ) Abstract Advisory Information: ============================== The vulnerability laboratory core research team discovered arbitrary code execution vulnerability in the Adobe Systems main lead database management system. Vulnerability Disclosure Timeline: ================================== 2018-02-05: Researcher Notification & Coordination (Security Researcher) 2018-02-08: Vendor Notification (Adobe PSIRT - Security Department) 2018-02-12: Vendor Response/Feedback (Adobe PSIRT - Security Department) 2018-02-16: Reporter Response/Feedback #1 (Security Researcher) 2018-02-27: Reporter Response/Feedback #2 (Security Researcher) 2018-03-04: Reporter Response/Feedback #3 (Security Researcher) 2018-06-14: Vendor Fix/Patch (Adobe Service Developer Team) 2018-06-15: Security Acknowledgements (Adobe PSIRT - Security Department) 2018-06-19: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== Adobe Systems Product: Main Lead DBMS - *.adobesystems.com 2018 Q2 Exploitation Technique: ======================= Remote Severity Level: =============== High Authentication Type: ==================== Pre auth - no privileges User Interaction: ================= Low User Interaction Disclosure Type: ================ Responsible Disclosure Program Technical Details & Description: ================================ The vulnerability laboratory core research team discovered an arbitrary code injection vulnerability in the adobe systems main lead database management system. The issue allows remote attackers to inject own malicious script codes and system specific codes with persistent attack vector to the application-side of the vulnerable modules context or affected internal services. The arbitrary code injection vulnerability is located in the external services associated with the content of adobe systems subdomain services. Attackers are able to attack the adobe system's lead database by inserting arbitrary code over other database layers. This issue allows an attacker to perform the injection using an external service form. After the content has been delivered, the data is stored in the sub-service database management system. Over time, the database contents of the sub services are backed up and synchronized with the main database of the adobe systems. In the case of our research, we identified several external services to attack the sub-services of the adobe system and finally deliver the faulty content within the main lead database. The injection points are the external services. The exeuction points are located in the backend when processing to manage the contents and when the content is delivered through the main lead database to other customers or business clients (commercials, mailing and notify). The vulnerable domain that executed the contents are adobesystems.com and info.adobesystems.com. The request method to inject is POST and the attack vector is located on the application-sideof adobe-systems. To register and send an email no user account is required. Successful exploitation of the arbitrary code injection vulnerability results in malformed dbms injects, dbms compromise, session hijacking, persistent phishing attacks, persistent external redirects to malicious source and manipulation of affected or connected application modules. Vulnerable Micro Service(s): [+] apps.enterprise.adobe.com [+] offflivestream.creativecloud.adobeevents.com/ [+] summit-emea.adobe.com Vulnerable Sub Service(s): [+] landing.adobe.com [+] offers.adobe.com [+] sstats.adobe.com/b/ss/adbadobefaasprod,adbadobeglobalapp/1/JS-2.5.0/s3118621512273 Request Method(s): [+] POST Vulnerable File(s): [+] m.jsp [+] adobe_econsultancy_digital_trends_2017.html [+] submit.html [+] form.html Parameter(s): [+] firstname [+] lastname [+] companyname Affected Domain(s): [+] adobe.com [+] info.adobesystems.com [+] t.info.adobesystems.com [+] m.info.adobesystems.com [+] t-info.mail.adobe.com Proof of Concept (PoC): ======================= The arbitrary code injection vulnerability can be exploited by remote attackers without privileged user account and with low user interaction. For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. 1. PoC: Injection Points External https://apps.enterprise.adobe.com/faas/service/3.0.0/submit https://offflivestream.creativecloud.adobeevents.com/register/registration/form https://summit-emea.adobe.com/emea/registration/?sdid=ZFN4FLWT&mv=email 2. PoC: Followed Sub Systems http://landing.adobe.com/ https://offers.adobe.com/de/de/marketing/landings/digitale_trends_2017.html https://offers.adobe.com/de/de/marketing/offers/adobe_econsultancy_digital_trends_2017.html http://t-info.mail.adobe.com/r/?id=t3100ff18,90990a66,90990bea https://sstats.adobe.com/b/ss/adbadobefaasprod,adbadobeglobalapp/1/JS-2.5.0/s3118621512273 3. PoC: Execution Points https://www.adobe.com/de/modal-offers/how-to-data-to-customer-intelligence.html http://t.info.adobesystems.com//r/?id=h70201f92,8cea7339,8cea733a http://t.info.adobesystems.com//r/?id=h70201f92,8cea7339,8cea7343&p1=%40HeFLnKJ3LTguSxrRQIi3boBCMRBrTTbGPcHOK%2F%2BwiM4%3D Note: The following example shows 1. Enterprise to stats adobe 2. After that occurs a sync to the sub domain service 3. Then the data is merged to the info adobe service 4. Some sync and backups later the content is inside the main lead database --- PoC Session Logs (POST Inject)--- Status: 200[OK] GET 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mbox=session#e0102d4d21d34f458792072e649f04fb#1518953608|PC#e0102d4d21d34f458792072e649f04fb.26_15#1582196548; sfdc_session=-; TID=-F4KHZX38-; Fb-Syc=1; AAMC_adobe_0=REGION%7C6; s_sq=%5B%5BB%5D%5D; faas_form_1_hash=ff01e8531641c6ec1bcec21c031b44eb; faas_form_1_status=completed] Connection[keep-alive] Response Header: Server[Omniture DC/2.0.0] Access-Control-Allow-Origin[*] X-C[ms-5.6.0] ETag["5A895DF8-68DE-70672227"] Vary[*] P3P[CP="This is not a P3P policy"] xserver[www28] Content-Length[6393] Keep-Alive[timeout=15] Connection[Keep-Alive] Content-Type[application/x-javascript] Vulnerable Source: Service Email #1 (Test) <tbody><tr><td class="mobile-spacer" style="width:60px;" width="60"> </td> <td class="headline" style="color:#2F303D; font-family:serenity, Helvetica Neue, Helvetica, Verdana, Arial, sans-serif; font-size:30px; line-height:25px; padding-top:40px;" align="center"><strong>RAGEN SIE HERAUS MIT GROSSARTIGEN ERLEBNISSEN.</strong></td> <td class="mobile-spacer" style="width:60px;" width="60"> </td></tr> <tr><td class="mobile-spacer" style="width:60px;" width="60"> </td> <td style="color:#2F303D; font-family:adobe-clean, Helvetica Neue Light, Helvetica Light, Helvetica, Verdana, Arial, sans-serif; font-size:16px; font-weight:100; line-height:19px; padding-top:12px;" align="center">Sehr geehrter Herr "<[PAYLOAD EXECUTION POINT FIRSTNAME & LASTNAME])" <,<br=""><br>das Erlebnis wächst sich gerade zum wichtigsten Faktor bei der Kundenbindung aus. Erlebnisse, die persönlich, begeisternd und konsistent auf jedem Kanal und Endgerät sind – das ist jetzt Ihr größter Wettbewerbsvorteil. <br><br>Besuchen Sie unseren Adobe Summit EMEA 2018. Erleben Sie bei uns, was es für außergewöhnliche digitale Erlebnisse wirklich braucht. Erfahren Sie von Unternehmen wie <strong>Sky, DHL</strong> oder <strong>Raiffeisen</strong>, wie sie diese neuartigen Erlebnis-Angebote realisiert haben, die ihre Geschäftsmodelle heute bereits von der Konkurrenz abheben. Vulnerable Source: Service Email #2 (Test) <td class="mobile" style="display: none; max-height:0; font-size:0; height:0;padding:0;margin:0;width:0;" valign="top"> <a href="http://t.info.adobesystems.com//r/?id=h545ac15,8dd8df42,8dd8df46&p1=7011O000002bSn9QAE&p2=0031400002mfNt5AAE"; target="_blank" style="color:#0099ff;"><img class="mobile-image" alt="Weil wir innovativ bleiben, liegen wir weiterhin vorne." src="https://www.adobe.com/content/dam/acom/fr/solutions/digital-marketing/events/images/other/49460e.de.because-we-keep-innovating-we-keep-leading.640x597.jpg"; style="vertical-align:top; overflow:hidden;display:none;visibility:hidden;width:0;max-height:0;" width="320" vspace="0" hspace="0" height="340" border="0"> </a> </td> <!--<![endif]--> </tr> </tbody></table> </td> </tr> <tr> <td class="mobile-padding" style="padding-left:30px;padding-right:30px;padding-top:14px;" valign="top" bgcolor="#000000"> <table style="mso-cellspacing: 0px; mso-padding-alt: 0px 0px 0px 0px; width:100%;" width="100%" cellspacing="0" cellpadding="0" border="0"> <tbody><tr> <td class="mobile-text" style="color:#ffffff; font-family:Arial, Helvetica, sans-serif; font-size:12px; line-height:18px; padding-top:12px;" valign="top"> Sehr geehrter Herr "%20"[PAYLOAD EXECUTION POINT FIRSTNAME & LASTNAME],<br=""><br>Forrester stuft Adobe als Leader bei Web-Analysen ein. Lesen Sie in <i>The Forrester Wave<sup style="line-height:95%;">â„¢</sup>: Web Analytics, Q4 2017</i>, weshalb wir weiter den Ton angeben – mit aussagekräftigen und verwertbaren Einblicken für alle Mitarbeiter im Unternehmen. </tr> Reference(s): https://www.adobe.com http://t.info.adobesystems.com http://m.info.adobesystems.com https://offers.adobe.com https://sstats.adobe.com https://apps.enterprise.adobe.com http://landing.adobe.com http://t-info.mail.adobe.com https://offflivestream.creativecloud.adobeevents.com https://summit-emea.adobe.com Solution - Fix & Patch: ======================= 1. Restrict and filter the input fields and disallow usage of script code tags for inputs 2. Encode the context of the input fields during the post method request submit to prevent malformed injects 3. Parse the firstname and lastname and company values in outgoing emails with all adobe service templates 4. Implement a filter mechanism with exception-handling to parse contents delivered from an external service to the sub-service followed by the main lead database 5. Provide awareness to employees by explaining the specific impact of the attack points to prevent the manual delivery 6. Develop a process to remove compromised information from the main database or backups 7. Ensure that a web-firewall captures those incidents to alert or react to ensure that an attacker is not able to move through the separate database segments The reported urls has been reported and disarmed already by the adobe systems psirt and developer team. The issue has been patched in multiple functions. The forumulars are already restricted and the case scenario has been full transparent delivered to ensure the problematic becomes visible to adobe. (Example: http://t.info.adobesystems.com//r/?id=h70201f92,8cea7339,8cea7343&p1=%40HeFLnKJ3LTguSxrRQIi3boBCMRBrTTbGPcHOK%2F%2BwiM4%3D) Security Risk: ============== The security risk of the arbitrary code injection vulnerability in the adobe web services are estimated as high. Credits & Authors: ================== Benjamin K.M. (Vulnerability Laboratory Core Research Team)[research@xxxxxxxxxxxxxxxxxxxxx] - https://www.vulnerability-lab.com/show.php?user=Benjamin+K.M. 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 Labs or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability mainly for incidental or consequential damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any licenses, policies, deface websites, hack into databases or trade with stolen data. We have no need for criminal activities or membership requests. We do not publish advisories or vulnerabilities of religious-, militant- and racist- hacker/analyst/researcher groups or individuals. We do not publish trade researcher mails, phone numbers, conversations or anything else to journalists, investigative authorities or private individuals. 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