Document Title: =============== FCA US LLC UconnectPhone - XFS Attack & XSS Vulnerability Date: ===== 2016-12-15 References: =========== https://www.vulnerability-lab.com/get_content.php?id=2020 VL-ID: ===== 2020 Common Vulnerability Scoring System: ==================================== 3.9 Introduction: ============= This website is operated by FCA US LLC (“FCA US”). FCA US respects the intellectual property rights of others. Materials may be posted and made available on this Website by third parties not within our control. It is our policy not to permit materials known by us to be infringing to remain on the Website and to terminate the accounts of third parties who repeatedly infringe the copyrights of others. (Copy of the Vendor Homepage: http://www.chrysler.com/universal/Copyright.html) Abstract: ========= The vulnerability laboratory core research team discovered a XFS & XSS web vulnerability in the official UconnectPhone System Mobile Device Support web-application. Report-Timeline: ================ 2016-12-15: Public Disclosure (Vulnerability Laboratory) Status: ======== Published Affected Products: ================== FCA US LLC Product: UconnectPhone - Web Application (API) v2016 Q4 Exploitation-Technique: ======================= Remote Severity: ========= Medium Details: ======== A cross site scripting and xfs attack vector web vulnerability has been discovered in the official UconnectPhone System Mobile Device Support web-application. The xfs attack allows remote attackers to inject own malicious script codes to convincing the victim to navigate to a web-page the attacker controls. The attackers page then loads malicious javascript and a html iframe pointing to a legitimate site as source. Once the victim enters the credentials into the legitimate site within the iframe context, the malicious javascript finally steals the keystrokes. The vulnerability is located in the `country` parameter GET method request. Attacker might redirect the victim to a web-page, that automatically downloads some malicious file. The dangerous variant of this attack is that an attacker could also exploit the vulnerability of the software. That especially matches to case scenarios were for example the victim downloads a malicious PDF file and then run into an old and vulnerable version of adobe reader or donwload an apk file that exploits a vulnerability in the android operating system. This scenario would allow an offensive attacker to own the remote computer system of the cars connected like `Chrysler, Dodge, FIAT, Jeep & Ram`, that is used for `Uconnect Access` for the vehicle connectivity system and that runs finally the integrated Android Auto v8.4 Uconnect system. The security risk of the cross frame scripting (XFS) vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 4.3. Successful exploitation of the vulnerability results in session hijacking, persistent phishing attacks, persistent external redirects to malicious sources and persistent manipulation of affected or connected application modules. Request Method(s): [+] GET Vulnerable Parameter(s): [+] country Proof of Concept: ================= For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. The missing of x-frame-options header was detected on the uconnect-phone web-application and there is no protection against external requested sources. --- PoC Session Logs --- Host: www.uconnectphone.com User-Agent: Mozilla/5.0 (Windows NT 6.1; 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 Connection: keep-alive Upgrade-Insecure-Requests: 1 HTTP/1.1 200 OK Accept-Ranges: bytes Content-Type: text/html Transfer-Encoding: chunked Connection: keep-alive PoC: Attack Scheme [Malicious Site + IP Adress/Redirection + File]:=[download] PoC: Exploitation http://www.uconnectphone.com/?region=NAFTA&country= ">&request_locale=en&brand=none&selection=2 PoC: Payload "> --- PoC Session Logs [GET] --- /?region=NAFTA&country=">&request_locale=en&brand=none&selection=2 HTTP/1.1 Host: www.uconnectphone.com User-Agent: Mozilla/5.0 (Windows NT 6.1; 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 Connection: keep-alive Upgrade-Insecure-Requests: 1 HTTP/1.1 200 OK Accept-Ranges: bytes Content-Type: text/html Transfer-Encoding: chunked Connection: keep-alive .. via Browser! http://www.uconnectphone.com/?region=NAFTA&country= ">&request_locale=en&brand=none&selection=2 --- PoC Session Logs [GET] --- /?region=NAFTA&country=">&request_locale=en&brand=none&selection=2 HTTP/1.1 Host: www.uconnectphone.com User-Agent: Mozilla/5.0 (Windows NT 6.1; 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 Connection: keep-alive Upgrade-Insecure-Requests: 1 HTTP/1.1 200 OK Accept-Ranges: bytes Content-Type: text/html Transfer-Encoding: chunked Connection: keep-alive Solution: ========= The Vulnerability it has been patched by FCA Team , Risk: ===== The security risk of the xfs attack and cross site scripting web vulnerability in the web-application is estimated as medium (cvss 3.9) Credits: ======== SaifAllah benMassaoud - FB/WhiteHatSecuri & benmassaou (http://www.vulnerability-lab.com/show.php?user=SaifAllahbenMassaoud) 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 mainly for consequential or incidental 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. Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.evolution-sec.com Section: magazine.vulnerability-lab.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.php Any modified copy or reproduction, including partially usages, of this file, resources or information 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, modify, use or edit our material contact (admin@) to get a ask permission. Copyright © 2016 | Vulnerability Laboratory - [Evolution Security GmbH]™