SEC Consult Vulnerability Lab Security Advisory < 20180813-0 > ======================================================================= title: SQL Injection, XSS & CSRF vulnerabilities product: Pimcore vulnerable version: 5.2.3 and below fixed version: 5.3.0 CVE number: CVE-2018-14057, CVE-2018-14058, CVE-2018-14059 impact: High homepage: https://pimcore.com/en found: 2018-06-11 by: T. Silpavarangkura (Office Bangkok) N. Rai-Ngoen (Office Bangkok) SEC Consult Vulnerability Lab An integrated part of SEC Consult Europe | Asia | North America https://www.sec-consult.com ======================================================================= Vendor description: ------------------- "Pimcore is an award-winning consolidated open source enterprise platform for master data management (PIM/MDM), user experience management (CMS/UX), digital asset management (DAM) and eCommerce." Source: https://pimcore.com/en Business recommendation: ------------------------ The vendor provides a patch for most identified issues, but XSS will not be fixed according to the vendor. An in-depth security analysis performed by security professionals is highly advised, as the software may be affected from further security issues. Vulnerability overview/description: ----------------------------------- 1. SQL Injection (CVE-2018-14058) Multiple SQL injection vulnerabilities have been identified in the REST web service API. An attacker who obtains a valid API key that is granted a necessary permission could successfully perform an attack to extract information from the database. 2. Stored Cross-site Scripting (CVE-2018-14059) Multiple stored cross-site scripting vulnerabilities have been identified across multiple functions in the application, which allows an authenticated attacker to insert arbitrary JavaScript code in virtually all text fields and data entries in the application. 3. Cross-site Request Forgery (CVE-2018-14057) Multiple functions in the application are not protected by the existing anti-CSRF token, which allows an attacker to perform a cross-site request forgery attack to at least add, update or delete entries, among other actions. Proof of concept: ----------------- 1. SQL Injection (CVE-2018-14058) The following URLs demonstrate the issue: http://<host>/webservice/rest/asset-count?apikey=[...]&condition=<SQL Injection> http://<host>/webservice/rest/asset-inquire?apikey=[...]&id=<SQL Injection> http://<host>/webservice/rest/asset-list?apikey=[...]&condition=<SQL Injection> http://<host>/webservice/rest/document-count?apikey=[...]&condition=<SQL Injection> http://<host>/webservice/rest/document-inquire?apikey=[...]&id=<SQL Injection> http://<host>/webservice/rest/document-list?apikey=[...]&condition=<SQL Injection> http://<host>/webservice/rest/object-count?apikey=[...]&condition=<SQL Injection> http://<host>/webservice/rest/object-inquire?apikey=[...]&id=<SQL Injection> http://<host>/webservice/rest/object-list?apikey=[...]&condition=<SQL Injection> Note that a valid API key that is granted at least either "Assets", "Documents" or "Objects" permission is required to perform an SQL injection attack against associated API endpoints successfully. 2. Stored Cross-site Scripting (CVE-2018-14059) Most of the text fields in pop-up dialogs and data entries in the application are vulnerable to the cross-site scripting vulnerability, which can be exploited by an authenticated attacker. For example, the attacker could insert an attack payload while performing at least the following actions: 1) Edit a user account's first name/last name/e-mail address. 2) Edit a Document Types/Predefined Properties/Predefined Asset Metadata/ Quantity Value/Static Routes entry value in the table. 3) Rename an Assets/Data Objects/Video Thumbnails/Image Thumbnails/ Field-Collections/Objectbrick/Classification Store item. The vendor stated that many identified XSS issues only affect administrative functions and hence the issues will not be fixed: "They are only affecting administrative functionalities (higher privileges required) - so this isn't used by non-trusted users - a check just adds additional overhead without any benefits for security." SEC Consult argued multiple times that XSS can still be exploited e.g. when a higher privileged user gets attacked and the issues should be fixed nevertheless. 3. Cross-site Request Forgery (CVE-2018-14057) The existing anti-CSRF token in the HTTP request header named "X-pimcore-csrf-token" was found to be validated only in the "Settings > Users / Roles" function. Therefore, an attacker could perform a cross-site request forgery attack against virtually all other functions in order to at least add, update and delete data without having to submit the anti-CSRF token. The non-exhaustive list of affected requests are listed below: POST /admin/asset/add-asset POST /admin/asset/add-asset-compatibility GET /admin/asset/delete GET /admin/asset/import-server GET /admin/asset/import-server-files GET /admin/asset/import-url POST /admin/asset/import-zip POST /admin/asset/update GET /admin/document/add GET /admin/document/delete POST /admin/document/doc-types POST /admin/email/blacklist POST /admin/email/email-logs POST /admin/email/save POST /admin/hardlink/save POST /admin/link/save POST /admin/newsletter/save GET /admin/object/add POST /admin/object/save GET /admin/object/delete POST /admin/page/save POST /admin/settings/metadata POST /admin/settings/properties POST /admin/settings/set-system POST /admin/settings/website-settings POST /admin/snippet/save Vulnerable / tested versions: ----------------------------- The vulnerabilities have been identified in Pimcore version 5.2.3 which was the most current version at the time of discovery. Vendor contact timeline: ------------------------ 2018-06-15: Contacting vendor through https://pimcorehq.wufoo.com/forms/pimcore-security-report 2018-06-18: Vendor provides the fixes of SQL injection and CSRF in the nightly build, but has a problem of reproducing the XSS. 2018-06-18: Contacting vendor to request for a secure channel to provide further details of the XSS. 2018-06-18: Sending the details of the XSS. 2018-06-19: Vendor fixes the SQL injection and only fixes the XSS partially. 2018-06-20: Notifying vendor, that SQL injection and XSS are not properly fixed 2018-06-20: Vendor inquires more details about the XSS. 2018-06-21: Explaining vendor the XSS issues and notifying vendor that the CSRF has been fixed. 2018-06-21: Vendor will discuss the open issues internally. 2018-07-11: Following up vendor regarding the fixes of the open issues. 2018-07-11: Vendor completely fixes the SQL injection, but decides not to fix the XSS in the administrative functions, patch release is planned within the next two weeks 2018-07-20: Vendor provides a patched version 2018-08-13: Public release of security advisory Solution: --------- The vendor has published a new release (version 5.3.0) which fixes most of the identified issues, but not the XSS issues that affect administrative functions: https://pimcore.com/en/download Workaround: ----------- None Advisory URL: ------------- https://www.sec-consult.com/en/vulnerability-lab/advisories/index.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SEC Consult Vulnerability Lab SEC Consult Europe | Asia | North America About SEC Consult Vulnerability Lab The SEC Consult Vulnerability Lab is an integrated part of SEC Consult. It ensures the continued knowledge gain of SEC Consult in the field of network and application security to stay ahead of the attacker. The SEC Consult Vulnerability Lab supports high-quality penetration testing and the evaluation of new offensive and defensive technologies for our customers. Hence our customers obtain the most current information about vulnerabilities and valid recommendation about the risk profile of new technologies. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Interested to work with the experts of SEC Consult? Send us your application https://www.sec-consult.com/en/career/index.html Interested in improving your cyber security with the experts of SEC Consult? Contact our local offices https://www.sec-consult.com/en/contact/index.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mail: research at sec-consult dot com Web: https://www.sec-consult.com Blog: http://blog.sec-consult.com Twitter: https://twitter.com/sec_consult EOF Thongchai Silpavarangkura / @2018