RCE Security Advisory https://www.rcesecurity.com 1. ADVISORY INFORMATION ======================= Product: Quest KACE Systems Management Appliance Vendor URL: www.quest.com Type: Cross-Site Scripting [CWE-79] Date found: 2018-09-09 Date published: 2019-05-19 CVSSv3 Score: 4.7 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N) CVE: CVE-2019-11604 2. CREDITS ========== This vulnerability was discovered and researched by Julien Ahrens from RCE Security. 3. VERSIONS AFFECTED ==================== Quest KACE Systems Management Appliance 9.0 and below 4. INTRODUCTION =============== The KACE Systems Management Appliance (SMA) helps you accomplish these goals by automating complex administrative tasks and modernizing your unified endpoint management approach. This makes it possible for you to inventory all hardware and software, patch mission-critical applications and OS, reduce the risk of breach, and assure software license compliance. So you're able to reduce systems management complexity and safeguard your vulnerable endpoints. (from the vendor's homepage) 5. VULNERABILITY DETAILS ======================== The script "/service/kbot_service_notsoap.php" is vulnerable to an unauthenticated reflected Cross-Site Scripting vulnerability when user-supplied input to the HTTP GET parameter "METHOD" is processed by the web application. Since the application does not properly validate and sanitize this parameter, it is possible to place arbitrary script code onto the same page. The following Proof-of-Concept triggers this vulnerability: https://127.0.0.1/service/kbot_service_notsoap.php?METHOD=<script>alert(document.domain)</script> 6. RISK ======= To successfully exploit this vulnerability an unauthenticated or authenticated user must be tricked into visiting an arbitrary website. The vulnerability can be used to temporarily embed arbitrary script code into the context of the appliance web interface, which offers a wide range of possible attacks such as redirecting the user to a malicious page, spoofing content on the page or attacking the browser and its plugins. Since all session-relevant cookies are protected by HTTPOnly, it is not possible to hijack sessions. 7. SOLUTION =========== Update to Quest KACE Systems Management Appliance 9.1 8. REPORT TIMELINE ================== 2018-09-09: Discovery of the vulnerability 2019-02-28: Tried to notify vendor via their vulnerability report form but unfortunately the WAF protecting the form blocked the Proof-of-Concept payload 2019-02-28: Sent another notification without any payloads 2019-02-28: Vendor response 2019-03-01: Sent the exploit payload in a separate mail 2019-03-01: Vendor acknowledges the issue (tracked as K1-20409) which will be fixed in the 9.1 release (released on 2019/04/15) 2019-03-01: Vendor asks to delay the disclosure to make sure all customers had time to upgrade 2019-03-13: Requested disclosure extension granted 2019-04-30: CVE requested from MITRE 2019-04-30: MITRE assigns CVE-2019-11604 2019-05-19: Public disclosure 9. REFERENCES ============= -
