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CVE-2016-3670 Stored Cross Site Scripting in Liferay CE 1. Vulnerability Properties Title: Stored Cross-Site Scripting Liferay CE CVE ID: CVE-2016-3670 CVSSv3 Base Score: 4.6 (AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N) Vendor: Liferay Inc Products: Liferay Advisory Release Date: 27 May 2016 Advisory URL: https://labs.integrity.pt/advisories/cve-2016-3670 Credits: Discovery by Fernando Câmara <fbc[at]integrity.pt> 2. Vulnerability Summary Liferay is vulnerable to a stored XSS when an user is created with an malicious payload on the FirstName field. The javascript payload is executed when another user tries to use the profile search section. 3. Technical Details An XSS vulnerability was found on the Profile Search functionality, accessible through User -> My Profile -> Search.An attacker can set a malicious javascript payload on hisFirst Name affecting anyone who performs a search using a keyword present on his profile. The exploitation of this vulnerability could lead to an effective way to grab cookies (stealing sessions) from anyone that uses that search component. Exploitation Request: (User Registration with an malicious FirstName field) POST /liferay/web/guest/home?p_p_id=58&p_p_lifecycle=1&p_p_state= maximized&p_p_mode=view&_58_struts_action=%2Flogin%2Fcreate_account Data: _58_firstName=%22%3E%3Cscript%3Ealert%28%27xss%27%29%3C%2 The vulnerability is located on the users.jsp and as shown below the origin is the lack of validation of user input: line 64: <a data-value=”<%= curUserName %>” href=”javascript:;”> 4. Vulnerable Versions < 6.2 CE GA6 5. Solution Update to version 7.0.0 CE RC1 6. Vulnerability Timeline 21/Jan/16 - Bug reported to Liferay 22/Mar/16 – Bug verified by vendor 22/Mar/16 – Bug fixed by vendor 27/May/16 – Advisory released 7. References https://issues.liferay.com/browse/LPS-62387 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3670 |
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