S2-045-EXP-POC-TOOLS

#CNVD-ID CNVD-2017-02474 Release Date 2017-03-07 Hazard Level High (AV:N/AC:L/Au:N/C:C/I:C/A:C) Affected Products Apache Struts >=2.3.5, <=2.3.31 Apache Struts >=2.5, <=2.5.10 CVE ID CVE-2017-5638 Vulnerability Description Apache Struts is an open-source framework for creating enterprise Java web applications. Apache Struts2 has an S2-045 remote code execution vulnerability. Remote attackers can directly take control of the web server by exploiting this vulnerability.

#Vulnerability Type General Software/Hardware Vulnerability

#Reference URL https://cwiki.apache.org/confluence/display/WW/S2-045 Vulnerability Solution Apache Struts official has fixed this vulnerability in the released new versions. Users of the Jakarta Multipart parser module are advised to upgrade to Apache Struts version 2.3.32 or 2.5.10.1: #https://cwiki.apache.org/confluence/display/WW/S2-045

#Summary Possible Remote Code Execution when performing file upload based on Jakarta Multipart parser. Who should read this All Struts 2 developers and users Impact of vulnerability Possible RCE when performing file upload based on Jakarta Multipart parser Maximum security rating High Recommendation Upgrade to Struts 2.3.32 or Struts 2.5.10.1 Affected Software:Struts 2.3.5 - Struts 2.3.31, Struts 2.5 - Struts 2.5.10 Reporter Nike Zheng dot zheng at dbappsecurity dot com dot cn> CVE Identifier CVE-2017-5638 Problem It is possible to perform a RCE attack with a malicious Content-Type value. If the Content-Type value isn't valid an exception is thrown which is then used to display an error message to a user. Solution If you are using Jakarta based file upload Multipart parser, upgrade to Apache Struts version 2.3.32 or 2.5.10.1. You can also switch to a different implementation of the Multipart parser. Backward compatibility No backward incompatibility issues are expected. Workaround Implement a Servlet filter which will validate Content-Type and throw away request with suspicious values not matching multipart/form-data.