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Struts2 s2-052 REST²å¼þÔ¶³Ì´úÂëÖ´ÐÐ ÊÖÒÕÆÊÎöÓë·À»¤¼Æ»®

2017-09-07

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2017Äê9ÔÂ5ÈÕ£¬Apache StrutsÐû²¼×îеÄÇ徲ͨ¸æ£¬Apache Struts 2.5.xÒÔ¼°Ö®Ç°µÄ²¿·Ö2.x°æ±¾µÄREST²å¼þ±£´æÔ¶³Ì´úÂëÖ´ÐеĸßΣÎó²î£¬Îó²î±àºÅΪCVE-2017-9805£¨S2-052£©¡£Îó²îµÄ³ÉÒòÊÇÓÉÓÚʹÓÃXStreamHandler·´ÐòÁл¯XStreamʵÀýµÄʱ¼äûÓÐÈκÎÀàÐ͹ýÂ˵¼ÖÂÔ¶³Ì´úÂëÖ´ÐС£

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https://struts.apache.org/docs/s2-052.html

https://cwiki.apache.org/confluence/display/WW/S2-052

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· Struts 2.1.2 – Struts 2.3.33

· Struts 2.5 - Struts 2.5.12

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· Struts 2.3.34

· Struts 2.5.13

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    public void doFilter(ServletRequest request ServletResponse response FilterChain chain)

           throws IOException ServletException {

       if (request.getContentType() != null) {

           String contentType = request.getContentType().toLowerCase(Locale.ENGLISH);

           if (contentType != null && contentType.contains("application/xml")) {

              response.getWriter().write("Reject!");

           } else {

              chain.doFilter(request response);

           }

       } else {

           chain.doFilter(request response);

       }

    }

 

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