STRUTS2 S2-0 2 0 patch bypass vulnerability-vulnerability warning-the black bar safety net

0×0 0 background Security researchers noted that the Apache Struts2 vulnerability Bulletin S2-0 2 0, in process repair CVE-2 0 1 4-0 0 9 4 bug fixes program vulnerability exists, resulting patch is completely bypassed. 0×0 1 Analysis Struts2 S2-0 2 0 was added .\.|^ class\.. to filter action...

Struts2 Tomcat class. classLoader. resources. dirContext. docBase assign a value to cause a DoS and remote code execution exploit!- Vulnerability warning-the black bar safety net

0x00 background Recently everyone in the play the Struts2 class. classLoader. Official in S-2 0 two vulnerabilities,one commons-fileupload caused by DoS,this is to let cpu slow down,not patching but also doesn't matter. Another one,is class. classLoader allows Object Assignment. See everyone alwa...