Struts 二的漏洞 与需要版本升级(From Apache官网)

Struts 2的漏洞 与需要版本升级(From Apache官网)

?Struts 2的漏洞原理：

Struts又爆远程代码执行漏洞！在这次的漏洞中，攻击者可以通过操纵参数远程执行恶意代码。Struts?2.3.15.1之前的版本，参数action的值redirect以及redirectAction没有正确过滤，导致ognl代码执行。

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The Struts 2 DefaultActionMapper supports a method for short-circuit navigation state changes by prefixing parameters with "action:" or "redirect:", followed by a desired navigational target expression. This mechanism was intended to help with attaching navigational information to buttons within forms.

In Struts 2 before 2.3.15.1 the information following "action:", "redirect:" or "redirectAction:" is not properly sanitized. Since said information will be evaluated as OGNL expression against the value stack, this introduces the possibility to inject server side code.

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In the Struts Blank App, open following URLs.

Simple Expression - the parameter names are evaluated as OGNL.
It is strongly recommended to upgrade to?Struts 2.3.15.1, which contains the corrected Struts2-Core library.

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from:http://www.cnblogs.com/security4399/?漏洞信息库

from:http://struts.apache.org/release/2.3.x/docs/s2-016.html

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