CVE-2013-2251 / Struts远程代码执行漏洞预警

Struts又爆远程代码执行漏洞了!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。

描述

影响版本 Struts 2.0.0 - Struts 2.3.15

报告者 Takeshi Terada of Mitsui Bussan Secure Directions, Inc.

CVE编号 CVE-2013-2251
漏洞原理

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.
在阿里云上正在使用Struts的朋友，尽快升级到最新版。