### 简要描述: PHPYUN最新版(phpyun_v3.1.0604_gbk)多处SQL注入及越权操作 虽然PHPYUN在注入防御上已经做得很不错了,方的很严格,像吃掉引号,宽字节的基本上很少了,但是不需要跟引号斗争的地方还有很多,得好好检查,好好修复了!!! 这里再来三处SQL注入及越权操作!!! ### 详细说明: 文件/member/model/com.class.php 第一处SQL注入、越权修改企业环境展示信息: ``` function saveshow_action(){ if($_POST['submitbtn']){ $pid=@implode(',',$_POST['id']); $company_show=$this->obj->DB_select_all("company_show","`id` in (".$pid.") and `uid`='".$this->uid."'","`id`"); if($company_show&&is_array($company_show)){ foreach($company_show as $val){ $title=$_POST['title_'.$val['id']]; $this->obj->update_once("company_show",array("title"=>trim($title)),array("id"=>(int)$val['id'])); } $this->obj->ACT_layer_msg("修改成功!",9,"index.php?c=show"); }else{ $this->obj->ACT_layer_msg("非法操作!",3,"index.php"); } }else{ $this->obj->ACT_msg("index.php","非法操作!"); } } ``` 这里的$pid=@implode(',',$_POST['id']); 没有经过引号保护,直接进入DB_select_all,在DB_select_all中也未进行处理: ``` function DB_select_all($tablename, $where = 1, $select = "*") { $cachename=$tablename.$where;...
### 简要描述: PHPYUN最新版(phpyun_v3.1.0604_gbk)多处SQL注入及越权操作 虽然PHPYUN在注入防御上已经做得很不错了,方的很严格,像吃掉引号,宽字节的基本上很少了,但是不需要跟引号斗争的地方还有很多,得好好检查,好好修复了!!! 这里再来三处SQL注入及越权操作!!! ### 详细说明: 文件/member/model/com.class.php 第一处SQL注入、越权修改企业环境展示信息: ``` function saveshow_action(){ if($_POST['submitbtn']){ $pid=@implode(',',$_POST['id']); $company_show=$this->obj->DB_select_all("company_show","`id` in (".$pid.") and `uid`='".$this->uid."'","`id`"); if($company_show&&is_array($company_show)){ foreach($company_show as $val){ $title=$_POST['title_'.$val['id']]; $this->obj->update_once("company_show",array("title"=>trim($title)),array("id"=>(int)$val['id'])); } $this->obj->ACT_layer_msg("修改成功!",9,"index.php?c=show"); }else{ $this->obj->ACT_layer_msg("非法操作!",3,"index.php"); } }else{ $this->obj->ACT_msg("index.php","非法操作!"); } } ``` 这里的$pid=@implode(',',$_POST['id']); 没有经过引号保护,直接进入DB_select_all,在DB_select_all中也未进行处理: ``` function DB_select_all($tablename, $where = 1, $select = "*") { $cachename=$tablename.$where; if(!$row_return=$this->Memcache_set($cachename)){ $row_return=array(); $SQL = "SELECT $select FROM `" . $this->def . $tablename . "` WHERE $where"; $query=$this->db->query($SQL); while($row=$this->db->fetch_array($query)){$row_return[]=$row;} $this->Memcache_set($cachename,$row_return); } return $row_return; } ``` 导致存在SQL注入。 第二处SQL注入、越权删除企业新闻 ``` function news_action(){ $this->public_action(); $where=''; if($_POST['delid'] || $_GET['delid']) { if($_POST['delid'] || $_GET['delid']) { if(is_array($_POST['delid'])) { $delid=@implode(",",$_POST['delid']); $layer_type='1'; }else{ $delid=$_GET['delid']; $layer_type='0'; } $oid=$this->obj->DB_delete_all("company_news","`id` in (".$delid.") and `uid`='".$this->uid."'",""); $oid?$this->layer_msg('删除成功!',9,$layer_type):$this->layer_msg('删除失败!',8,$layer_type); }else{ $this->obj->ACT_layer_msg("请选择您要删除的新闻!",8,$_SERVER['HTTP_REFERER']); } } ``` 这里的$delid=$_GET['delid']; 没有经过引号保护,直接进入了DB_delete_all中 ``` function DB_delete_all($tablename, $where, $limit = 'limit 1'){ $SQL = "DELETE FROM `" . $this->def . $tablename . "` WHERE $where $limit"; $this->db->query("set `sql_mode`=''"); return $this->db->query($SQL); } ``` 导致SQL注入。 又由于,通过截断,修改后面的uid,就可以导致越权操作,删除任意企业用户的企业新闻。 第三处SQL注入、越权删除任意企业用户产品 ``` function product_action() { $this->public_action(); $delid=$_GET['delid']; if($delid){ if(is_array($delid)){ $ids=implode(',',$delid); $layer_type=1; }else{ $ids=$delid; $layer_type=0; } $row=$this->obj->DB_select_all("company_product","`id` in (".$ids.") and `uid`='".$this->uid."'","`pic`"); if(is_array($row)){ foreach($row as $k=>$v){ $this->obj->unlink_pic("..".$v['pic']); } } $oid=$this->obj->DB_delete_all("company_product","`id` in (".$ids.") and `uid`='".$this->uid."'",""); $oid?$this->layer_msg('删除成功!',9,$layer_type,$_SERVER['HTTP_REFERER']):$this->layer_msg('删除失败!',8,$layer_type,$_SERVER['HTTP_REFERER']); } ``` 这里的$delid=$_GET['delid'];$ids=$delid; $ids没有经过引号保护,直接进入SQL语句,导致SQL注入 由于通过截断,修改后面的uid,就可以导致越权操作,删除任意企业用户的企业产品。 ### 漏洞证明: 拿第一处SQL注入、越权修改企业环境展示信息为例: 从代码可以看出,当查询失败时,会返回“非法操作!”: [<img src="https://images.seebug.org/upload/201406/101605075de1056708c72fa872b1f1edd1c23748.png" alt="1.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201406/101605075de1056708c72fa872b1f1edd1c23748.png) 当查询正常时,会返回“修改成功!”: [<img src="https://images.seebug.org/upload/201406/1016052228da846c65a8e57bd76edf1aaa7c1525.png" alt="2.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201406/1016052228da846c65a8e57bd76edf1aaa7c1525.png) [<img src="https://images.seebug.org/upload/201406/10160555aebe788a796d6b47919ed7e9d8d23c4b.png" alt="4.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201406/10160555aebe788a796d6b47919ed7e9d8d23c4b.png) 这里可以看出user()的第一个字符就是r 依次遍历char的值,得到user()=root 其他几处SQL注入漏洞证明验证过程方法见漏洞: [WooYun: PHPYUN最新版多处SQL注入及越权操作](http://www.wooyun.org/bugs/wooyun-2014-064323)