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windows短文件名安全问题 绕过附件收费
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#I10NF6
索马里的海贼
Opened this issue
2019-08-14 14:27
source/class/discuz/discuz_upload.php 136行 ``` function get_target_filename($type, $extid = 0, $forcename = '') { if($type == 'group' || ($type == 'common' && $forcename != '')) { $filename = $type.'_'.intval($extid).($forcename != '' ? "_$forcename" : ''); } else { $filename = date('His').strtolower(random(16)); } return $filename; } ``` 上传附件时保存的文件名前6位为当前"时分秒" 目录为/data/attachment/forum/年月/日/ 附件上传时间帖子中可以直接看到，精确到分 只要爆破秒数就可以下载任意附件  http://example.com/data/attachment/forum/201908/01/084532~1.rar 可任意下载收费附件
source/class/discuz/discuz_upload.php 136行 ``` function get_target_filename($type, $extid = 0, $forcename = '') { if($type == 'group' || ($type == 'common' && $forcename != '')) { $filename = $type.'_'.intval($extid).($forcename != '' ? "_$forcename" : ''); } else { $filename = date('His').strtolower(random(16)); } return $filename; } ``` 上传附件时保存的文件名前6位为当前"时分秒" 目录为/data/attachment/forum/年月/日/ 附件上传时间帖子中可以直接看到，精确到分 只要爆破秒数就可以下载任意附件  http://example.com/data/attachment/forum/201908/01/084532~1.rar 可任意下载收费附件
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