途牛网任意文件上传导致图片存储分站getshell

code 区域

root:x:0:0:root:/root:/bin/bash
 bin:x:1:1:bin:/bin:/sbin/nologin
 daemon:x:2:2:daemon:/sbin:/sbin/nologin
 adm:x:3:4:adm:/var/adm:/sbin/nologin
 lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
 sync:x:5:0:sync:/sbin:/bin/sync
 shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
 halt:x:7:0:halt:/sbin:/sbin/halt
 mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
 news:x:9:13:news:/etc/news:
 uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
 operator:x:11:0:operator:/root:/sbin/nologin
 games:x:12:100:games:/usr/games:/sbin/nologin
 gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
 ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
 nobody:x:99:99:Nobody:/:/sbin/nologin
 nscd:x:28:28:NSCD Daemon:/:/sbin/nologin
 vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
 pcap:x:77:77::/var/arpwatch:/sbin/nologin
 rpc:x:32:32:Portmapper RPC user:/:/sbin/nologin
 mailnull:x:47:47::/var/spool/mqueue:/sbin/nologin
 smmsp:x:51:51::/var/spool/mqueue:/sbin/nologin
 oprofile:x:16:16:Special user account to be used by OProfile:/home/oprofile:/sbin/nologin
 sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
 dbus:x:81:81:System message bus:/:/sbin/nologin
 avahi:x:70:70:Avahi daemon:/:/sbin/nologin
 rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
 nfsnobody:x:4294967294:4294967294:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
 haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
 xfs:x:43:43:X Font Server:/etc/X11/fs:/sbin/nologin
 avahi-autoipd:x:100:104:avahi-autoipd:/var/lib/avahi-autoipd:/sbin/nologin
 hacluster:x:498:496::/var/lib/heartbeat/cores/hacluster:/bin/bash
 www:x:501:501::/home/www:/sbin/nologin
 mysql:x:502:502::/home/mysql:/bin/bash
 nagios:x:503:503::/home/nagios:/bin/bash
 ntp:x:38:38::/etc/ntp:/sbin/nologin
 songqipeng:x:3618:3618::/home/songqipeng:/bin/bash
 chenwei:x:2487:2487::/home/chenwei:/bin/bash
 zabbix:x:2438:504::/home/zabbix:/sbin/nologin
 anzengjun:x:2439:501::/mnt/static/:/sbin/nologin
 xuyong:x:2443:501::/mnt/static/:/sbin/nologin
 zhan:x:2444:501::/mnt/static/:/sbin/nologin
 shechengcheng:x:2446:501::/mnt/static/:/sbin/nologin
 lihaihong:x:2448:501::/mnt/static/:/sbin/nologin
 gengxipeng:x:2449:501::/mnt/static/:/sbin/nologin
 lumeng:x:2450:501::/mnt/static/:/sbin/nologin
 xiaoweixiong:x:2451:501::/mnt/static/:/sbin/nologin
 wutao:x:2452:501::/mnt/static/:/sbin/nologin
 shinan:x:2453:501::/mnt/static/:/sbin/nologin
 chenshihong:x:2454:501::/mnt/static/:/sbin/nologin
 kongxiangpeng:x:2455:501::/mnt/static/:/sbin/nologin
 puppet:x:52:52:Puppet:/var/lib/puppet:/sbin/nologin
 zhuchunye:x:2457:501::/mnt/static/:/sbin/nologin
 libin:x:2870:2870::/home/libin:/bin/bash
 yjsword:x:1158:1158::/home/yjsword:/bin/bash
 huxiaomin:x:3621:501::/mnt/static/:/bin/bash
 liudongli:x:3623:501::/mnt/static/:/sbin/nologin
 niling:x:3624:501::/mnt/static/:/sbin/nologin
 pengjiang:x:3625:10::/home/pengjiang:/bin/bash
 shijie:x:3626:501::/mnt/static/:/sbin/nologin
 lvdi:x:3627:501::/mnt/static/:/sbin/nologin
 shaochunhua:x:3628:501::/mnt/static/:/sbin/nologin