`[+] Credits: hyp3rlinx
[+] Website: hyp3rlinx.altervista.org
CF Image Host 1.65 - 1.6.6
Archive download listed as: version 1.65
unzips as imagehost 1.6.6
PHP Command Injection
CF Imagehost allows users who have access to the management area the
ability to write directly to the 'set.php' page under
the /inc directory that stores setting values for the 'Site Title', 'Site
Slogan' etc, this allows a local attacker ability to
inject specially crafted PHP command payloads to execute arbitrary
operating system commands on the victim host. Possibly leading
to privilege escalation, RFI, backdoors etc.. and most likely full
compromise of the affected system or shared environment
PHP Command Injection Exploit code(s):
Under the setting tab we can inject following below PHP code and it will
remain persistent as it is written disk in 'set.php',
afterwards when the victim visits the application and click a tab the
persistent OS command will be executed.
1) navigate to CF image host settings tab
2) click on admin menu on left and enter your passwords DO NOT click 'Save
changes' yet! or you get error message to enter creds
3) now go back to settings tab and click 'General' then inject below PHP
code into the 'Site Title' input field
4) now click 'Save Changes', this code will get stored under /inc
directory within the 'set.php' PHP file.
our PHP injection payload needs the single quotes, double back slashes,
semicolons as described below to correctly escape the syntax
so we do not break the PHP page and cause errors, our extra \\ quoutes and
; gets removed after injection takes place.
'set.php' on line 11 then becomes:
$settings['SET_TITLE'] = '';echo
OR inject CMD to launch chrome.exe etc...
';echo exec("c:\\Program Files
After, click on some tabs above like 'Database' or 'Ban User' and Tada!
this will execute our stored PHP command...
either running calc.exe or launching Google Chrome.
Vendor Notification: NA
November 13, 2015 : Public Disclosure
Local / Remote
Request Method(s): [+] POST
Vulnerable Product: [+] CF Image Host 1.65 - 1.6.6
Vulnerable Parameter(s): [+] 'Site Title', 'Site Slogan' etc..
Affected Area(s): [+] OS
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
The author is not responsible for any misuse of the information contained
herein and prohibits any malicious use of all security related information
or exploits by the author or elsewhere.