phpMyAdmin 3.3.5 / 2.11.10 <= Cross Site Scripting (XSS) Vulnerability

By YGN Ethical Hacker Group - 

1. OVERVIEW

The phpMyAdmin web application was vulnerable to Cross Site Scripting vulnerability.


2. PRODUCT DESCRIPTION

phpMyAdmin is a free software tool written in PHP intended to handle the administration of MySQL over the World Wide Web. 
phpMyAdmin supports a wide range of operations with MySQL. 
The most frequently used operations are supported by the user interface (managing databases, tables, fields, relations, 
indexes, users, permissions, etc), while you still have the ability to directly execute any SQL statement. 


3. VULNERABILITY DESCRIPTION

Some URLs in phpMyAdmin do not properly escape user inputs that lead to cross site scripting vulnerability.  
For more information about this kind of vulnerability, see OWASP Top 10 - A2, WASC-8 and 
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').


4. VERSIONS AFFECTED

phpMyAdmin 3.3.5 and lower
phpMyAdmin 2.11.10  and lower


5. PROOF-OF-CONCEPT/EXPLOIT

http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/db_sql.php-01.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/db_sql.php-02.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/db_structure.php-01.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/db_structure.php-02.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/server_databases.php-01.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/server_databases.php-02.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/server_privileges.php-01.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/server_privileges.php-02.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/sql.php-01.jpg
http://yehg.net/lab/pr0js/advisories/phpmyadmin/3.3.5/xss/sql.php-02.jpg

And full list of URLs (of both <probably> unexploitable/exploitable) that fail to html escape user inputs:

UR: http://target/phpmyadmin/db_search.php 
Affected Parameter(s):  field_str 

URL: http://target/phpmyadmin/db_sql.php 
Affected Parameter(s):  QUERY_STRING, delimiter

URL: http://target/phpmyadmin/db_structure.php 
Affected Parameter(s): sort

URL:  http://target/phpmyadmin/js/messages.php
Affected Parameter(s): db

URL: http://target/phpmyadmin/server_databases.php
Affected Parameter(s): sort_by

URL: http://target/phpmyadmin/server_privileges.php
Affected Parameter(s): QUERY_STRING, checkprivs, dbname, pred_tablename, selected_usr[], tablename , username

URL: http://target/phpmyadmin/setup/config.php
Affected Parameter(s): DefaultLang

URL: http://target/phpmyadmin/sql.php
Affected Parameter(s): QUERY_STRING, cpurge, goto, purge, purgekey, table, zero_rows

URL: http://target/phpmyadmin/tbl_replace.php
Affected (Dynamic) Parameter(s): fields[multi_edit][0][f7235a61fdc3adc78d866fd8085d44db], fields_name[multi_edit][0][349e686330723975502e9ef4f939a5ac] 


6. IMPACT

Attackers can compromise currently logged-in user session and inject arbitrary SQL statements (CREATE,INSERT,UPDATE,DELETE) 
via crafted XSS payloads.


7. SOLUTION

Upgrade to phpMyAdmin 3.3.5.1 or 2.11.10.1 


8. VENDOR

phpMyAdmin (http://www.phpmyadmin.net)


9. CREDIT

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


10. DISCLOSURE TIME-LINE

08-09-2010: vulnerability discovered
08-10-2010: notified vendor
08-20-2010: vendor released fix
08-20-2010: vulnerability disclosed


11. REFERENCES

Vendor Advisory URL: http://www.phpmyadmin.net/home_page/security/PMASA-2010-5.php
Original Advisory URL: http://yehg.net/lab/pr0js/advisories/phpmyadmin/[phpmyadmin-3.3.5]_cross_site_scripting(XSS)
XSS FAQ: http://www.cgisecurity.com/xss-faq.html
Previous Release: http://www.phpmyadmin.net/home_page/security/PMASA-2008-5.php
Previous Release: http://www.phpmyadmin.net/home_page/security/PMASA-2008-6.php
OWASP Top 10: http://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project
CWE-79: http://cwe.mitre.org/data/definitions/79.html


#yehg [08-20-2010]

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