Showing posts with label Privilege Escalation. Show all posts
Showing posts with label Privilege Escalation. Show all posts

Friday, 5 June 2015

ESPN espn.go.com Login & Register Page XSS and Dest Redirect Privilege Escalation Web Security Vulnerabilities





ESPN espn.go.com Login & Register Page XSS and Dest Redirect Privilege Escalation Web Security Vulnerabilities




Domain:
http://espn.go.com/



"ESPN (originally an acronym for Entertainment and Sports Programming Network) is a U.S.-based global cable and satellite television channel that is owned by ESPN Inc., a joint venture between The Walt Disney Company (which operates the network, through its 80% controlling ownership interest) and Hearst Corporation (which holds the remaining 20% interest). The channel focuses on sports-related programming including live and recorded event telecasts, sports news and talk shows, and other original programming.

ESPN broadcasts primarily from studio facilities located in Bristol, Connecticut. The network also operates offices in Miami, New York City, Seattle, Charlotte, and Los Angeles. John Skipper currently serves as president of ESPN, a position he has held since January 1, 2012. While ESPN is one of the most successful sports networks, it has been subject to criticism, which includes accusations of biased coverage, conflict of interest, and controversies with individual broadcasters and analysts. ESPN headquarters in Bristol, Connecticut. As of February 2015, ESPN is available to approximately 94,396,000 paid television households (81.1% of households with at least one television set) in the United States. In addition to the flagship channel and its seven related channels in the United States, ESPN broadcasts in more than 200 countries, operating regional channels in Australia, Brazil, Latin America and the United Kingdom, and owning a 20% interest in The Sports Network (TSN) as well as its five sister networks and NHL Network in Canada."(Wikipedia)








Vulnerability description:

Espn.go.com has a cyber security bug problem. It is vulnerable to XSS (Cross Site Scripting) and Dest Redirect Privilege Escalation (Open Redirect) attacks.

Those vulnerabilities are very dangerous. Since they happen at ESPN's "login" & "register" pages that are credible. Attackers can abuse those links to mislead ESPN's users. The success rate of attacks may be high.

During the tests, besides the links given above, large number of ESPN's links are vulnerable to those attacks.


The programming code flaw occurs at "espn.go.com"'s "login?" & "register" pages with "redirect" parameter, i.e.


Tests were performed on Firefox (33.0) in Ubuntu (14.04) and IE (8.0. 7601) in Windows 8.

Disclosed by:
Wang Jing, Division of Mathematical Sciences (MAS), School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore.  (@justqdjing)




"The Full Disclosure mailing list is a public forum for detailed discussion of vulnerabilities and exploitation techniques, as well as tools, papers, news, and events of interest to the community. FD differs from other security lists in its open nature and support for researchers' right to decide how to disclose their own discovered bugs. The full disclosure movement has been credited with forcing vendors to better secure their products and to publicly acknowledge and fix flaws rather than hide them. Vendor legal intimidation and censorship attempts are not tolerated here!" A great many of the fllowing web securities have been published here, Injection, Broken Authentication and Session Management, Cross-Site Scripting (XSS), Insecure Direct Object References, Security Misconfiguration, Sensitive Data Exposure, Missing Function Level Access Control, Cross-Site Request Forgery (CSRF), Using Components with Known Vulnerabilities, Unvalidated Redirects and Forwards. It also publishes suggestions, advisories, solutions details related to XSS and Open Redirect vulnerabilities and cyber intelligence recommendations.




(1) XSS Web Security Vulnerability

XSS may allow a remote attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and the server. Base on Acunetix, exploited XSS is commonly used to achieve the following malicious results

  • Identity theft
  • Accessing sensitive or restricted information
  • Gaining free access to otherwise paid for content
  • Spying on user’s web browsing habits
  • Altering browser functionality
  • Public defamation of an individual or corporation
  • Web application defacement
  • Denial of Service attacks





Vulnerable URLs:



POC:
















(2) Dest Redirect Privilege Escalation Vulnerability Web Security Vulnerability

From OWASP, an open redirect is an application that takes a parameter and redirects a user to the parameter value without any validation. This vulnerability is used in phishing attacks to get users to visit malicious sites without realizing it. This could allow a user to create a specially crafted URL, that if clicked, would redirect a victim from the intended legitimate web site to an arbitrary web site of the attacker's choosing. Such attacks are useful as the crafted URL initially appear to be a web page of a trusted site. This could be leveraged to direct an unsuspecting user to a web page containing attacks that target client side software such as a web browser or document rendering programs.



Use one of webpages for the following tests. The webpage address is "https://computerpitch.wordpress.com/". Suppose that this webpage is malicious.



The vulnerabilities can be attacked without user login. Tests were performed on Microsoft IE (10.0.9200.16750) of Windows 8, Mozilla Firefox (34.0) & Google Chromium 39.0.2171.65-0 ubuntu0.14.04.1.1064 (64-bit) of Ubuntu (14.04)，Apple Safari 6.1.6 of Mac OS X Lion 10.7. 





(2.1) Login Page  Dest Redirect Privilege Escalation Vulnerability


Vulnerable URL 1:

POC:


Vulnerable URL 2:

POC:





(2.2) Vulnerabilities Attacked without User Login

Vulnerable URL 1:

POC:



This vulnerability was used to demonstrate "Covert Redirect" of Facebook,


Poc Video:

Blog Detail:




Vulnerable URL 2:

POC:





Vulnerable URL 3:

POC:












(3) Those security problems were reported to ESPN in early 2014. However, they are still unpatched.









http://securityrelated.blogspot.com/2014/12/espn-espngocom-login-register
http://diebiyi.com/articles/security/espn-xss-open-redirect/
https://infoswift.wordpress.com/2014/12/30/espn-are-suffering-serious-xss-and-dest
http://webcabinet.tumblr.com/post/118510631147/espn-are-suffering-serious-xss
https://www.facebook.com/permalink.php?story_fbid=435630669942495
http://guyuzui.lofter.com/post/1ccdcda4_6e6b17e
http://mathswift.blogspot.com/2015/05/espn-are-suffering-serious-xss-and-dest.html
http://inzeed.tumblr.com/post/120775132901/espn-xss-open-redirect
http://www.tetraph.com/blog/computing-science/espn-xss-open-redirect/






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Tuesday, 10 February 2015

CVE-2014-7294 NYU Opensso Integration Open Redirect Security Vulnerability

















CVE-2014-7294 NYU OpenSSO Integration 2.1 Dest Privilege Escalation Web Security Vulnerability



Exploit Title: NYU OpenSSO Integration Logon Page url Parameter Open Redirect
Product: OpenSSO Integration
Vendor: NYU
Vulnerable Versions: 2.1 and probability prior
Tested Version: 2.1
Advisory Publication: December 14, 2014
Latest Update: January 05, 2015
Vulnerability Type: Open Redirect [CWE-601]
CVE Reference: CVE-2014-7294
mpact CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.4 (MEDIUM) (AV:N/AC:L/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore: 4.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification
Discover and Writer: Jing Wang [School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore] (@justqdjing)








Suggestion Details:
(1) Vendor & Product Description:


Vendor:
NYU


Product & Vulnerable Versions:
OpenSSO Integration 
2.1


Vendor URL & Download:
OpenSSO Integration can be obtrained from here,


Product Description:
"NYU has integrated PDS with Sun's OpenSSO Identity Management application. The PDS/OpenSSO integration uses PDS as the NYU Libraries' single sign-on system and leverages NYU's OpenSSO system to provide seamless interaction between library applications and university services. The integration merges patron information from OpenSSO (e.g. name, email, e-resources access) with patron information from Aleph (e.g. borrower status and type) to ensure access to the multitude of library services."

"The NYU Libraries operate in a consortial environment in which not all users are in OpenSSO and not all OpenSSO users are in Aleph. PDS is hosted in an active/passive capacity on our Primo front-end servers. Due to the nature of PDS and Aleph, patrons are required to have an Aleph account in order to login to the library's SSO environment. The exception to this rule is EZProxy."

"Author: Scot Dalton
Additional author(s):
Institution: New York University
Year: 2009
License: BSD style
Short description: Use, modification and distribution of the code are permitted provided the copyright notice, list of conditions and disclaimer appear in all related material.
Link to terms: [Detailed license terms]"





(2) Vulnerability Details:

NYU Opensso Integration web application has a computer security bug problem. It can be exploited by Unvalidated Redirects and Forwards (URL Redirection) attacks. This could allow a user to create a specially crafted URL, that if clicked, would redirect a victim from the intended legitimate web site to an arbitrary web site of the attacker's choosing. Such attacks are useful as the crafted URL initially appear to be a web page of a trusted site. This could be leveraged to direct an unsuspecting user to a web page containing attacks that target client side software such as a web browser or document rendering programs.

Other similar products 0day vulnerabilities have been found by some other bug hunter researchers before. NYU has patched some of them. Web Security Watch is an aggregator of security reports coming from various sources. It aims to provide a single point of tracking for all publicly disclosed security issues that matter. "Its unique tagging system enables you to see a relevant set of tags associated with each security alert for a quick overview of the affected products. What's more, you can now subscribe to an RSS feed containing the specific tags that you are interested in - you will then only receive alerts related to those tags." It has published suggestions, advisories, solutions details related to website vulnerabilities.


(2.1) The vulnerability occurs at "PDS" service's logon page, with "&url" parameter.









References:





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