Showing posts with label Web Security. Show all posts
Showing posts with label Web Security. Show all posts

Tuesday, 3 November 2015

TeleGraph All Photo (Picture) Pages Have Been Vulnerable to XSS Cyber Attacks

TeleGraph All Photo (Picture) Pages Have Been Vulnerable to XSS Cyber Attacks


Website Description:
http://www.telegraph.co.uk


"The Daily Telegraph is a British daily morning English-language broadsheet newspaper, published in London by Telegraph Media Group and distributed throughout the United Kingdom and internationally. The newspaper was founded by Arthur B. Sleigh in June 1855 as The Daily Telegraph and Courier, and since 2004 has been owned by David and Frederick Barclay. It had a daily circulation of 523,048 in March 2014, down from 552,065 in early 2013. In comparison, The Times had an average daily circulation of 400,060, down to 394,448. The Daily Telegraph has a sister paper, The Sunday Telegraph, that was started in 1961, which had circulation of 418,670 as of March 2014. The two printed papers currently are run separately with different editorial staff, but there is cross-usage of stories. News articles published in either, plus online Telegraph articles, may also be published on the Telegraph Media Group's www.telegraph.co.uk website, all under The Telegraph title." (From Wikipedia)




(1) Vulnerability Description:
Telegraph has a Web security bug problem. It is vulnerable to XSS attacks. In fact, all its photo pages are vulnerable to XSS (Cross-Site Scripting) vulnerabilities. Telegraph's picture pages use "&frame" as its parameter. All its web pages use "&frame" are vulnerable to the bugs. Those vulnerabilities have been patched now.


Examples of Vulnerable Links:



POC Code:


The vulnerability can be attacked without user login. Tests were performed on Firefox (37.02) in Ubuntu (14.04) and IE (8.0. 7601) in Windows 7. The bugs found by using CSXDS.


































































 







(2) XSS Description:
The description of XSS is: "Cross-Site Scripting (XSS) attacks are a type of injection, in which malicious scripts are injected into otherwise benign and trusted web sites. XSS attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user. Flaws that allow these attacks to succeed are quite widespread and occur anywhere a web application uses input from a user within the output it generates without validating or encoding it." (OWSAP)




Poc Video:





Blog Details:





(3) Vulnerability Disclosure:
Those vulnerabilities are patched now.





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










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Sunday, 30 August 2015

Winmail Server 4.2 Reflected XSS (Cross-site Scripting) Web Application 0-Day Security Bug

Winmail Server 4.2 Reflected XSS (Cross-site Scripting) Web Application 0-Day Security Bug




Exploit Title: Winmail Server badlogin.php &lid parameter Reflected XSS Web Security Vulnerability

Product: Winmail Server

Vendor: Winmail Server

Vulnerable Versions: 4.2   4.1

Tested Version: 4.2   4.1

Advisory Publication: August 24, 2015

Latest Update: August 30, 2015

Vulnerability Type: Cross-Site Scripting [CWE-79]

CVE Reference:

Impact CVSS Severity (version 2.0):

CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 8.6

CVSS Version 2 Metrics:

Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism

Access Complexity: Medium

Authentication: Not required to exploit

Impact Type: Allows unauthorized modification

Discover and Reporter: Wang Jing [School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore] (@justqdjing)











 






 

























Caution Details:



(1) Vendor & Product Description:



Vendor:

Winmail Server




Product & Vulnerable Versions:

Winmail Server

4.2   4.1




Vendor URL & Download:

Product can be obtained from here,






Product Introduction Overview:

"Winmail Server is an enterprise class mail server software system offering a robust feature set, including extensive security measures. Winmail Server supports SMTP, POP3, IMAP, Webmail, LDAP, multiple domains, SMTP authentication, spam protection, anti-virus protection, SSL security, Network Storage, remote access, Web-based administration, and a wide array of standard email options such as filtering, signatures, real-time monitoring, archiving, and public email folders. Winmail Server can be configured as a mail server or gateway for ISDN, ADSL, FTTB and cable modem networks, beyond standard LAN and Internet mail server configurations."









(2) Vulnerability Details:

Winmail Server web application has a computer security problem. Hackers can exploit it by reflected XSS cyber attacks. This 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.


Several other similar products 0-day vulnerabilities have been found by some other bug hunter researchers before. Winmail Server has patched some of them. "scip AG was founded in 2002. We are driven by innovation, sustainability, transparency, and enjoyment of our work. We are completely self-funded and are thus in the comfortable position to provide completely independent and neutral services. Our staff consists of highly specialized experts who focus on the topic information security and continuously further their expertise through advanced training". Scip has recorded similar XSS bugs, such as scipID 26980.




(2.1) The code flaw occurs at "&lid" parameter in "badlogin.php" page. In fact, CVE-2005-3692 mentions that "&retid" parameter in "badlogin.php" page is vulnerable to XSS attacks. But it does not mention "&lid" parameter". The scipID of the bug is 26980. Bugtraq (SecurityFocus) ID is 15493. OSVDB ID is 20926.




References: 
http://seclists.org/oss-sec/2015/q3/459 
http://www.tetraph.com/security/xss-vulnerability/winmail-server-4-2-reflected-xss/ 
http://computerobsess.blogspot.com/2015/08/winmail-xss.html
http://marc.info/?l=oss-security&m=144094251309925&w=4
http://permalink.gmane.org/gmane.comp.security.oss.general/17656
https://webtechwire.wordpress.com/2015/08/31/winmail-xss/
http://tetraph.blog.163.com/blog/static/234603051201573115638385/
http://webtechhut.blogspot.com/2015/08/winmail-xss-0day.html
http://ittechnology.lofter.com/post/1cfbf60d_806df2e
http://www.inzeed.com/kaleidoscope/xss-vulnerability/fc2-blog-xss/
http://webcabinet.tumblr.com/post/128010125747/winmail-xss-bug 
http://www.openwall.com/lists/oss-security/2015/08/30/3
https://progressive-comp.com/?l=oss-security&m=144094251309925&w=1
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Thursday, 25 June 2015

eBay Covert Redirect Web Security Bugs Based on Googleads.g.doubleclick.net



 

 

 

 

 

 



eBay Covert Redirect Vulnerability Based on Googleads.g.doubleclick.net


(1) WebSite:
ebay.com


"eBay Inc. (stylized as ebay, formerly eBay) is an American multinational corporation and e-commerce company, providing consumer to consumer & business to consumer sales services via Internet. It is headquartered in San Jose, California. eBay was founded by Pierre Omidyar in 1995, and became a notable success story of the dot-com bubble. Today, it is a multi-billion dollar business with operations localized in over thirty countries.

The company manages eBay.com, an online auction and shopping website in which people and businesses buy and sell a broad variety of goods and services worldwide. In addition to its auction-style sales, the website has since expanded to include "Buy It Now" shopping; shopping by UPC, ISBN, or other kind of SKU (via Half.com); online classified advertisements (via Kijiji or eBay Classifieds); online event ticket trading (via StubHub); online money transfers (via PayPal) and other services." (Wikipedia)







(2) Vulnerability Description:
eBay web application has a computer cyber security problem. Hacker can exploit it by Covert Redirect attacks. 




The vulnerability occurs at “ebay.com/rover” page with “&mpre” parameter, i.e.
http://rover.ebay.com/rover/1/711-67261-24966-0/2?mtid=691&kwid=1&crlp=1_263602&itemid=370825182102&mpre=http://www.google.com
The vulnerability can be attacked without user login. Tests were performed on Firefox (26.0) in Ubuntu (12.04) and IE (9.0.15) in Windows 7.









(2.1) When a user is redirected from eBay to another site, eBay will check whether the redirected URL belongs to domains in eBay’s whitelist, e.g.
google.com

If this is true, the redirection will be allowed.
However, if the URLs in a redirected domain have open URL redirection vulnerabilities themselves, a user could be redirected from eBay to a vulnerable URL in that domain first and later be redirected from this vulnerable site to a malicious site. This is as if being redirected from eBay directly.
One of the vulnerable domain is,
http://googleads.g.doubleclick.net (Google’s Ad system)






(2.2) Use one of  webpages for the following tests. The webpage address is “http://itinfotech.tumblr.com/“. We can suppose that this webpage is malicious.
Vulnerable URL:





POC:




Poc Video:


Blog Detail:





(3) What is Covert Redirect? 

Covert Redirect is a class of security bugs disclosed in May 2014. It is an application that takes a parameter and redirects a user to the parameter value without sufficient validation. This often makes use of Open Redirect and XSS vulnerabilities in third-party applications.


Covert Redirect is also related to single sign-on. It is known by its influence on OAuth and OpenID. Hacker may use it to steal users' sensitive information. Almost all OAuth 2.0 and OpenID providers worldwide are affected. Covert Redirect was found and dubbed by a Mathematics PhD student Wang Jing from School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore.


After Covert Redirect was published, it is kept in some common databases such as SCIP, OSVDB, Bugtraq, and X-Force. Its scipID is 13185, while OSVDB reference number is 106567. Bugtraq ID: 67196.  X-Force reference number is 93031.






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











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Google Covert Redirect Web Security Bugs Based on Googleads.g.doubleclick.net



















 
 
 
 
Bypass Google Open Redirect Filter Based on Googleads.g.doubleclick.net
-- Google Covert Redirect Vulnerability Based on Googleads.g.doubleclick.net



(1) WebSite:
google.com


"Google is an American multinational technology company specializing in Internet-related services and products. These include online advertising technologies, search, cloud computing, and software. Most of its profits are derived from AdWords, an online advertising service that places advertising near the list of search results.

The corporation has been estimated to run more than one million servers in data centers around the world (as of 2007). It processes over one billion search requests and about 24 petabytes of user-generated data each day (as of 2009). In December 2013, Alexa listed google.com as the most visited website in the world. Numerous Google sites in other languages figure in the top one hundred, as do several other Google-owned sites such as YouTube and Blogger. Its market dominance has led to prominent media coverage, including criticism of the company over issues such as search neutrality, copyright, censorship, and privacy." (Wikipedia)







(2) Vulnerability Description:
Google web application has a computer cyber security problem. Hacker can exploit it by Covert Redirect attacks. 


The vulnerability exists at "Logout?" page with "&continue" parameter, i.e.



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) When a user is redirected from Google to another site, Google will check whether the redirected URL belongs to domains in Google's whitelist (The whitelist usually contains websites belong to Google), e.g.
docs.google.com
googleads.g.doubleclick.net






If this is true, the redirection will be allowed.
However, if the URLs in a redirected domain have open URL redirection  vulnerabilities themselves, a user could be redirected from Google to a vulnerable URL in that domain first and later be redirected from this vulnerable site to a malicious site. This is as if being redirected from Google directly.



One of the vulnerable domain is,
googleads.g.doubleclick.net (Google's Ad System)






(2.2) Use one webpage for the following tests. The webpage address is "http://www.inzeed.com/kaleidoscope". We can suppose that this webpage is malicious.


Vulnerable URL:




POC:



POC Video:








(3) What is Covert Redirect? 

Covert Redirect is a class of security bugs disclosed in May 2014. It is an application that takes a parameter and redirects a user to the parameter value without sufficient validation. This often makes use of Open Redirect and XSS vulnerabilities in third-party applications.

Covert Redirect is also related to single sign-on. It is known by its influence on OAuth and OpenID. Almost all OAuth 2.0 and OpenID providers worldwide are affected. Covert Redirect was found and dubbed by a Mathematics PhD student Wang Jing from School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore.


After Covert Redirect was published, it is kept in some common databases such as SCIP, OSVDB, Bugtraq, and X-Force. Its scipID is 13185, while OSVDB reference number is 106567. Bugtraq ID: 67196.  X-Force reference number is 93031.








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










More Details:


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