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

ebay-logo

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:
https://www.youtube.com/watch?v=a4H-u17Y9ks

 

Blog Detail:
http://securityrelated.blogspot.com/2014/11/ebay-covert-redirect-vulnerability.html



 

 



(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)
http://tetraph.com/wangjing/

phpwind v8.7 Unvalidated Redirects and Forwards Web Security Vulnerabilities

phpwind_xss2

 

phpwind v8.7 Unvalidated Redirects and Forwards Web Security Vulnerabilities

 

Exploit Title: phpwind v8.7 goto.php? &url Parameter Open Redirect Security Vulnerabilities

Product: phpwind

Vendor: phpwind

Vulnerable Versions: v8.7

Tested Version: v8.7

Advisory Publication: May 25, 2015

Latest Update: May 25, 2015

Vulnerability Type: URL Redirection to Untrusted Site (‘Open Redirect’) [CWE-601]

CVE Reference: *

Impact CVSS Severity (version 2.0):

CVSS v2 Base Score: 5.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:N) (legend)

Impact Subscore: 4.9

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 disclosure of information; Allows unauthorized modification

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

 

 

 

Caution Details:

 

(1) Vendor & Product Description:

Vendor:

phpwind

 

Product & Vulnerable Versions:

phpwind

v8.7

 

Vendor URL & Download:

Product can be obtained from here,

http://www.phpwind.net/thread/166

 

Product Introduction Overview:

“Today, the country’s 200,000 worth of small sites, there are nearly 100,000 community site uses phpwind, has accumulated more than one million sites use phpwind, there are 1,000 new sites every day use phpwind. These community sites covering 52 types of trades every day one million people gathered in phpwind build community, issued 50 million new information, visit more than one billion pages. National Day PV30 million or more in 1000 about a large community, there are more than 500 sites selected phpwind station software provided, including by scouring link Amoy satisfaction, a daily e-commerce and marketing groups, and other on-line product vigorously increase in revenue for the site. Excellent partners, such as Xiamen fish, of Long Lane, Erquan network, Kunshan forum, the North Sea 360, Huizhou West Lake, Huashang like.

phpwind recent focus on strengthening community media value, expand e-commerce applications community. phpwind focus on small sites to explore the value of integration and applications, we believe that the website that is community, the community can provide a wealth of applications to meet people access to information, communication, entertainment, consumer and other living needs, gain a sense of belonging, become online home . With the development of the Internet, in the form of the site will be more abundant, the integration of the Forum, more forms of information portals, social networking sites, we will integrate these applications to products which, and to create the most optimized user experience. phpwind mission is to make the community more valuable, so that more people enjoy the convenience of the Internet community in order to enhance the quality of life."

 

 

 

(2) Vulnerability Details:

phpwind web application has a computer cyber 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.

Several other similar products 0-day vulnerabilities have been found by some other bug hunter researchers before. phpwind has patched some of them. 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! It also publishs suggestions, advisories, solutions details related to Open Redirect vulnerabilities and cyber intelligence recommendations.

 

(2.1) The first programming code flaw occurs at “&url" parameter in “/goto.php?" page.

 

 

 

 

 

References:

http://www.tetraph.com/security/open-redirect/phpwind-v8-7-open-redirect/

http://securityrelated.blogspot.com/2015/05/phpwind-v87-xss.html

http://www.inzeed.com/kaleidoscope/computer-security/phpwind-v8-7-open-redirect/

https://www.facebook.com/permalink.php?story_fbid=836880753013969&id=767438873291491

https://webtechwire.wordpress.com/2015/05/24/phpwind-v8-7-open-redirect-2/

http://diebiyi.com/articles/security/phpwind-v8-7-open-redirect/

https://www.mail-archive.com/fulldisclosure%40seclists.org/msg01741.html

https://itswift.wordpress.com/2015/05/24/phpwind-v8-7-open-redirect/

http://whitehatpost.blog.163.com/blog/static/242232054201542495731506/

http://cxsecurity.com/issue/WLB-2015030028

http://seclists.org/fulldisclosure/2015/Apr/35

http://www.openwall.com/lists/oss-security/2015/05/22/7

http://permalink.gmane.org/gmane.comp.security.oss.general/16883

https://www.facebook.com/websecuritiesnews/posts/796475067139332

http://computerobsess.blogspot.com/2015/05/phpwind-v87-open-redirect.html

http://lists.openwall.net/full-disclosure/2015/04/15/1

http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1841

Web Technology Wire

phpwind_xss2

phpwind v8.7 Unvalidated Redirects and Forwards Web Security Vulnerabilities

Exploit Title: phpwind v8.7 goto.php? &url Parameter Open Redirect Security Vulnerabilities

Product: phpwind

Vendor: phpwind

Vulnerable Versions: v8.7

Tested Version: v8.7

Advisory Publication: May 25, 2015

Latest Update: May 25, 2015

Vulnerability Type: URL Redirection to Untrusted Site (‘Open Redirect’) [CWE-601]

CVE Reference: *

Impact CVSS Severity (version 2.0):

CVSS v2 Base Score: 5.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:N) (legend)

Impact Subscore: 4.9

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 disclosure of information; Allows unauthorized modification

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

Caution Details:

(1) Vendor & Product Description:

Vendor:

phpwind

Product & Vulnerable Versions:

phpwind

v8.7

Vendor URL & Download:

Product can be obtained from here,

View original post 詳見內文:約536字

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

比翼鳥資訊 - 在天願作比翼鳥 在地願為連理枝

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

— Google Covert Redirect Vulnerability Based on Googleads.g.doubleclick.net

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.

stock-footage-computer-generated-background-with-moving-circles-binary-code-and-a-globe

(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.

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.

POC Video:

https://www.youtube.com/watch?v=btuSq89khcQ&feature=youtu.be

Vulnerability Reporter:

Wang Jing, School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore.

View original post 詳見內文:約1字

About Group 超过 99.88% 的链接容易遭受 XSS 和 XFS 攻击

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About Group 网站有一个严重的网络安全问题,它容易遭受 XSS (跨站脚本漏洞) XFS (跨Frame脚本漏洞)。这对它的近10亿月访问用户是灾难和毁灭性的。

 

根据漏洞研究者发布的结果POC视频,所有About.com的话题(子域名)都可以被攻击者利用。

 

新加坡南洋理工大学 (NTU) 数学和物理学院 (SPMS) 数学系 (MAS) 的王晶 (Wang Jing) 发布了这个严重的安全漏洞。王晶声称在2014年10月19号,他向 About Group 做了报告,但是迄今为止一直没有收到回复。漏洞的发布时间是2015年2月2号。“到现在为止,漏洞还没有被修复” 王晶说。

 

与此同时,王晶披露 About.com 主页面的搜索域也容易遭受 XSS 攻击。除此之外,他还发布了一些 About.com 的公开重定向漏洞 (Open Redirect). 王说他的测试是在 Windows 8 的 IE (10.0.9200.16750) 和 Mozilla 的 Firefox (34.0), Ubuntu (14.04) 的 Google Chromium 39.0.2171.65-0, 以及 Mac OS X Lion 10.7 的 Apple Safari 6.1.6 上进行的。

 

XSS (Cross- site Scripting) 可以用来窃取用户信息,控制用户浏览器,和进行 DOS (Denial of Service) 攻击。 XFS (Cross-frame Scripting) 也叫 iFrame Injection,可以修改用户浏览器页面内容。

 

在发布漏洞的同时,王晶还说明因为 About Group 的普遍性,它的漏洞可以用来对其他网站进行隐蔽重定向攻击 (Covert Redirect);XFS 则可以用来对计算机和网络进行 DDOS (Distributed Denial of Service) 黑客攻击。这些漏洞发布在著名漏洞平台 Full-Disclosure 上和他的个人博客上。

 

王晶是一名学生安全研究人员。他发布了包括谷歌,脸书,亚马逊,阿里巴巴,电子湾,领英等多家公司网站的重要漏洞以及大量网络应用程序的补丁。
 

 
 
 

相关新闻:
http://www.zdnet.com/article/over-99-percent-of-about-com-links-vulnerable-to-xss-xfs-iframe-attack/
http://www.securityweek.com/xss-xfs-open-redirect-vulnerabilities-found-aboutcom
http://securityaffairs.co/wordpress/33070/hacking/com-affected-xss-xfs-open-redirect-vulnerabilities-since-october-2014.html
http://packetstormsecurity.com/files/130211/About.com-Cross-Site-Scripting.html
http://www.zoomit.ir/it-news/security/17394-about-com-links-vulnerable-to-xss-xfs
http://itsecurity.lofter.com/post/1cfbf9e7_6f05a63
http://tetraph.com/covert_redirect/oauth2_openid_covert_redirect.html
http://securitypost.tumblr.com/post/118837857592/about-group-99-88-xss-xfs-about
http://www.inzeed.com/kaleidoscope/computer-security/about-group-xss-xfs/
https://www.secnews.gr/99percent-about-xss-xfs-attack-exploit
http://www.decomoadesinstalar.com/abrir-codigo-iframe-xss-xfs-ataque-mas-del-99-por
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1547
http://www.40kalagh.net/about-grope-xss-and-xfs
http://blog.norsecorp.com/2015/02/03/about-com-platform-rife-with-xss-and-iframe-injection-vulnerabilities/

Alibaba Taobao, AliExpress, Tmall, Online Electronic Shopping Website XSS & Open Redirect Security Vulnerabilities

aliexpress_1


Alibaba Taobao, AliExpress, Tmall, Online Electronic Shopping Website XSS & Open Redirect Security Vulnerabilities



Domains Basics:

Alibaba Taobao, AliExpress, Tmall are the top three online shopping websites belonging to Alibaba.





Vulnerability Discover:
Jing Wang, Division of Mathematical Sciences (MAS), School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore.
http://www.tetraph.com/wangjing/




(1) Domains Descriptions:

“Taobao is a Chinese website for online shopping similar to eBay and Amazon that is operated in China by Alibaba Group.” (Wikipedia)

“With around 760 million product listings as of March 2013, Taobao Marketplace is one of the world’s top 10 most visited websites according to Alexa. For the year ended March 31, 2013, the combined gross merchandise volume (GMV) of Taobao Marketplace and Tmall.com exceeded 1 trillion yuan.” (Wikipedia)

Alexa ranking 9 at 10:40 am Thursday, 22 January 2015 (GMT+8).



“Launched in 2010, AliExpress.com is an online retail service made up of mostly small Chinese businesses offering products to international online buyers. It is the most visited e-commerce website in Russia" (Wikipedia)



“Taobao Mall, is a Chinese-language website for business-to-consumer (B2C) online retail, spun off from Taobao, operated in the People’s Republic of China by Alibaba Group. It is a platform for local Chinese and international businesses to sell brand name goods to consumers in mainland China, Hong Kong, Macau and Taiwan." (Wikipedia)

 

 

(2) Vulnerability descriptions:

Alibaba Taobao AliExpress Tmall online electronic shopping website has a cyber security bug problem. It can be exploited by XSS and Covert Redirect attacks.

 

 

(3) Alibaba Taobao, AliExpress, Tmall, Online Electronic Shopping Website XSS

The vulnerability can be exploited without user login. Tests were performed on Firefox (34.0) in Ubuntu (14.04) and IE (8.0.7601) in Windows 7.

 

 

(3.1) Alibaba Taobao Online Electronic Shopping Website (Taobao.com ) XSS (cross site scripting) Security Vulnerability

The vulnerabilities occur at “writecookie.php?" page with “ck" parameter, e.g

POC Code:

http://www.taobao.com/go/rgn/tw/writecookie.php?ck=tw“–>’-alert(/justqdjing/ )-‘";&redirect=0

POC Video:

Blog Details:




(3.2)Alibaba AliExpress Online Electronic Shopping Website (Aliexpress.com) XSS Security Vulnerabilities

The vulnerabilities occur at “landing.php?" page with “cateid" “fromapp" parameters, e.g

POC Code:

/’ “><img src=x onerror=prompt(/tetraph/)>

http://activities.aliexpress.com/mobile_325_promotion_landing.php?cateid=6</script>/’ “><img src=x onerror=prompt(/tetraph/)><!–&fromapp=

POC Video:

Blog Details:




(3.3) Alibaba Tmall Online Electronic Shopping Website (Tmall.com) XSS Security Vulnerability

The vulnerabilities occur at “writecookie.php?" page with “ck" parameter, e.g

POC Code:

http://www.tmall.com/go/app/sea/writecookie.php?ck=cn“–>’-alert(/tetraph/ )-‘";&redirect=1

POC Video:

Blog Details:

 

This vulnerabilities were disclosed at Full Disclosure. “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!" All 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.

 

 

(4) Alibaba Taobao(taobao.com)Covert Redirect Security Vulnerability Based on Apple.com



(4.1) Vulnerability description:

Alibaba Taobao has a security problem. It can be exploited by Covert Redirect attacks. Taobao will check whether the redirected URL belongs to domains in Taobao’s whitelist, e.g.

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 Taobao 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 Taobao directly.

In fact, Apple.com was found can be exploited by Open Redirect vulnerabilities. Those vulnerabilities details will be published in the near future.



(4.2) The vulnerability occurs at “redirect.htm?" page, with parameter “&url”, i.e.

The vulnerabilities can be attacked without user login. Tests were performed on IE (10.0) of Windows 8, Firefox (34.0) & Google Chromium 39.0.2171.65-0 ubuntu0.14.04.1.1064 (64-bit) of Ubuntu (14.04),Safari 6.1.6 of Mac OS X Lion 10.7.

 

 

(4.3) Use a website for the tests,the redirected webpage is “http://www.tetraph.com/blog“. Just suppose it is malicious.

Vulnerable URL:

POC Code:

Poc Video:

Blog Detail:

 

 

Those vulnerablities were reported to Alibaba in 2014 and have been patched by the security team (just checked). Name was listed in the hall of fame by Alibaba.
http://security.alibaba.com/people.htm?id=2048213134

 

 

 

 

https://www.facebook.com/websecuritiesnews/posts/802525526534286

https://www.facebook.com/permalink.php?story_fbid=841091885926189&id=767438873291491

https://infoswift.wordpress.com/2015/01/27/alibaba-xss-open-redirect/

http://tetraph.blog.163.com/blog/static/2346030512015545132356/

 

 



========================================================







阿里巴巴 淘宝, 天猫, 全球苏卖通 线上电子购物网 跨站脚本攻击 (XSS) & 公开重定向 (Open Redirect) 安全漏洞

 

 

域名:

阿里巴巴 淘宝, 天猫, 全球苏卖通 线上电子购物网 是阿里巴巴集团最大的前三家网上购物电子商务网站.

 

 

(1) 漏洞描述:

阿里巴巴 淘宝, 天猫, 全球苏卖通 线上电子购物网 有一个安全问题. 它容易遭受 跨站脚本攻击 (XSS) & 公开重定向 (Open Redirect) 安全漏洞攻击.

漏洞不需要用户登录,测试是基于Windows 7 的 IE (8.0. 7601) 和 Ubuntu (14.04) 的 Firefox (34.0)。

 

 

(1.1) 阿里巴巴 淘宝 线上电子购物网 (Taobao.com) XSS (跨站脚本攻击) 安全漏洞

漏洞链接地点 “writecookie.php?", 参数 “ck" e.g.

POC:

http://www.taobao.com/go/rgn/tw/writecookie.php?ck=tw“–>’-alert(/tetraph/ )-‘";&redirect=0

 

 

(1.2) 阿里巴巴 全球速卖通 在线交易平台 (aliexpress.com) XSS (跨站脚本攻击) 安全漏洞

漏洞链接地点 “mobile_325_promotion_landing.php", 参数 “cateid" 和 “fromapp" e.g.

POC:

/’ “><img src=x onerror=prompt(/tetraph/)>

http://activities.aliexpress.com/mobile_325_promotion_landing.php?cateid=6</script>/’ “><img src=x onerror=prompt(/tetraph/)><!–&fromapp=

 

 

(1.3) 阿里巴巴 天猫 线上电子购物网 (Tmall.com) XSS (跨站脚本攻击) 安全漏洞

漏洞链接地点 “writecookie.php?", 参数 “ck" e.g.

POC:

http://www.tmall.com/go/app/sea/writecookie.php?ck=cn“–>’-alert(/tetraph/ )-‘";&redirect=1

 

 

(2) 阿里巴巴淘宝线上电子购物网(taobao.com)Covert Redirect(隐蔽重定向跳转)安全漏洞基于 苹果网站

 

 

(2.1) 漏洞描述:

阿里巴巴 淘宝购物网 有一个安全问题. 它容易遭受 Covert Redirect (Open Redirect 公开重定向) 漏洞攻击. 所有 属于 Apple.com 的 链接都在白名单内。故而如果 苹果的 网站 本身有 公开重定向问题。那么受害者相当于首先被导向到 苹果官网然后 到 有害网站。 事实上苹果网站被发现有公开重定向问题,过段时间会公布细节。

有漏洞的文件是 “redirect.htm?", 参数 “&url”, i.e.

这个漏洞不需要用户登录。测试是基于Windows 8 的 IE (10.0) 和 Ubuntu (14.04) 的 Firefox (34.0) 及 Google Chromium 39.0.2171.65-0 ubuntu0.14.04.1.1064 (64-bit),Mac OS X Lion 10.7 的 Safari 6.1.6。

 

 

(2.2) 用一个创建的网页进行测试,这个网页是“http://www.tetraph.com/blog“。可以假定这个页面是有害的。

漏洞网址:

POC 代码:

 

这些漏洞在2014年被报告给阿里巴巴安全应急中心,到今天已被修补 (刚刚检查), 名字被列在了白帽子名单感谢表里。
http://security.alibaba.com/people.htm?id=2048213134

 

漏洞发现者:
王晶, 数学科学系 (MAS), 物理与数学科学学院 (SPMS), 南洋理工大学 (NTU), 新加坡.
http://www.tetraph.com/wangjing/

 

 

 

Yahoo and Yahoo Japan May be Vulnerable to Spams

175801847

Yahoo and Yahoo Japan May be Vulnerable to Spams
 
Student security researcher Wang Jing from School of Physical and Mathematical Sciences at Nanyang Technological University, Singapore, has found new security vulnerabilities related to Yahoo. After reporting several Open Redirect vulnerabilities to Yahoo. Yahoo’s responses were “It is working as designed”. It seems that Yahoo do not take the vulnerabilities seriously at all.
 
Based on Wang’s report on Full Disclosure “Multiple Open Redirect vulnerabilities were reported Yahoo. All Yahoo’s responses were “this intended behavior”. However, these vulnerabilities were patched later.“
 
The vulnerability of Yahoo occurs at “ard.yahoo.com” page. While the vulnerability of Yahoo Japan happens at sensitive page “http://order.store.yahoo.co.jp”.
Proof of concept on YouTube were also released to illustrate exploits.
 
(1)Yahoo Open Redirect
https://www.youtube.com/watch?v=k4eFLsTyZkg
(2)Yahoo Japan Unvalidated Redirects and Forwards (URF)
https://www.youtube.com/watch?v=2SM78WKAVr8
 
In fact, Yahoo’s users were attacked based on redirection this year. Base onCNET on January 4, 2014, “Yahoo.com visitors over the last few days may have been served with malware via the Yahoo ad network, according to Fox IT, a security firm in the Netherlands. Users visiting pages with the malicious ads were redirected to sites armed with code that exploits vulnerabilities in Java and installs a variety of different malware.”
 
Wang wrote that the attack could work without a user being logged in. And his tests were using Firefox (33.0) in Ubuntu (14.04) and IE (10.0.9200.16521) in Windows 8.
 
Redirect can ensure a good user experience. However, if it is not properly provided. Attackers can use this to trick users. This is common in Phishing attacks and Spams.
 
On 21 December, 2014. Yahoo.com’s Alexa ranking is 4. While Yahoo.co.jp’s Alexa ranking is 17. Both of them are very popular around the world. From Wikipedia, “Yahoo during July 2013 surpassed Google on the number of United States visitors to its Web sites for the first time since May 2011, set at 196 million United States visitors, having increased by 21 percent in a year.”
 
Open redirect is listed in OWASP top 10. The general consensus of it is “avoiding such flaws is extremely important, as they are a favorite target of phishers trying to gain the user’s trust.”

 

 

 

CNN Travel.cnn.com XSS and Ads.cnn.com Open Redirect Web Security Vulnerabilities

cnn_travel_city_xss1

 

CNN Travel.cnn.com XSS and Ads.cnn.com Open Redirect Web Security Vulnerabilities

 

Domain:
http://cnn.com

 

“The Cable News Network (CNN) is an American basic cable and satellite television channel that is owned by the Turner Broadcasting System division of Time Warner. The 24-hour cable news channel was founded in 1980 by American media proprietor Ted Turner. Upon its launch, CNN was the first television channel to provide 24-hour news coverage, and was the first all-news television channel in the United States. While the news channel has numerous affiliates, CNN primarily broadcasts from the Time Warner Center in New York City, and studios in Washington, D.C. and Los Angeles, its headquarters at the CNN Center in Atlanta is only used for weekend programming. CNN is sometimes referred to as CNN/U.S. to distinguish the American channel from its international sister network, CNN International. As of August 2010, CNN is available in over 100 million U.S. households. Broadcast coverage of the U.S. channel extends to over 890,000 American hotel rooms, as well as carriage on cable and satellite providers throughout Canada. Globally, CNN programming airs through CNN International, which can be seen by viewers in over 212 countries and territories. As of February 2015, CNN is available to approximately 96,289,000 cable, satellite and, telco television households (82.7% of households with at least one television set) in the United States.” (Wikipedia)

 

Discovered and Reported by:
Jing Wang, Division of Mathematical Sciences (MAS), School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University (NTU), Singapore. (@justqdjing)
http://www.tetraph.com/wangjing/

 

 

Vulnerability Description:
CNN has a cyber security bug problem. It cab be exploited by XSS (Cross Site Scripting) and Open Redirect (Unvalidated Redirects and Forwards) attacks.

 

Based on news published, CNN users were hacked based on both Open Redirect and XSS vulnerabilities.

 

According to E Hacker News on June 06, 2013, (@BreakTheSec) came across a diet spam campaign that leverages the open redirect vulnerability in one of the top News organization CNN.

 

After the attack, CNN takes measures to detect Open Redirect vulnerabilities. The measure is quite good during the tests. Almost no links are vulnerable to Open Redirect attack on CNN’s website, now. It takes long time to find a new Open Redirect vulnerability that is un-patched on its website.

 

CNN.com was hacked by Open Redirect in 2013. While the XSS attacks happened in 2007.

 

 

“The tweet apparently shows cyber criminals managed to leverage the open redirect security flaw in the CNN to redirect twitter users to the Diet spam websites.”

 

cnn_open_redirect_complain_meitu_1

Figure from ehackingnews.com

 

At the same time, the cybercriminals have also leveraged a similar vulnerability in a Yahoo domain to trick users into thinking that the links point to a trusted website.

 

Several other similar products 0-day vulnerabilities have been found by some other bug hunter researchers before. CNN has patched some of them. BugTraq is a full disclosure moderated mailing list for the *detailed* discussion and announcement of computer security vulnerabilities: what they are, how to exploit them, and how to fix them. The below things be posted to the Bugtraq list: (a) Information on computer or network related security vulnerabilities (UNIX, Windows NT, or any other). (b) Exploit programs, scripts or detailed processes about the above. (c) Patches, workarounds, fixes. (d) Announcements, advisories or warnings. (e) Ideas, future plans or current works dealing with computer/network security. (f) Information material regarding vendor contacts and procedures. (g) Individual experiences in dealing with above vendors or security organizations. (h) Incident advisories or informational reporting. (i) New or updated security tools. A large number of the fllowing web securities have been published here, Buffer overflow, HTTP Response Splitting (CRLF), CMD Injection, SQL injection, Phishing, Cross-site scripting, CSRF, Cyber-attack, Unvalidated Redirects and Forwards, Information Leakage, Denial of Service, File Inclusion, Weak Encryption, Privilege Escalation, Directory Traversal, HTML Injection, Spam. It also publishes suggestions, advisories, solutions details related to XSS and URL Redirection vulnerabilities and cyber intelligence recommendations.

 

 

(1) CNN (cnn.com) Travel-City Related Links XSS (cross site scripting) Web Security Bugs

 

Domain:
travel.cnn.com/

 

Vulnerability Description:
The programming bug flaws occur at “/city/all” pages. All links under this URL are vulnerable to XSS attacks, e.g

 

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

 

The code programming flaw can be exploited without user login. Tests were performed on Firefox (34.0) in Ubuntu (14.04) and IE (9.0.15) in Windows 7.

 

cnn_travel_xss

 

PoC:

http://travel.cnn.com/city/all/all/tokyo/all‘ /”><img src=x onerror=prompt(/justqdjing/)>

 

http://travel.cnn.com/city/all/all/bangkok/all‘ /”><img src=x onerror=prompt(/justqdjing/)>

 

 

(2) CNN cnn.com ADS Open Redirect Web Security Bug

 

Domain:
ads.cnn.com

 

Vulnerability Description:
The programming code flaw occurs at “event.ng” page with “&Redirect” parameter, i.e.

 

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.

 

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) Use the following tests to illustrate the scenario painted above.

 

The redirected webpage address is “http://webcabinet.tumblr.com/“. Suppose that this webpage is malicious.

 

Vulnerable URL:

 

POC:

 

Since CNN is well-known worldwide, this vulnerability can be used to do “Covert Redirect” attacks to other websites.

 

Those vulnerabilities were reported to CNN in early July by Contact from Here. But they are still not been patched yet.
http://edition.cnn.com/feedback/#cnn_FBKCNN_com

 

 

 

 

More Details:
http://seclists.org/fulldisclosure/2014/Dec/128
http://lists.openwall.net/full-disclosure/2014/12/29/6
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1395
http://static-173-79-223-25.washdc.fios.verizon.net/?l=full-disclosure
http://securitypost.tumblr.com/post/107868680057/ithut-cnn-cnn-com-travel
http://ittechnology.lofter.com/post/1cfbf60d_5500df0
http://ithut.tumblr.com/post/120833062743/cnn-xss-url-redirection-bug
http://www.tetraph.com/blog/it-news/cnn-xss-url-redirect-bug/
https://biyiniao.wordpress.com/2015/01/08/cnn-xss-open-redirect-bug/
http://whitehatpost.blog.163.com/blog/static/24223205420155613753998/
https://plus.google.com/u/0/+wangfeiblackcookie/posts/bFkukxiUfXK
https://www.facebook.com/permalink.php?story_fbid=674936469318135
http://tetraph.blogspot.com/2015/06/cnn-xss-redirect-bug.html
http://diebiyi.com/articles/news/cnn-xss-url-redirect-bug/
https://twitter.com/yangziyou/status/607060937309159425
https://redysnowfox.wordpress.com/2014/12/31/cnn-xss-url-redirect-bug/
https://www.facebook.com/permalink.php?story_fbid=1043534509019886
http://whitehatpost.lofter.com/post/1cc773c8_7338196
http://securityrelated.blogspot.com/2014/12/cnn-cnncom-travel-xss-and