Tag Archives: whitehat

KnowledgeTree OSS 3.0.3b Reflected XSS (Cross-site Scripting) Web Application 0-Day Security Bug

KnowledgeTree OSS 3.0.3b Reflected XSS (Cross-site Scripting) Web Application 0-Day Security Bug

 

Exploit Title: KnowledgeTree login.php &errorMessage parameter Reflected XSS Web Security Vulnerability

Product: Knowledge Tree Document Management System

Vendor: Knowledge Inc

Vulnerable Versions: OSS 3.0.3b

Tested Version: OSS 3.0.3b

Advisory Publication: August 22, 2015

Latest Update: August 31, 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)

 

knowledge_tree_page

 

 

knowledge tree_xss

 

 

 

 

Caution Details:

 

(1) Vendor & Product Description:

Vendor:

KnowledgeTree

 

Product & Vulnerable Versions:

Knowledge Tree Document Management System

OSS 3.0.3b

 

Vendor URL & Download:

Product can be obtained from here,
http://download.cnet.com/KnowledgeTree-Document-Management-System/3000-10743_4-10632972.html
http://www.knowledgetree.com/

 

Product Introduction Overview:

“KnowledgeTree is open source document management software designed for business people to use and install. Seamlessly connect people, ideas, and processes to satisfy all your collaboration, compliance, and business process requirements. KnowledgeTree works with Microsoft® Office®, Microsoft® Windows® and Linux®.”

 

 

 

 

(2) Vulnerability Details:

KnowledgeTree 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. KnowledgeTree has patched some of them. “Bugtraq is an electronic mailing list dedicated to issues about computer security. On-topic issues are new discussions about vulnerabilities, vendor security-related announcements, methods of exploitation, and how to fix them. It is a high-volume mailing list, and almost all new vulnerabilities are discussed there.”. It has listed similar exploits, such as Bugtraq (Security Focus) 32920.

 

(2.1) The code flaw occurs at “&errorMessage” parameter in “login.php” page.

One similar bug is CVE-2008-5858. Its X-Force ID is 47529.

 

 

 

 

 

References:
http://seclists.org/oss-sec/2015/q3/458
http://tetraph.com/security/xss-vulnerability/knowledgetree-oss-3-0-3b-reflected-xss/
https://progressive-comp.com/?l=oss-security&m=144094021709472
https://infoswift.wordpress.com/2015/08/31/knowledge-tree-xss/
http://japanbroad.blogspot.jp/2015/08/knowledge-tree-bug-exploit.html
http://marc.info/?l=full-disclosure&m=144099659719456&w=4
http://tetraph.blog.163.com/blog/static/234603051201573144123156/
http://www.openwall.com/lists/oss-security/2015/08/30/2
https://www.mail-archive.com/fulldisclosure%40seclists.org/msg02446.html
http://itinfotech.tumblr.com/post/128016383831/knowledge-tree-xss
http://germancast.blogspot.com/2015/08/knowledge-tree-xss.html
http://permalink.gmane.org/gmane.comp.security.oss.general/17655
http://webtech.lofter.com/post/1cd3e0d3_806e1d4


 

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

go

 

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.

Blog Detail:
http://securityrelated.blogspot.com/2014/11/covert-redirect-vulnerability-based-on.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. 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/

 

 

 

 

More Details:
http://computerobsess.blogspot.com/2014/11/google-covert-redirect-vulnerability.html
http://seclists.org/fulldisclosure/2014/Nov/29
http://cxsecurity.com/issue/WLB-2014110106
http://tetraph.blog.163.com/blog/static/23460305120141145350181/
https://infoswift.wordpress.com/2014/05/25/google-web-security/
http://tetraph.tumblr.com/post/119490394042/securitypost#notes
http://securityrelated.blogspot.com/2014/11/covert-redirect-vulnerability-based-on.html
http://webtech.lofter.com/post/1cd3e0d3_706af10
https://twitter.com/tetraphibious/status/559165319575371776
http://tetraph.com/security/covert-redirect/google-based-on-googleads-g-doubleclick-net/
http://www.inzeed.com/kaleidoscope/computer-security/google-covert-g-doubleclick-net/
https://hackertopic.wordpress.com/2014/05/25/google-web-security/

Attachments area
Preview YouTube video Google Covert Redirect Vulnerability Base Googleads.g.doubleclick.net – Bypass Open Redirect Filters

Google Covert Redirect Vulnerability Base Googleads.g.doubleclick.net – Bypass Open Redirect Filters

The Weather Channel at Least 76.3% Links Vulnerable to XSS Attacks

 
 

GTY_email_hacker_dm_130718_16x9_608

 

The Weather Channel at Least 76.3% Links Vulnerable to XSS Attacks

 

 

Domain Description:
http://www.weather.com/

 

“The Weather Channel is an American basic cable and satellite television channel which broadcasts weather forecasts and weather-related news and analyses, along with documentaries and entertainment programming related to weather. Launched on May 2, 1982, the channel broadcasts weather forecasts and weather-related news and analysis, along with documentaries and entertainment programming related to weather.”

 

“As of February 2015, The Weather Channel was received by approximately 97.3 million American households that subscribe to a pay television service (83.6% of U.S. households with at least one television set), which gave it the highest national distribution of any U.S. cable channel. However, it was subsequently dropped by Verizon FiOS (losing its approximately 5.5 millions subscribers), giving the title of most distributed network to HLN. Actual viewership of the channel averaged 210,000 during 2013 and has been declining for several years. Content from The Weather Channel is available for purchase from the NBCUniversal Archives.” (Wikipedia)

 

 

 

 

Vulnerability description:


The Weather Channel has a cyber security problem. Hacker can exploit it by XSS bugs.

 

Almost all links under the domain weather.com are vulnerable to XSS attacks. Attackers just need to add script at the end of The Weather Channel’s URLs. Then the scripts will be executed.

 

10 thousands of Links were tested based a self-written tool. During the tests, 76.3% of links belong to weather.com were vulnerable to XSS attacks.

 

The reason of this vulnerability is that Weather Channel uses URLs to construct its HTML tags without filtering malicious script codes.

 

The vulnerability can be attacked without user login. Tests were performed on Firefox (34.0) in Ubuntu (14.04) and IE (9.0.15) in Windows 8.

 

 

 

 

weather_1_xss

 
 

weather_2_xx

 

 

POC Codes, e.g.

http://www.weather.com/slideshows/main/“–/>”><img src=x onerror=prompt(‘justqdjing’)>

http://www.weather.com/home-garden/home/white-house-lawns-20140316%22–/“–/>”><img src=x onerror=prompt(‘justqdjing’)>t%28%27justqdjing%27%29%3E

http://www.weather.com/news/main/“><img src=x onerror=prompt(‘justqdjing’)>

 

 

The Weather Channel has patched this Vulnerability in late November, 2014 (last Week). “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, 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. This bug was published at The Full Disclosure in November, 2014.

 

 

 

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

 

 

 

 

More Details:
http://seclists.org/fulldisclosure/2014/Nov/89
http://lists.openwall.net/full-disclosure/2014/11/27/3
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1253
https://progressive-comp.com/?l=full-disclosure&m=141705578527909&w=1
http://whitehatview.tumblr.com/post/104313615841/the-weather-channel-flaw
http://www.inzeed.com/kaleidoscope/xss-vulnerability/the-weather-channel-exploit
http://diebiyi.com/articles/security/the-weather-channel-bug
http://whitehatpost.lofter.com/post/1cc773c8_6f2d4a8
https://vulnerabilitypost.wordpress.com/2014/12/04/the-weather-channel-flaw
http://tetraph.blog.163.com/blog/static/234603051201411475314523/
http://tetraph.blogspot.com/2014/12/the-weather-channel-xss.html
http://ithut.tumblr.com/post/121916595448/weather-channel-xss
https://mathfas.wordpress.com/2014/12/04/the-weather-channel-weather-bug
http://computerobsess.blogspot.com/2014/12/the-weather-channel-xss.html
http://www.tetraph.com/blog/xss-vulnerability/the-weather-channel-bug

 

 

 

All Links in Two Topics of Indiatimes (indiatimes.com) Are Vulnerable to XSS (Cross Site Scripting) Attacks

 
 
Secure website



(1) Domain Description:
http://www.indiatimes.com

“The Times of India (TOI) is an Indian English-language daily newspaper. It is the third-largest newspaper in India by circulation and largest selling English-language daily in the world according to Audit Bureau of Circulations (India). According to the Indian Readership Survey (IRS) 2012, the Times of India is the most widely read English newspaper in India with a readership of 7.643 million. This ranks the Times of India as the top English daily in India by readership. It is owned and published by Bennett, Coleman & Co. Ltd. which is owned by the Sahu Jain family. In the Brand Trust Report 2012, Times of India was ranked 88th among India’s most trusted brands and subsequently, according to the Brand Trust Report 2013, Times of India was ranked 100th among India’s most trusted brands. In 2014 however, Times of India was ranked 174th among India’s most trusted brands according to the Brand Trust Report 2014, a study conducted by Trust Research Advisory.” (en.Wikipedia.org)

 

 

 

(2) Vulnerability description:

The web application indiatimes.com online website has a security problem. Hacker can exploit it by XSS bugs.

 

The code flaw occurs at Indiatimes’s URL links. Indiatimes only filter part of the filenames in its website. All URLs under Indiatimes’s “photogallery” and “top-llists” topics are affected.

Indiatimes uses part of the links under “photogallery” and “top-llists” topics to construct its website content without any checking of those links at all. This mistake is very popular in nowaday websites. Developer is not security expert.

The vulnerability can be attacked without user login. Tests were performed on Mozilla Firefox (26.0) in Ubuntu (12.04) and Microsoft IE (9.0.15) in Windows 7.

 

 

indiatimes_xss_2

 

indiatimes_xss1

 

 

POC Codes:

http://www.indiatimes.com/photogallery/“>homeqingdao<img src=x onerror=prompt(‘justqdjing’)>

http://www.indiatimes.com/top-lists/“>singaporemanagementuniversity<img src=x onerror=prompt(‘justqdjing’)>

http://www.indiatimes.com/photogallery/lifestyle/“>astar<img src=x onerror=prompt(‘justqdjing’)>

http://www.indiatimes.com/top-lists/technology/“>nationaluniversityofsingapore<img src=x onerror=prompt(‘justqdjing’)>

 

 

 

 

What is XSS?

“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.” (OWASP)

 

 

 

(3) Vulnerability Disclosure:

The vulnerabilities were reported to Indiatimes in early September, 2014. However they are still unpatched.

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

 

 

 

 

Related Articles:
http://seclists.org/fulldisclosure/2014/Nov/91
http://lists.openwall.net/full-disclosure/2014/11/27/6
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1256
https://progressive-comp.com/?l=full-disclosure&m=141705615327961&w=1
http://tetraph.blog.163.com/blog/static/234603051201501352218524/
https://cxsecurity.com/issue/WLB-2014120004
https://mathfas.wordpress.com/2014/12/04/all-links-in-two-topics-of-indiatimes
http://diebiyi.com/articles/security/all-links-in-two-topics-of-indiatimes
http://www.inzeed.com/kaleidoscope/computer-security/all-links-in-two-topics
http://itsecurity.lofter.com/post/1cfbf9e7_54fc6c9
http://computerobsess.blogspot.com/2014/12/all-links-in-two-topics-of-indiatimes.html
https://vulnerabilitypost.wordpress.com/2014/12/04/indiatimes-xss
http://whitehatview.tumblr.com/post/104310651681/times-of-india-website
http://www.tetraph.com/blog/computer-security/all-links-in-two-topics-xss

Attachments area
Preview YouTube video All Links in Two Topics of Indiatimes (indiatimes.com) Are Vulnerable to XSS Attacks

All Links in Two Topics of Indiatimes (indiatimes.com) Are Vulnerable to XSS Attacks

OSVDB 119342, 119323 NetCat CMS Multiple HTTP Response Splitting (CRLF) Web Security Vulnerabilities

netcat_1

 

OSVDB 119342, 119323 NetCat CMS Multiple HTTP Response Splitting (CRLF) Web Security Vulnerabilities

 

Exploit Title: NetCat CMS Multiple CRLF Security Vulnerabilities

Product: NetCat CMS (Content Management System)

Vendor: NetCat

Vulnerable Versions: 5.01 3.12 3.0 2.4 2.3 2.2 2.1 2.0 1.1

Tested Version: 3.12

Advisory Publication: March 07, 2015

Latest Update: March 07, 2015

Vulnerability Type: Improper Neutralization of CRLF Sequences (‘CRLF Injection’) [CWE-93]

CVE Reference: *

OSVDB Reference: 119342, 119343

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

 

 

 

 

Advisory Details:



(1) Vendor & Product Description:



Vendor:

NetCat

 

Product & Version:

NetCat

5.01 3.12 3.0 2.4 2.3 2.2 2.1 2.0 1.1

 

Vendor URL & Download:

NetCat can be got from here,

http://netcat.ru/

 

Product Introduction:

NetCat.ru is russian local company. “NetCat designed to create an absolute majority of the types of sites: from simple “business card” with a minimum content to complex web-based systems, from corporate offices to online stores, libraries or media data – in other words, projects completely different directions and at any level of complexity. View examples of sites running on NetCat CMS can be in a special section.”

“Manage the site on the basis of NetCat can even inexperienced user, because it does not require knowledge of Internet technologies, programming and markup languages. NetCat constantly improving, adds new features. In the process of finalizing necessarily take into account the wishes of our partners and clients, as well as trends in Internet development. More than 2,000 studios and private web developers have chosen for their projects is NetCat, and in 2013 sites, successfully working on our CMS, created more than 18,000.”

 

 

 

(2) Vulnerability Details:

NetCat web application has a computer security bug problem. It can be exploited by HTTP Response Splitting (CRLF) attacks. This could allow a remote attacker to insert arbitrary HTTP headers, which are included in a response sent to the server. If an application does not properly filter such a request, it could be used to inject additional headers that manipulate cookies, authentication status, or more.

Several other similar products 0-day vulnerabilities have been found by some other bug hunter researchers before. NetCat has patched some of them. CXSECurity is a huge collection of information on data communications safety. Its main objective is to inform about errors in various applications. It also publishes suggestions, advisories, solutions details related to CRLF vulnerabilities and cyber intelligence recommendations.

(2.1) The first code flaw occurs at “/post.php” page with “redirect_url” parameter by adding “%0d%0a%20”.

(2.2) The second code flaw occurs at “redirect.php?” page with “url” parameter by adding “%0d%0a%20”.

 

 

 

 

Reference:
http://www.osvdb.org/show/osvdb/119342
http://www.osvdb.org/show/osvdb/119343
http://lists.openwall.net/full-disclosure/2015/03/07/3
http://seclists.org/fulldisclosure/2015/Mar/36
http://marc.info/?l=full-disclosure&m=142576233403004&w=4
https://www.mail-archive.com/fulldisclosure%40seclists.org/msg01768.html
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1676
http://securityrelated.blogspot.com/2015/03/netcat-cms-multiple-http-response.html
http://essayjeans.blog.163.com/blog/static/23717307420155142423197/
http://computerobsess.blogspot.com/2015/06/osvdb-119342-netcat-crlf.html
http://diebiyi.com/articles/bugs/netcat-cms-crlf
http://tetraph.blog.163.com/blog/static/234603051201551423749286/
https://webtechwire.wordpress.com/2015/03/14/osvdb-119342-netcat-crlf/
https://itswift.wordpress.com/2015/03/07/netcat-cms-multiple
http://tetraph.com/security/http-response-splitting-vulnerability/netcat-cms-multiple
http://www.inzeed.com/kaleidoscope/computer-web-security/netcat-cms

FC2 Online Web Service Open Redirect (Unvalidated Redirects and Forwards) Cyber Security Vulnerabilities

fc2_com_2

 

FC2 Online Web Service Open Redirect (Unvalidated Redirects and Forwards) Cyber Security Vulnerabilities

 

Domain:
fc2.com

“FC2 (founded July 20, 1999) is a popular Japanese blogging host, the third most popular video hosting service in Japan (after YouTube and Niconico), and a web hosting company headquartered in Las Vegas, Nevada. It is the sixth most popular website in Japan overall (as of January 2014). FC2 is an abbreviation of “Fantastic Kupi-Kupi (クピクピ)”. It is known to allow controversial adult content such as pornography and hate speech (unlike many of its competitors). The company uses rented office space for its headquarters which it shares with many other U.S.-based businesses. It also pays taxes in the United States. The physical servers are located in the United States. However, it is believed that the majority of the company and its users (including employees) are located within Japan” (Wikipedia)

 

The Alexa rank of fc2.com is 52 on February 18 2015. It is the toppest Japanese local website sevice.

 

 

 

(1) Vulnerability Description:

FC2 online web service has a computer cyber security bug problem. It can be exploited by Open Redirect (Unvalidated Redirects and Forwards) attacks. Here is the description of Open Redirect: “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.” One consequences of it is Phishing. (OWASP)

 

The program code flaw can be attacked without user login. Tests were performed on Microsoft IE (9 9.0.8112.16421) of Windows 7, Mozilla Firefox (37.0.2) & Google Chromium 42.0.2311 (64-bit) of Ubuntu (14.04.2),Apple Safari 6.1.6 of Mac OS X v10.9 Mavericks.

 

In fact, during the test, it is not hard to find URL Redirection bugs in FC2. Maybe fc2.com pays little attention to mitigate these Vulnerabilities. These bugs were found by using URFDS.

 

 

 

(2) Use one of webpages for the following tests. The webpage address is “http://securitypost.tumblr.com/“. Can suppose that this webpage is malicious.

 

 

Vulnerability Disclosure:
Those vulnerabilities were reported to Rakuten, they are still unpatched.

 

 

 

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

 

 

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

 

 

 

FC2オンラインWebサービスオープンリダイレクト(未検証のリダイレクトとフォワード)サイバー·セキュリティの脆弱性

 

ドメイン:
fc2.com

(1999年7月20日に設立)」FC2は、日本の人気ブログのホスト、(YouTubeやニコニコ後)は、日本で3番目に人気のビデオホスティングサービス、およびラスベガス、ネバダ州に本社を置くウェブホスティング会社です。それは第六最も人気のあります日本のウェブサイトは、全体的な。(2014年1月のように)FC2はの略で、「ファンタスティックKupi-Kupi(クピクピ)」。このようなポルノのような論争のアダルトコンテンツを許可し、(競合他社の多くとは異なり)スピーチを憎むことが知られています。」 (ウィキペディア)

 

fc2.comのAlexaのランクはそれがtoppest日本のローカルウェブサイトの流通サービスである2月18日2015年52あります。

 

 

 

(1)脆弱性の説明:

FC2オンラインWebサービスは、コンピュータのサイバーセキュリティバグの問題があります。それは、オープンリダイレクト(未検証のリダイレクトとフォワード)攻撃によって悪用される可能性があります。ここでオープンリダイレクトの説明は次のとおりです。「オープンリダイレクトがパラメータを受け取り、何の検証も行わずにパラメータ値にユーザーをリダイレクトするアプリケーションです。この脆弱性は、それを実現することなく、悪質なサイトを訪問するユーザーを取得するためにフィッシング攻撃で使用されています。。 “それの一つの結果はフィッシングで​​す。 (OWASP)

 

プログラムコードの欠陥は、ユーザのログインなしで攻撃される可能性があります。テストは、Windows 7のMicrosoftのIE(9 9.0.8112.16421)で行われた、Mozilla Firefoxの(37.0.2)&グーグルクロム42.0.2311のUbuntuの(64ビット)(14.04.2)はMac OSのアップルのSafari 6.1.6 X v10.9マーベリックス。

 

実際には、テスト時には、FC2内のURLリダイレクトのバグを見つけることは難しいことではありません。多分fc2.comは、これらの脆弱性を軽減するためにはほとんど注意を払っています。

 

 

 

(2)以下の試験のためのWebページのいずれかを使用します。ウェブページアドレスは「http://securitypost.tumblr.com/」です。このウェブページに悪意であるとすることができます。

 

 

脆弱性の公開:
これらの脆弱性は楽天に報告された、彼らはまだパッチを適用していないです。

 

 

発見し、レポーター:
王ジン (Wang Jing)、数理科学研究部門(MAS)、物理的および数理科学科(SPMS)、南洋理工大学(NTU)、シンガポール。 (@justqdjing
http://www.tetraph.com/wangjing

Attachments area
Preview YouTube video FC2 Online Web Service Unvalidated Redirects and Forwards Cyber Security Vulnerabilities

FC2 fc2.com Online Website URLs XSS (cross site scripting) Vulnerabilities (All URLs Under Domain blog.fc2.com/tag)

FC2 fc2.com Online Website URLs XSS (cross site scripting) Vulnerabilities (All URLs Under Domain blog.fc2.com/tag)

 

Domain:
blog.fc2.com/

“FC2 (founded July 20, 1999) is a popular Japanese blogging host, the third most popular video hosting service in Japan (after YouTube and Niconico), and a web hosting company headquartered in Las Vegas, Nevada. It is the sixth most popular website in Japan overall (as of January 2014). FC2 is an abbreviation of “Fantastic Kupi-Kupi (クピクピ)”. It is known to allow controversial adult content such as pornography and hate speech (unlike many of its competitors). The company uses rented office space for its headquarters which it shares with many other U.S.-based businesses. It also pays taxes in the United States. The physical servers are located in the United States. However, it is believed that the majority of the company and its users (including employees) are located within Japan” (Wikipedia)

 

The Alexa rank of fc2.com is 52 on February 18 2015. It is the toppest Japanese local website sevice.

 

 

fc2_blog_xss1




fc2_blog_xss2

 

 

(1) Vulnerability description:

FC2 has a computer cyber security bug problem. It is vulnerable to XSS attacks. Here is the description of XSS: “Hackers are constantly experimenting with a wide repertoire of hacking techniques to compromise websites and web applications and make off with a treasure trove of sensitive data including credit card numbers, social security numbers and even medical records. Cross-site Scripting (also known as XSS or CSS) is generally believed to be one of the most common application layer hacking techniques Cross-site Scripting allows an attacker to embed malicious JavaScript, VBScript, ActiveX, HTML, or Flash into a vulnerable dynamic page to fool the user, executing the script on his machine in order to gather data. The use of XSS might compromise private information, manipulate or steal cookies, create requests that can be mistaken for those of a valid user, or execute malicious code on the end-user systems. The data is usually formatted as a hyperlink containing malicious content and which is distributed over any possible means on the internet.” (Acunetix)

 

The programming code flaw occurs at fc2 URLs’ filenames . Fc2 only filter part of the filenames in the urls. Almost all urls are affected under domain blog.fc2.com/tag are affected. i.e.
http://blog.fc2.com/tag/drug/
http://blog.fc2.com/tag//アメリカ/
http://blog.fc2.com/tag/tag/翻訳
http://blog.fc2.com/tag//>レシピブログに参加中♪

 

The vulnerability can be attacked without user login. Tests were performed on Firefox (37.02) in Ubuntu (14.04) and IE (9.0.15) in Windows 7. The bugs found by using CSXDS.

 

POC Code:
http://blog.fc2.com/tag/drug//“><img src=x onerror=prompt(‘justqdjing’)>
http://blog.fc2.com/tag//アメリカ//“><img src=x onerror=prompt(‘justqdjing’)>
http://blog.fc2.com/tag/tag/翻訳//“><img src=x onerror=prompt(‘justqdjing’)>
http://blog.fc2.com/tag//>レシピブログに参加中//”><img src=x onerror=prompt(‘justqdjing’)>

 

 

 

Vulnerability Disclosure:
Those vulnerabilities were reported to rakuten-cert@rakuten.co.jp in 2014. No one replied. Until now, they are still unpatched.

 

 

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

 

 

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

 

 

FC2 fc2.comオンラインのウェブサイトのURL XSS(クロスサイトスクリプティング)脆弱性(ドメインblog.fc2.com/tag下にあるすべてのURL)

 

ドメイン:
blog.fc2.com/

“FC2(エフシーツー)は、アメリカ合衆国ネバダ州ラスベガスに本社を置く、Webサービスおよびホスティングサービスを展開する企業。日本を中心に事業展開を行なっている。社名のFC2は「ファンタスティック・クピ・クピ」の略であるとしている。 会社の代表者は、設立当初から2008年までは日本人の高橋理洋(CEO)が務めたが、2009年からMaurice Bannon、2012年にはLance Wolff Kerness、2014年はDEREK G ROWLEYが務めている。” (ja.wikipedia.org)

 

 

(1)脆弱性の説明:

FC2は、コンピュータのサイバーセキュリティバグの問題があります。これは、XSS攻撃に対して脆弱です。ここでXSSの説明は次のとおりです。「ハッカーは常にWebサイトやWebアプリケーションを侵害し、クレジットカード番号、社会保障番号、さらには医療記録などの機密データの宝庫でオフにする技術をハッキングの幅広いレパートリーで実験されている4クロス。サイトスクリプティングは、(また、XSSやCSSとして知られる)は、一般のVBScript、ActiveXの、HTML、またはFlashはに対して脆弱動的ページに、攻撃者が悪意のあるJavaScriptを埋め込むことができ、最も一般的なアプリケーション層ハッキング技術クロスサイトスクリプティングの一つであると考えられていますデータを収集するために、自分のマシン上でスクリプトを実行して、ユーザーをだます。XSSの使用が有効なユーザーの方に誤解されるか、または最後に悪質なコードを実行できる要求を作成し、操作したり、クッキーを盗む、個人情報を危険にさらす可能性があります-userシステムでは、データは通常、悪質なコンテンツを含むハイパーリンクとしてフォーマットされ、インターネット上の任意の可能な手段を介して配布されています。」 (会社のAcunetix)

 

プログラミングコードの欠陥は、FC2のURL」のファイル名で発生します。 FC2は、URLだけでファイル名の一部をフィルタリングします。ほぼすべてのURLが影響を受けますblog.fc2.com/tagドメインの下に影響を受けています。すなわちhttp://blog.fc2.com/tag/drug/
http://blog.fc2.com/tag//アメリカ/
http://blog.fc2.com/tag/tag/翻訳
http://blog.fc2.com/tag//>レシピブログに参加中♪

 

この脆弱性は、ユーザのログインなしで攻撃される可能性があります。試験は、Windows 7でのUbuntuでのFirefox(37.02)(14.04)およびIE(9.0.15)で行いました。

 

 

POCコード:
http://blog.fc2.com/tag/drug//“><img SRC = X onerror = alert( ‘justqdjing’)>
http://blog.fc2.com/tag//アメリカ// “> <IMG src = X onerror = alert( ‘justqdjing’)>
http://blog.fc2.com/tag/tag/翻訳// “> <IMG src = X onerror = alert( ‘justqdjing’)>
http://blog.fc2.com/tag//>レシピブログに参加中// “> <IMG src = X onerror =alert( ‘justqdjing’)>

 

 

 

脆弱性の公開:
これらの脆弱性は誰も答えていない2014年にrakuten-cert@rakuten.co.jpすることが報告されました。今までは、彼らはまだパッチを適用していないです。

 

 

バグを発見:
王ジン (Wang Jing)、数理科学研究部門(MAS)、物理的および数理科学科(SPMS)、南洋理工大学(NTU)、シンガポール。 (@justqdjing
http://www.tetraph.com/wangjing

Attachments area
Preview YouTube video FC2 fc2.com Online Website URLs XSS (cross site scripting) Vulnerabilities (Domain blog)

FC2 fc2.com Online Website URLs XSS (cross site scripting) Vulnerabilities (Domain blog)