Category Archives: 0Day

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


 

PhotoPost PHP 4.8c Cookie Based Stored XSS (Cross-site Scripting) Web Application 0-Day Bug

PhotoPost PHP 4.8c Cookie Based Stored XSS (Cross-site Scripting) Web Application 0-Day Bug

 

Exploit Title: PhotoPost PHP __utmz Cookie Stored XSS Web Security Vulnerability

Product: PhotoPost PHP

Vendor: PhotoPost

Vulnerable Versions: 4.8c 4.8.6 4.8.5 4.8.2 3.1.1 vB3

Tested Version: 4.8c vB3

Advisory Publication: July 25, 2015

Latest Update: July 28, 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)

 

 

photopost_cookie_xss1

 

 

Caution Details:

 

(1) Vendor & Product Description:

Vendor:

PhotoPost

 

Product & Vulnerable Versions:

PhotoPost PHP

4.8c 4.8.6 4.8.5 4.8.2 3.1.1 vB3

 

Vendor URL & Download:

Product can be obtained from here,

http://www.photopost.com/featuresphp.html

 

Product Introduction Overview:

“Your search to find the best photo gallery has led you to the most feature rich, best performing, and most widely used gallery available today. PhotoPost is the best way to offer your users the ability to upload, show off, share, discuss, and rate photos and videos on your site. We originally created PhotoPost in 2001 for TechIMO.com, our parent company’s own tech discussion website with 2 Million forum posts and 200,000 users, and within weeks we were inundated with requests, so we decided to develop it into a product. Over the past 8 years, PhotoPost has undergone more than 100 “dot” updates by a team of expert developers to add features, tweak performance, and maximize stability. Always in high demand, PhotoPost has been purchased by a staggering 14,500 websites. PhotoPost is most popular amongst vBulletin forum owners. That’s because we designed PhotoPost from the beginning to integrate efficiently with a website’s existing vBulletin forum, offering users one integrated login and registration instead of two, stylesheet integration, and other enhancements. But what PhotoPost does well for vBulletin owners, it does equally well for those that wish to integrate a gallery with many other forum types, or to simply add a photo gallery to their website with no forum at all. ”

 

 

 

(2) Vulnerability Details:

PhotoPost PHP web application has a computer security problem. Hackers can exploit it by 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. PhotoPost PHP 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 XSS vulnerabilities and cyber intelligence recommendations.

 

 

(2.1) The code flaw occurs at “|utmcct” parameter in “__utmz” Cookie.

For example, if a victim clicks the link below.

http://localhost/gallery/showphoto.php/photo/846/sort/'”><marquee><h1>test</h1></marquee><svg/onload=prompt(/tetraph/)&gt;

The content of “__utmz” cookie will be the following:

__utma 194200300.1295483682.1438243020.1438243020.1438245659.2

__utmc 194200300

__utmz 194200300.1438243020.1.1.utmccn=(referral)|utmcsr=mgs-on-track.com|utmcct=/gallery/showphoto.php/photo/846/sort/1%27%22%3E%3Cimg%20src=x%20onerror=alert%28%27tetraph%27%29%3E%3Cmarquee%3E%3Ch1%3Etest%3C/h1%3E%3C/marquee%3E|utmcmd=referral

__qca P0-814178849-1438243024810

__utmb 194200300

bbsessionhash 1683dd3bd3edffbd8383db382f025eba

bblastvisit 1438246612

So the malicious code can work in the user’s browser for long time.

 

 

(2.2) Forum Integrations

“PhotoPost can optionally integrate as an add-on to an existing forum on your site, and we do this extremely well. PhotoPost is a perfect fit with a forum, because sharing and discussing photos within PhotoPost comes naturally for a forum community.

With our forum integration, your users will use their existing forum account to login to PhotoPost, without needing to register again and maintain a separate account. Additionally, we offer stylesheet integrations with several forums to easily setup your PhotoPost gallery to match your forum’s look and feel, and with vBulletin 3.x we offer several additional enhancements.”

Forum Software User Login Stylesheets Enhanced*

vBulletin 5.x

vBulletin 4.x

vBulletin 3.x

Xenforo 1.x

UBBThreads 6.X

UBBThreads 7.X

InvisionBoard 1.0

InvisionBoard 2.0

InvisionBoard 3.0

FusionBB

MyBB 1.0

SMF 1.05 and up

SMF 2.0 and up

WowBB

e107

PHPBB 2.0

PHPBB 3.0

WordPress 3.x

vBulletin 2.x

DCForums +

IkonBoard

Nuke

PostNuke

Mambo

XMB Forums

(Src: http://www.photopost.com/sites_frame.pl?http://www.photopost.com/photopost/adm-index.php)

 

 

 

 

References:
http://tetraph.com/security/xss-vulnerability/photopost-php/
https://www.mail-archive.com/fulldisclosure%40seclists.org/msg02357.html
http://computerobsess.blogspot.com/2015/07/photopost-php-48c-cookie
http://marc.info/?l=full-disclosure&m=143841053704734&w=4
http://lists.openwall.net/full-disclosure/2015/08/01/1
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/2300
https://hackertopic.wordpress.com/2015/07/30/photopost-xss/
http://seclists.org/fulldisclosure/2015/Aug/0
http://static-173-79-223-25.washdc.fios.verizon.net/?l=full-disclosure
http://en.hackdig.com/08/26974.htm

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/

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

 

 

 

The New York Times Old Articles Can Be Exploited by XSS Attacks (Almost all Article Pages Before 2013 Are Affected)

 
 

binary_data_illustratio_450

 

Domain:
http://www.nytimes.com/

 

“The New York Times (NYT) is an American daily newspaper, founded and continuously published in New York City since September 18, 1851, by the New York Times Company. It has won 114 Pulitzer Prizes, more than any other news organization. The paper’s print version has the largest circulation of any metropolitan newspaper in the United States, and the second-largest circulation overall, behind The Wall Street Journal. It is ranked 39th in the world by circulation. Following industry trends, its weekday circulation has fallen to fewer than one million daily since 1990. Nicknamed for years as “The Gray Lady”, The New York Times is long regarded within the industry as a national “newspaper of record”. It is owned by The New York Times Company. Arthur Ochs Sulzberger, Jr., (whose family (Ochs-Sulzberger) has controlled the paper for five generations, since 1896), is both the paper’s publisher and the company’s chairman. Its international version, formerly the International Herald Tribune, is now called the International New York Times. The paper’s motto, “All the News That’s Fit to Print”, appears in the upper left-hand corner of the front page.” (Wikipedia)

 

 

 

(1) Vulnerability Description:

The New York Times has a computer cyber security problem. Hacker can exploit its users by XSS bugs.

 

The code program flaw occurs at New York Times’s URLs. Nytimes (short for New York Times) uses part of the URLs to construct its pages. However, it seems that Nytimes does not filter the content used for the construction at all before 2013.

 

Based on Nytimes’s Design, Almost all URLs before 2013 are affected (All pages of articles). In fact, all article pages that contain “PRINT” button, “SINGLE PAGE” button, “Page *” button, “NEXT PAGE” button are affected.

 

Nytimes changed this mechanism since 2013. It decodes the URLs sent to its server. This makes the mechanism much safer now.

 

However, all URLs before 2013 are still using the old mechanism. This means almost all article pages before 2013 are still vulnerable to XSS attacks. I guess the reason Nytimes does not filter URLs before is cost. It costs too much (money & human capital) to change the database of all posted articles before.

 

 

nytimes_2010_xss

 

nytimes_2011_xss

 

 

 

 

Living POCs Codes:

http://www.nytimes.com/2012/02/12/sunday-review/big-datas-impact-in-the-world.html//’ “><img src=x onerror=prompt(/justqdjing/)>

http://www.nytimes.com/2011/01/09/travel/09where-to-go.html//’ “><img src=x onerror=prompt(/justqdjing/)>?pagewanted=all&_r=0

http://www.nytimes.com/2010/12/07/opinion/07brooks.html//’ “><img src=x onerror=prompt(/justqdjing/)>

http://www.nytimes.com/2009/08/06/technology/06stats.html//’ “><img src=x onerror=prompt(/justqdjing/)>

http://www.nytimes.com/2008/07/09/dining/091crex.html//’ “><img src=x onerror=prompt(/justqdjing/)>

http://www.nytimes.com/2007/11/14/opinion/lweb14brain.html//’ “><img src=x onerror=prompt(/justqdjing/)>

 

 

 

(2) Vulnerability Analysis:
Take the following link as an example,
http://www.nytimes.com/2012/02/12/sunday-review/big-datas-impact-in-the-world.html/“><vulnerabletoattack

 

It can see that for the page reflected, it contains the following codes. All of them are vulnerable.

 

<li class=”print”>

<a href=”/2012/02/12/sunday-review/big-datas-impact-in-the-world.html/”><vulnerabletoattack?pagewanted=print”>Print</testtesttest?pagewanted=print”></a>

</li>

 

<li class=”singlePage”>

<a href=”/2012/02/12/sunday-review/big-datas-impact-in-the-world.html/”><testtesttest?pagewanted=all”> Single Page</vulnerabletoattack?pagewanted=all”></a>

</li>

 

<li> <a onclick=”s_code_linktrack(‘Article-MultiPagePageNum2′);” title=”Page 2″ href=”/2012/02/12/sunday-review/big-datas-impact-in-the-world.html/”><vulnerabletoattack?pagewanted=2″>2</testtesttest?pagewanted=2″></a>

</li>

 

<li> <a onclick=”s_code_linktrack(‘Article-MultiPagePageNum3′);” title=”Page 3″ href=”/2012/02/12/sunday-review/big-datas-impact-in-the-world.html/”><vulnerabletoattack?pagewanted=3″>3</testtesttest?pagewanted=3″></a>

</li>

 

<a class=”next” onclick=”s_code_linktrack(‘Article-MultiPage-Next’);” title=”Next Page” href=”/2012/02/12/sunday-review/big-datas-impact-in-the-world.html/”><vulnerabletoattack?pagewanted=2″>Next Page »</testtesttest?pagewanted=2″></a>

 

 

 

 

(3) What is XSS?

Cross-site scripting (XSS) is a type of computer security vulnerability typically found in Web applications. XSS enables attackers to inject client-side script into Web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same origin policy.

 

“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 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.

 

 

 

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

 

 

 

 

More Details:
http://lists.openwall.net/full-disclosure/2014/10/16/2
http://www.tetraph.com/blog/xss-vulnerability/new-york-times-xss
http://permalink.gmane.org/gmane.comp.security.fulldisclosure/1102
http://webcabinet.tumblr.com/post/121907302752/new-york-times-xss
http://www.inzeed.com/kaleidoscope/xss-vulnerability/new-york-times-xss
https://progressive-comp.com/?l=full-disclosure&m=141343993908563&w=1
http://webtech.lofter.com/post/1cd3e0d3_6f57c56
http://tetraph.blog.163.com/blog/static/2346030512014101270479/
https://vulnerabilitypost.wordpress.com/2014/11/01/new-york-times-xss
http://lifegrey.tumblr.com/post/121912534859/tous-les-liens-vers-les-articles
http://securityrelated.blogspot.com/2014/10/new-york-times-design.html
https://mathfas.wordpress.com/2014/11/01/new-york-times-xss
http://computerobsess.blogspot.com/2014/10/new-york-times-design.html
http://whitehatview.tumblr.com/post/103788276286/urls-to-articles-xss
http://diebiyi.com/articles/security/xss-vulnerability/new-york-times-xss

 

 

 

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