Sunday, 10 May 2015

CVE-2014-9562 OptimalSite Content Management System (CMS) XSS (Cross-Site Scripting) Web Security Vulnerabilities















CVE-2014-9562 OptimalSite Content Management System (CMS) XSS (Cross-Site Scripting) Web Security Vulnerabilities



Exploit Title:  OptimalSite CMS /display_dialog.php image Parameter XSS Web Security Vulnerability
Vendor: OptimalSite
Product: OptimalSite Content Management System (CMS) 
Vulnerable Versions: V.1 V2.4
Tested Version: V.1 V2.4
Advisory Publication: January 24, 2015
Latest Update: January 31, 2015
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2014-9562
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
Credit: Jing Wang [School of Physical and Mathematical Sciences, Nanyang Technological University (NTU), Singapore] (@justqdjing)





Suggestion Details:


(1) Vendor & Product Description

Vendor: 
OptimalSite

Product & Version: 
OptimalSite Content Management System (CMS) 
V.1 
V2.4



Vendor URL & Download:
The product can be obtained from here,



Product Description Overview: 
"Content management system OptimalSite is an online software package that enables the management of information published on a website. OptimalSite consists of the system core and integrated modules, which allow expanding website possibilities and functionality. You may select a set of modules that suits your needs best. 

Website page structure
Website page structure is presented in a tree structure similar to Windows Explorer, so that several page levels can be created for each item on the menu.  The website's structure itself can be easily edited: you can create new website pages, delete unnecessary ones, and temporarily disable individual pages.

Website languages
OptimalSite may be used to create a website in different languages, the number of which is not limited. Different information may be presented in each separate language and the structure of pages in each language may also differ. 

WYSIWYG (What You See Is What You Get) text editor
Using this universal text editor makes posting and replacing information on the website effortless.   Even a minimum knowledge of MS Word and MS Excel will make it easy to use the tools of WYSIWYG text editor and implement your ideas. 

Search function in the system
By using search function system’s administrator is able to find any information that is published in administrative environment. It is possible to execute a search in the whole system and in separate its’ modules as well.

Recycle bin function
System administrator is able to delete useless data.  All deleted data is stored in recycle bin, so administrator can restore information anytime. "






(2) Vulnerability Details:
OptimalSite web application has a computer security bug problem. It can be exploited by stored XSS 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 the similar product 0-day vulnerabilities have been found by some other bug hunter researchers before. OptinalSite has patched some of them. "Openwall software releases and other related files are also available from the Openwall file archive and its mirrors. You are encouraged to use the mirrors, but be sure to verify the signatures on software you download. The more experienced users and software developers may use our CVSweb server to browse through the source code for most pieces of Openwall software along with revision history information for each source file. We publish articles, make presentations, and offer professional services." Openwall has published suggestions, advisories, solutions details related to XSS vulnerabilities.


(2.1) The code programming flaw occurs at "&image" parameter in "display_dialog.php" page.



















Saturday, 9 May 2015

Yahoo and Yahoo Japan May be Vulnerable to Spams















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.”

Thursday, 7 May 2015

Maxwell’s Formulation – Differential Forms on Euclidean Space

Maxwell’s Formulation – Differential Forms on Euclidean Space
Author: Jing Wang
Institute: School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore

image


One of the greatest advances in theoretical physics of the nineteenth century was Maxwell’s formulation of the the equations of electromagnetism. This article uses differential forms to solve a problem related to Maxwell’s formulation. The notion of differential form encompasses such ideas as elements of surface area and volume elements, the work exerted by a force, the flow of a fluid, and the curvature of a surface, space or hyperspace. An important operation on differential forms is exterior differentiation, which generalizes the operators div, grad, curl of vector calculus. the study of differential forms, which was initiated by E.Cartan in the years around 1900, is often termed the exterior differential calculus.However, Maxwell’s equations have many very important implications in the life of a modern person, so much so that people use devices that function off the principles in Maxwell’s equations every day without even knowing it.




Source:

http://mathstopic.blogspot.com/2015/05/maxwells-formulation-differential-forms.html




Delaunay Triangulation - From 2-D Delaunay to 3-D Delaunay

Delaunay Triangulation - From 2-D Delaunay to 3-D Delaunay
Author: Jing Wang
Institute: School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore





























Delaunay triangulation are widely used in scientific computing in many diverse applications. While there are numerous algorithms for computing triangulations, it is the favorable geometric properties of the Delaunay triangulation that make it so useful.


The fundamental property is the Delaunay criterion. In the case of 2-D triangulations, this is often called the empty circumcircle criterion. For a set of points in 2-D, a Delaunay triangulation of these points ensures the circumcircle associated with each triangle contains no other point in its interior. This property is important. In the illustration below, the circumcircle associated with T1 is empty. It does not contain a point in its interior. The circumcircle associated with T2 is empty. It does not contain a point in its interior. This triangulation is a Delaunay triangulation. This presentation discusses how to extend 2-D Delaunay to 3-D Delaynay.

 





Source: 

http://mathswift.blogspot.com/2015/05/delaunay-triangulation-from-2-d.html

Wednesday, 8 April 2015

水 - 生命、纯洁、宁静 - 美文诗歌
















水~~它意味着生命、纯洁、宁静……

水是最普通的东西。
风霜雨雪,都是水,不同状态的水。在我们的生活中它处处皆是,我们是如此的忽视它,竟忘记了它是如此的重要……

水是生命之源。
人自呱呱坠地,直至生命的终结,没有一刻可以离开它。当你远离水的时候,就像在沙漠之中,就会对它产生渴望与幻想。
地球上有75%被水所覆盖,要在浩瀚的宇宙中找寻一个地球的扩展空间,其中的一个决定因素就是那个星球上有没有液态水!

水是污浊的荡涤。
人们起床的第一项工作往往就是清洁一下自己,刷牙、洗脸,让我们每天以清新爽朗面对生活,这是水的功劳!
墨池,王羲之练字,久而久之,一池清水竟呈墨色。一池清水奉贤了自己的洁净,成就了一位况绝古今的大书法家。

山水近高天,水也为蒙尘的心洗礼!
青山绿水,高山流水,小桥流水,清江泛舟,只有在这种远离尘嚣的清新、宁静之中,人们才会忘记尘俗的勾心斗角,揭去负累的面具,素面朝天,才有了心灵的升华。

溶霜化雪渗入泥,
清净怀远呈智霖。
花红柳绿源头是,
荡尽尘嚣有冰心。

Sunday, 5 April 2015

醉清風 – 弦子 – 唯美空靈的音樂

 

 

 

 

 

 

 

 

 

 

 

 

 

 

醉清風 – 弦子 – 唯美空靈的音樂

喜歡醉清風空靈的意境,明月,清風,孤人,琴聲,把酒當歌,令人陶醉, 特制作壹視頻,以為回憶。萬事萬物,誰是誰非,誰又能說清道明


歌曲 & 歌詞

醉清風 歌手:張弦子

月色正朦朧

與清風把酒相送

太多的詩頌

醉生夢死也空

和妳醉後纏綿

妳曾記得

亂了分寸的心動

怎麼只有這首歌

會讓妳輕聲合

醉清風

夢境的虛有

琴聲壹曲相送

還有沒有情濃

風花雪月顏容

和妳醉後纏綿

妳曾記得

亂了分寸的心動

蝴蝶去向無影蹤

舉杯消愁意正濃

無人寵

是我想得太多

猶如飛蛾撲火那麼沖動

最後

還有壹盞燭火

燃盡我

曲終人散

誰無過錯

我看破

月色正朦朧 與清風把酒相送

太多的詩頌 醉生夢死夜空

和妳醉後纏綿

妳曾記得

夢境的虛有琴聲壹曲相送

還有沒有情濃風花雪月顏容

和妳醉後纏綿

妳曾記得

夢境的虛有

琴聲壹曲相送

還有沒有情濃

風花雪月顏容

和妳醉後纏綿

妳曾記得

亂了分寸的心動

蝴蝶去向無影蹤

舉杯消愁意正濃

無人寵

是我想得太多

猶如飛蛾撲火那麼沖動

最後

還有壹盞燭火

燃盡我

曲終人散

誰無過錯

我看破