|By Douglas Crockford||
|September 22, 2010 07:00 PM EDT||
In an email exchange with Jeremy Geelan, here is what Crockford (pictured above) says, in his own words...
"The most serious defect in web browsers is the incorrectly named Cross Site Scripting (XSS) vulnerability. XSS enables an attacker to inject code into a web page that runs with the authority of the site that issued the page. The rights granted to the attacker include the right to interact with the server, the right to scrape data from the page, the right to modify the page, the right to dialog with the user, the right to load additional scripts from any server in the world, and the right to transmit the data it obtained from the server, the page, and the user to any server in the world. This is dangerous stuff.
XSS is misnamed for two reasons. First, it is not necessary for a second site to be involved. Sites that can reflect user generated content can be attacked without the participation of a second site. But more importantly, XSS suggests that cross site scripting is a bad thing. In fact, cross site scripting is a highly beneficial thing. It is what enables mashups. Cross site scripting enables Ajax libraries, analytics, and advertising. The problem is that the browser's security model did not anticipate mashups.
The second problem is that all scripts on a page run with the same authority. The browser has a better security model than desktop systems because it can distinguish between the interests of the user and the interests of the program (or website). But the browser failed to anticipate that there could be other scripts that represent additional interests. As a result, the browser is confused, treating all scripts as equally trusted to represent a site, even when it has loaded scripts from different sites.
This problem first appeared 15 years ago in Netscape Navigator 2. Those developers could be forgiven for having not foreseen the way that browsers would ultimately be used. But to have this problem incorporated into web standards and left in place for 15 years is intolerable. This problem must be fixed.
The HTML5 proposal does not attempt to correct the XSS problem and actually makes it worse in three ways:1. HTML5 is huge and bloated. It is likely that this bloat will create new opportunities for malicious script injection.The fundamental mistake in HTML5 was one of prioritization. It should have tackled the browser's most important problem first. Once the platform was secured, then shiny new features could be carefully added.
2. HTML5 adds powerful new capabilities (such as local database and cross-site networking) that become fully available to the attacker.
3. HTML5 is a large effort. The solution of the XSS problem may have to wait until HTML5 is completed, which could be years away.
That course is still available to us. My recommendation is that we suspend the current HTML5 activity. We start over with a new charter: To quickly and effectively repair the XSS vulnerability. Then we can mine the bloated HTML5 set for features that have high value and which do not introduce new security vulnerabilities.
HTML5 has a lot of momentum and appears to be doomed to succeed. I think the wiser course is to get it right first. We have learned the hard way that once an error gets into a web standard, it is really hard to get it out.
What do you think? Add your feedback below.
With 15% of enterprises adopting a hybrid IT strategy, you need to set a plan to integrate hybrid cloud throughout your infrastructure. In his session at 18th Cloud Expo, Steven Dreher, Director of Solutions Architecture at Green House Data, discussed how to plan for shifting resource requirements, overcome challenges, and implement hybrid IT alongside your existing data center assets. Highlights included anticipating workload, cost and resource calculations, integrating services on both sides...
Jul. 26, 2016 09:00 PM EDT Reads: 2,011
Manufacturers are embracing the Industrial Internet the same way consumers are leveraging Fitbits – to improve overall health and wellness. Both can provide consistent measurement, visibility, and suggest performance improvements customized to help reach goals. Fitbit users can view real-time data and make adjustments to increase their activity. In his session at @ThingsExpo, Mark Bernardo Professional Services Leader, Americas, at GE Digital, discussed how leveraging the Industrial Internet a...
Jul. 26, 2016 08:00 PM EDT Reads: 272
Big Data engines are powering a lot of service businesses right now. Data is collected from users from wearable technologies, web behaviors, purchase behavior as well as several arbitrary data points we’d never think of. The demand for faster and bigger engines to crunch and serve up the data to services is growing exponentially. You see a LOT of correlation between “Cloud” and “Big Data” but on Big Data and “Hybrid,” where hybrid hosting is the sanest approach to the Big Data Infrastructure pro...
Jul. 26, 2016 07:15 PM EDT Reads: 1,925
"My role is working with customers, helping them go through this digital transformation. I spend a lot of time talking to banks, big industries, manufacturers working through how they are integrating and transforming their IT platforms and moving them forward," explained William Morrish, General Manager Product Sales at Interoute, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 26, 2016 06:30 PM EDT Reads: 2,110
A critical component of any IoT project is what to do with all the data being generated. This data needs to be captured, processed, structured, and stored in a way to facilitate different kinds of queries. Traditional data warehouse and analytical systems are mature technologies that can be used to handle certain kinds of queries, but they are not always well suited to many problems, particularly when there is a need for real-time insights.
Jul. 26, 2016 05:45 PM EDT Reads: 1,821
The best-practices for building IoT applications with Go Code that attendees can use to build their own IoT applications. In his session at @ThingsExpo, Indraneel Mitra, Senior Solutions Architect & Technology Evangelist at Cognizant, provided valuable information and resources for both novice and experienced developers on how to get started with IoT and Golang in a day. He also provided information on how to use Intel Arduino Kit, Go Robotics API and AWS IoT stack to build an application tha...
Jul. 26, 2016 04:30 PM EDT Reads: 1,080
IoT generates lots of temporal data. But how do you unlock its value? You need to discover patterns that are repeatable in vast quantities of data, understand their meaning, and implement scalable monitoring across multiple data streams in order to monetize the discoveries and insights. Motif discovery and deep learning platforms are emerging to visualize sensor data, to search for patterns and to build application that can monitor real time streams efficiently. In his session at @ThingsExpo, ...
Jul. 26, 2016 04:30 PM EDT Reads: 1,011
You think you know what’s in your data. But do you? Most organizations are now aware of the business intelligence represented by their data. Data science stands to take this to a level you never thought of – literally. The techniques of data science, when used with the capabilities of Big Data technologies, can make connections you had not yet imagined, helping you discover new insights and ask new questions of your data. In his session at @ThingsExpo, Sarbjit Sarkaria, data science team lead ...
Jul. 26, 2016 04:00 PM EDT Reads: 1,027
Extracting business value from Internet of Things (IoT) data doesn’t happen overnight. There are several requirements that must be satisfied, including IoT device enablement, data analysis, real-time detection of complex events and automated orchestration of actions. Unfortunately, too many companies fall short in achieving their business goals by implementing incomplete solutions or not focusing on tangible use cases. In his general session at @ThingsExpo, Dave McCarthy, Director of Products...
Jul. 26, 2016 03:45 PM EDT Reads: 1,716
Amazon has gradually rolled out parts of its IoT offerings in the last year, but these are just the tip of the iceberg. In addition to optimizing their back-end AWS offerings, Amazon is laying the ground work to be a major force in IoT – especially in the connected home and office. Amazon is extending its reach by building on its dominant Cloud IoT platform, its Dash Button strategy, recently announced Replenishment Services, the Echo/Alexa voice recognition control platform, the 6-7 strategic...
Jul. 26, 2016 03:15 PM EDT Reads: 354
WebRTC is bringing significant change to the communications landscape that will bridge the worlds of web and telephony, making the Internet the new standard for communications. Cloud9 took the road less traveled and used WebRTC to create a downloadable enterprise-grade communications platform that is changing the communication dynamic in the financial sector. In his session at @ThingsExpo, Leo Papadopoulos, CTO of Cloud9, discussed the importance of WebRTC and how it enables companies to focus...
Jul. 26, 2016 03:15 PM EDT Reads: 923
Verizon Communications Inc. (NYSE, Nasdaq: VZ) and Yahoo! Inc. (Nasdaq: YHOO) have entered into a definitive agreement under which Verizon will acquire Yahoo's operating business for approximately $4.83 billion in cash, subject to customary closing adjustments. Yahoo informs, connects and entertains a global audience of more than 1 billion monthly active users** -- including 600 million monthly active mobile users*** through its search, communications and digital content products. Yahoo also co...
Jul. 26, 2016 02:30 PM EDT Reads: 522
"There's a growing demand from users for things to be faster. When you think about all the transactions or interactions users will have with your product and everything that is between those transactions and interactions - what drives us at Catchpoint Systems is the idea to measure that and to analyze it," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York Ci...
Jul. 26, 2016 01:45 PM EDT Reads: 1,996
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
Jul. 26, 2016 10:15 AM EDT Reads: 1,190
Is your aging software platform suffering from technical debt while the market changes and demands new solutions at a faster clip? It’s a bold move, but you might consider walking away from your core platform and starting fresh. ReadyTalk did exactly that. In his General Session at 19th Cloud Expo, Michael Chambliss, Head of Engineering at ReadyTalk, will discuss why and how ReadyTalk diverted from healthy revenue and over a decade of audio conferencing product development to start an innovati...
Jul. 26, 2016 09:15 AM EDT Reads: 1,020
It’s 2016: buildings are smart, connected and the IoT is fundamentally altering how control and operating systems work and speak to each other. Platforms across the enterprise are networked via inexpensive sensors to collect massive amounts of data for analytics, information management, and insights that can be used to continuously improve operations. In his session at @ThingsExpo, Brian Chemel, Co-Founder and CTO of Digital Lumens, will explore: The benefits sensor-networked systems bring to ...
Jul. 26, 2016 08:45 AM EDT Reads: 1,555
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Jul. 26, 2016 08:45 AM EDT Reads: 633
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
Jul. 26, 2016 08:45 AM EDT Reads: 1,325
There will be new vendors providing applications, middleware, and connected devices to support the thriving IoT ecosystem. This essentially means that electronic device manufacturers will also be in the software business. Many will be new to building embedded software or robust software. This creates an increased importance on software quality, particularly within the Industrial Internet of Things where business-critical applications are becoming dependent on products controlled by software. Qua...
Jul. 26, 2016 06:15 AM EDT Reads: 1,438
SYS-CON Events has announced today that Roger Strukhoff has been named conference chair of Cloud Expo and @ThingsExpo 2016 Silicon Valley. The 19th Cloud Expo and 6th @ThingsExpo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "The Internet of Things brings trillions of dollars of opportunity to developers and enterprise IT, no matter how you measure it," stated Roger Strukhoff. "More importantly, it leverages the power of devices and the Interne...
Jul. 26, 2016 05:15 AM EDT Reads: 2,130