Cryptography

Download The Tangled Web: A Guide to Securing Modern Web Applications by Michal Zalewski PDF

Posted On April 12, 2017 at 12:27 am by / Comments Off on Download The Tangled Web: A Guide to Securing Modern Web Applications by Michal Zalewski PDF

By Michal Zalewski

"Thorough and finished assurance from one of many finest specialists in browser security."
--Tavis Ormandy, Google Inc.

Modern net purposes are equipped on a tangle of applied sciences which have been built over the years after which haphazardly pieced jointly. each piece of the internet software stack, from HTTP requests to browser-side scripts, comes with very important but sophisticated protection outcomes. to maintain clients secure, it really is crucial for builders to with a bit of luck navigate this landscape.

In The Tangled Web, Michal Zalewski, one of many world's most sensible browser protection specialists, deals a compelling narrative that explains precisely how browsers paintings and why they're essentially insecure. instead of dispense simplistic suggestion on vulnerabilities, Zalewski examines the whole browser protection version, revealing susceptible issues and delivering an important info for shoring up net software protection. You'll learn the way to:
* practice universal yet strangely complicated projects reminiscent of URL parsing and HTML sanitization
* Use glossy security measures like Strict delivery safeguard, content material defense coverage, and Cross-Origin source Sharing
* Leverage many variations of the same-origin coverage to securely compartmentalize complicated internet functions and safeguard person credentials in case of XSS bugs
* construct mashups and embed instruments with out getting stung via the tough body navigation policy
* Embed or host user-supplied content material with no working into the capture of content material sniffing
for fast reference, "Security Engineering Cheat Sheets" on the finish of every bankruptcy provide prepared strategies to difficulties you're probably to come across. With assurance extending so far as deliberate HTML5 gains, The Tangled net can assist you create safe net functions that stand the try of time.

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The Tangled Web: A Guide to Securing Modern Web Applications

"Thorough and accomplished insurance from one of many greatest specialists in browser protection. "
--Tavis Ormandy, Google Inc.

Modern net purposes are equipped on a tangle of applied sciences which have been constructed through the years after which haphazardly pieced jointly. each piece of the net program stack, from HTTP requests to browser-side scripts, comes with very important but sophisticated safety outcomes. to maintain clients secure, it's crucial for builders to expectantly navigate this landscape.

In The Tangled internet, Michal Zalewski, one of many world's most sensible browser safeguard specialists, bargains a compelling narrative that explains precisely how browsers paintings and why they're essentially insecure. instead of dispense simplistic suggestion on vulnerabilities, Zalewski examines the total browser defense version, revealing susceptible issues and supplying an important details for shoring up internet program safeguard. You'll find out how to:
* practice universal yet strangely advanced projects corresponding to URL parsing and HTML sanitization
* Use glossy safety features like Strict delivery safety, content material protection coverage, and Cross-Origin source Sharing
* Leverage many variations of the same-origin coverage to soundly compartmentalize complicated net purposes and safeguard consumer credentials in case of XSS insects
* construct mashups and embed contraptions with no getting stung via the difficult body navigation coverage
* Embed or host user-supplied content material with no operating into the seize of content material sniffing
for fast reference, "Security Engineering Cheat Sheets" on the finish of every bankruptcy supply prepared strategies to difficulties you're probably to come across. With insurance extending so far as deliberate HTML5 positive aspects, The Tangled internet can help you create safe internet functions that stand the try out of time.

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Sample text

This could not be good. These facts, combined with the sudden emergence of Apple’s Safari browser and perhaps Opera’s advances in the world of smartphones, must have had Microsoft executives scratching their heads. They had missed the early signs of the importance of the Internet in the 1990s; surely they couldn’t afford to repeat the mistake. Microsoft put some steam behind Internet Explorer development again, releasing drastically improved and somewhat more secure versions 7, 8, and 9 in rapid succession.

Other browsers may transmit FTP credentials in noncompliant percent-encoded form or simply strip any problematic characters later on. 26 Chapter 2 A similar laid-back approach can be seen with DNS names. ”, and “-”, as defined in RFC 10355), but many browsers will happily ask the underlying operating system resolver to look up almost anything, and the operating system will usually also not make a fuss. The exact set of characters accepted in the hostname and passed to the resolver varies from client to client.

In addition to true URLs used for content retrieval, several classes of pseudo-URLs use a similar syntax to provide convenient access to browser-level features, including the integrated scripting engine, several special documentrendering modes, and so on. Perhaps unsurprisingly, these pseudo-URL actions can have a significant impact on the security of any site that decides to link to them. The ability to figure out how a particular URL will be interpreted by the browser, and the side effects it will have, is one of the most basic and common security tasks attempted by humans and web applications alike, but it can be a problematic one.

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