Image upload forms used to hijack websites

In the past days I came across a stimulating blog post titled “Dissecting a Multistage Web Attack that uses the recent IE7 0day”. The authors described how a vulnerable web application was then able to infect web browsers visiting the infected website. The attackers, who…

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How can any web page log you off all other websites?

A recent post on “Full-Disclosure” mailing list referenced a web page called “Session Destroyer”. This web page is a demonstration by Kristian Erik Hermansen that promises to make logging off various popular websites very easy. How does it work? This static html page simply contains…

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American Express website vulnerable… again!

A few days ago a Cross-site-scripting vulnerability was discovered and reported on the American Express Site. A XSS vulnerability can allow attackers to steal user authentication cookies from americanexpress.com, thus leading to an account hijack. As web-security consultant Joshua D.Abraham said, web developers addressed only…

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Why upgrade PHP to 5.2.8? Part 2

To read part 1 of this article please refer to the previous post. Note: a large number of vulnerabilities described in this post can be exploited to bypass safe_mode. It is not recommended to rely on this PHP functionality for the security of your web…

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What do American Express and Facebook have in common?

Cross Site Scripting seems to be the word of the past few days with high profile sites getting featured on the technology news sites. ZDNet reported how Facebook just fixed four XSS security flaws affecting their developer’s page, the iPhone login page, the new users…

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