AppCheck Security Blog

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**CRITICAL RISK** CVE-2023-4966 Cloud Software Group (Citrix) NetScaler ADC and NetScaler Gateway – Unauthorised Access to Critical Data and Credentials due to Improper Restriction of Operations within the Bounds of a Memory Buffer

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This article covers recent vulnerabilities found to be actively exploited. They are categorised based not only on the category of exploitation, but their impact, and versions affected. This article also informs on any official fix and remediation guidance for the listed vulnerabilities.
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“Patch Tuesday” is an unofficial term used to refer to the second Tuesday of each month, when Microsoft, Adobe, Oracle and others regularly release software patches for their software products. Critical security updates are occasionally released outside of the normal Patch Tuesday cycle, but these are known as “Out-of-band” releases. Security updates for May 14th 2024 – critical bypass of ‘smartscreen’ protection mechanism among 149 vulnerabilities this month.
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In this blog post, we delve into the complexities surrounding one such data integrity technique: HTTP message signing. We explore the different specifications currently in use, dissecting their mechanisms and operations. Additionally, we examine the challenges the techniques may present when scanning web applications and discuss how AppCheck has solved these problems to integrate message signing support into our vulnerability scanner.
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Our latest product update enhances our authentication on the AppCheck scanner with new extended support being added for Digest and NTLM authentication. As always, if you require any more information on this topic or want to see what unexpected vulnerabilities AppCheck can pick up in your website and applications then please contact us: info@localhost.
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This article covers recent vulnerabilities found to be actively exploited. They are categorised based not only on the category of exploitation, but their impact, and versions affected. This article also informs on any official fix and remediation guidance for the listed vulnerabilities.
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In this blog post we look back at the origin of the term “hacking”, as well as how activities that might be described as hacking have existed throughout history, even prior to the advent of computer systems – and what if anything these can teach us today.

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