Compass Security Blog

Offensive Defense

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Exchange Forensics

Introduction The number one form of communication in corporate environments is email. Alone in 2015, the number of business emails sent and received per day were estimated to be over 112 billion [1] and employees spend on average 13 hours per week in their email inbox [2]. Unfortunately, emails are at times also misused for illegitimate […]

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Microsoft Security Bulletin MS13-067 – Critical

As part of today’s monthly patch day, Microsoft fixed an issue I reported in September 2012 around (ASP).NET and SharePoint. The vulnerability opens a new type of attack surface on ASP.NET if a given precondition regarding the Viewstate field is met. The impact is at least a breach of data integrity on the server side resulting […]

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