Remote Malware Detection Bypass in Secure Computing Secure Web Gateway

CVE-2008-5540

What is CVE-2008-5540?

The Secure Computing Secure Web Gateway, particularly when used with Internet Explorer versions 6 or 7, is susceptible to a vulnerability that allows remote attackers to evade malware detection. This is accomplished by manipulating the HTML document, wherein attackers can include an MZ header at the beginning of the document. Furthermore, they can disguise the file’s true nature by altering its extension to either have no extension at all, or to use misleading extensions like .txt or .jpg. This exploitation technique can potentially lead to the execution of malicious payloads that are hidden within compromised documents, highlighting the importance of robust web security practices.

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