Magic Byte Bug: Remote Bypass of Virus Scanning in Kaspersky 5.0.372

Magic Byte Bug: Remote Bypass of Virus Scanning in Kaspersky 5.0.372

CVE-2005-3376 · MEDIUM Severity

AV:N/AC:H/AU:N/C:P/I:P/A:P

Multiple interpretation error in Kaspersky 5.0.372 allows remote attackers to bypass virus scanning via a file such as BAT, HTML, and EML with an "MZ" magic byte sequence which is normally associated with EXE, which causes the file to be treated as a safe type that could still be executed as a dangerous file type by applications on the end system, as demonstrated by a "triple headed" program that contains EXE, EML, and HTML content, aka the "magic byte bug."

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