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Vigil@nce: MS Excel, remote code execution via "Index Array"

August 2008 by Vigil@nce

SYNTHESIS

An attacker can create an Excel spreadsheet, in order to execute code on victim’s computer.

Gravity: 3/4

Consequences: privileged access/rights

Provenance: document

Means of attack: no proof of concept, no attack

Ability of attacker: expert (4/4)

Confidence: confirmed by the editor (5/5)

Diffusion of the vulnerable configuration: high (3/3)

Creation date: 13/08/2008

Identifier: VIGILANCE-VUL-8016

IMPACTED PRODUCTS

- Microsoft Excel [confidential versions]

DESCRIPTION

While opening an xls file, MS Excel loads the content of the document without any specific checking on the file.

A file containing an malicious array index value can be used to execute code.

An attacker can therefore create a malicious Excel spreadsheet, send it to a victim, and if this last open it, code can be executed on the computer.

CHARACTERISTICS

Identifiers: 954066, CVE-2008-3005, MS08-043, VIGILANCE-VUL-8016

https://vigilance.aql.fr/tree/1/8016




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