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Office 2007: privilege escalation via IME Japanese
Synthesis of the vulnerability
An attacker can use a vulnerability of the IME Japanese of Office 2007, in order to escalate his privileges.
Impacted systems: Office, Access, Office Communicator, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity of this alert: 2/4.
Consequences of an intrusion: administrator access/rights, privileged access/rights.
Pirate's origin: document.
Creation date: 12/11/2014.
Références of this alert: 2992719, CERTFR-2014-AVI-476, CVE-2014-4077, MS14-078, VIGILANCE-VUL-15623.
Description of the vulnerability
The Office 2007 product can be configured with a Japanese IME (Input Method Editor), in order to enter Japanese characters.
However, a special file can be used to escape from the sandbox.
An attacker can therefore use a vulnerability of the IME Japanese of Office 2007, in order to escalate his privileges.
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