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Mozilla Foundation Security Advisory 2008-08

Title: File action dialog tampering
Impact: Moderate
Announced: February 7, 2008
Reporter: Michal Zalewski
Products: Firefox

Fixed in: Firefox 2.0.0.12

Description

Security researcher Michal Zalewski demonstrated that timer-enabled security dialogs can be subverted by attackers using JavaScript to change the window focus. Zalewski showed that a user could be tricked into confirming a security dialog of this type by bringing the dialog back into focus right before a user clicked in a predictable time and place.

Workaround

Disable JavaScript until a version containing these fixes can be installed.

References