Mozilla fails to enforce security restrictions on cloned base objects. This may allow a remote attacker to execute arbitrary code on a vulnerable web browser.
Mozilla insecurely clones base objects in a prototype chain causing an access control vulnerability. A remote attacker with control of an object with few privileges may be able to access methods and properties stored in more privileged base objects higher up the prototype chain.
A remote attacker may be able to traverse the prototype chain to access privileged objects. Once access is gained, the attacker may be able to execute arbitrary code with elevated privileges.
This vulnerability was reported by The Mozilla Foundation. The Mozilla Foundation credits moz_bug_r_a4 and shutdown for reporting this issue.
This document was written by Jeff Gennari.
|Date First Published:||2005-08-01|
|Date Last Updated:||2005-08-15 12:49 UTC|