Vigil@nce: Opera, buffer overflow of file
November 2008 by Vigil@nce
An attacker can create a HTML file containing a long "file://" uri in order to execute code when it is locally opened.
Consequences: user access/rights
Means of attack: 1 attack
Ability of attacker: technician (2/4)
Confidence: contradictory sources (1/5)
Diffusion of the vulnerable configuration: high (3/3)
Creation date: 18/11/2008
Opera does not accept to open "file://" uris from internet: they can only be used from a file opened on the local computer.
If the uri size is over 16kbytes, a buffer overflow occurs and leads to code execution.
An attacker can therefore invite the victim to open a local HTML file with Opera in order to execute code on his computer.
Identifiers: BID-32323, VIGILANCE-VUL-8252