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Vigil@nce: Internet Explorer, vulnerabilities of the password manager

December 2008 by Vigil@nce

Several vulnerabilities or weaknesses of the password manager
could be used by an attacker to obtain the password of a site.

 Gravity: 2/4
 Consequences: data reading
 Provenance: internet server
 Means of attack: no proof of concept, no attack
 Ability of attacker: expert (4/4)
 Confidence: unique source (2/5)
 Diffusion of the vulnerable configuration: medium (2/3)
 Number of vulnerabilities in this bulletin: 16
 Creation date: 16/12/2008

IMPACTED PRODUCTS

 Microsoft Internet Explorer

DESCRIPTION

The password manager is used to store user passwords. It
automatically fills user’s password in web sites forms. This
feature has several vulnerabilities or weaknesses.

The password is entered in a form belonging to another web site.
[grav:2/4]

The password of a second web site can overwrite the first
password. [grav:1/4]

The password is entered in a form belonging to another web site,
without displaying a warning. [grav:1/4]

The password is entered in a form with a different access path.
[grav:2/4]

The password of a second access path can overwrite the first
password. [grav:1/4]

The password is entered in a form with a different protocol, such
as "mailto:". [grav:2/4]

The password of a second protocol can overwrite the first
password. [grav:1/4]

The password is entered in a form with a different protocol,
without displaying a warning. [grav:1/4]

The user can request the password by requesting a less secured
protocol. [grav:2/4]

The password is entered in a form, even if the "autocomplete"
feature is disabled. [grav:2/4]

The password is entered in a form with a different HTTP method,
such as "GET". [grav:1/4]

The password is entered in a form with a different HTTP method,
without displaying a warning. [grav:1/4]

Different paths can not have different passwords. [grav:1/4]

Different ports can not have different passwords. [grav:1/4]

Different protocols can not have different passwords. [grav:1/4]

The password is entered in a form with a different attribute name.
[grav:2/4]

CHARACTERISTICS

 Identifiers: VIGILANCE-VUL-8336
 Url: http://vigilance.fr/vulnerability/8336


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