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SYNTHESIS

An attacker can create a malicious TAR archive in order to force
Archive-Tar to create files outside root directory.

Gravity: 1/4

Consequences: data creation/edition

Provenance: document

Means of attack: no proof of concept, no attack

Ability of attacker: expert (4/4)

Confidence: confirmed by the editor (5/5)

Diffusion of the vulnerable configuration: high (3/3)

Creation date: 31/12/2008

IMPACTED PRODUCTS
– Fedora
– Unix - plateform

DESCRIPTION

The Archive-Tar module is used to manipulate TAR archives in Perl
language.

However, this module does not check if the archive contains ’../’,
which can be used by an attacker to create files on the system.

An attacker can therefore create a malicious TAR archive in order
to force Archive-Tar to create files outside the extraction
directory.

CHARACTERISTICS

Identifiers: 295021, BID-26355, CVE-2007-4829, FEDORA-2008-11736,
VIGILANCE-VUL-8364

http://vigilance.fr/vulnerability/8364