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SYNTHESIS

A local attacker can use DATA DIRECTORY and INDEX DIRECTORY to
alter database tables.

Gravity: 2/4

Consequences: data creation/edition

Provenance: user shell

Means of attack: no proof of concept, no attack

Ability of attacker: expert (4/4)

Confidence: multiples sources (3/5)

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

Creation date: 16/09/2008

Identifier: VIGILANCE-VUL-8109

IMPACTED PRODUCTS

– MySQL [confidential versions]
– MySQL Community Server [confidential versions]
– MySQL Enterprise Server [confidential versions]

DESCRIPTION

The DATA DIRECTORY and INDEX DIRECTORY options indicates paths
where data and index files of a table are located. An attacker can
use them to access to tables with the same name. This
vulnerability has the reference CVE-2008-2079 (VIGILANCE-VUL-7804
(https://vigilance.aql.fr/tree/1/7804), VIGILANCE-VUL-7803
(https://vigilance.aql.fr/tree/1/7803), VIGILANCE-VUL-7802
(https://vigilance.aql.fr/tree/1/7802)).

This vulnerability was corrected. However, patches were incorrect:

– the official patch can be bypassed using symbolic links
(CVE-2008-4098)
– the Debian patch can be by passed by changing the path
(CVE-2008-4097)

A local attacker can thus still use DATA DIRECTORY and INDEX
DIRECTORY to alter database tables.

CHARACTERISTICS

Identifiers: 32167, CVE-2008-2079, CVE-2008-4097, CVE-2008-4098,
VIGILANCE-VUL-8109

https://vigilance.aql.fr/tree/1/8109