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TITLE:
Asterisk Call Detail Record Postgres SQL Injection

SECUNIA ADVISORY ID:
SA27827

VERIFY ADVISORY:
http://secunia.com/advisories/27827/

CRITICAL:
Less critical

IMPACT:
Manipulation of data

WHERE:
>From remote

SOFTWARE:
Asterisk 1.x
http://secunia.com/product/2155/
Asterisk Business Edition 2.x
http://secunia.com/product/14820/

DESCRIPTION:
A vulnerability has been reported in Asterisk and Asterisk Business
Edition, which can be exploited by malicious users to conduct SQL
injection attacks.

Input passed as ANI and DNIS strings to the Call Detail Record
Postgres logging engine is not properly sanitised before being used
in SQL queries. This can be exploited to manipulate SQL queries by
injecting arbitrary SQL code.

Successful exploitation requires valid user credentials and that the
module is configured and used.

The vulnerability is reported in all Asterisk 1.0.x versions, all
Asterisk 1.2.x versions before 1.2.25, all Asterisk 1.4.x versions
before 1.4.15, all Asterisk Business Edition A.x.x versions, and in
all Asterisk Business Edition B.x.x.x versions before B.2.3.4.

SOLUTION:
Update to Asterisk 1.2.25, Asterisk 1.4.15, or Asterisk Business
Edition B.2.3.4.

Use the PgsqlODBC driver instead of the vulnerable module.

PROVIDED AND/OR DISCOVERED BY:
Tilghman Lesher

ORIGINAL ADVISORY:
AST-2007-026:
http://downloads.digium.com/pub/security/AST-2007-026.html

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