Technical Description

A vulnerability has been identified in Asterisk, which could be exploited by authenticated attackers to execute arbitrary SQL queries. This issue is caused by an input validation error in the Call Detail Record Postgres logging engine when processing the "ANI" and "DNIS" strings, which could be exploited by malicious users to conduct SQL injection attacks.

Note : The affected module is disabled by default.

Affected Products

Asterisk Open Source versions prior to 1.2.25
Asterisk Open Source versions prior to 1.4.15
Asterisk Business Edition versions prior to B.2.3.4
Asterisk Business Edition versions prior to C.1.0-beta6

Solution

Upgrade to Asterisk Open Source version 1.2.25 or 1.4.15 :
ftp://ftp.digium.com/pub/telephony/asterisk

Upgrade to Asterisk Business Edition version B.2.3.4 or C.1.0-beta6 :
http://www.digium.com

References

http://www.vupen.com/english/advisories/2007/4056
http://downloads.digium.com/pub/security/AST-2007-026.html

Credits

Vulnerability reported by Tilghman Lesher.

ChangeLog

2007-12-03 : Initial release

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