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TITLE:
Asterisk Manager Interface Command Processing Vulnerability

SECUNIA ADVISORY ID:
SA15791

VERIFY ADVISORY:
http://secunia.com/advisories/15791/

CRITICAL:
Less critical

IMPACT:
System access

WHERE:
>From local network

SOFTWARE:
Asterisk 1.x
http://secunia.com/product/2155/

DESCRIPTION:
Wade Alcorn has reported a vulnerability in Asterisk, which can be
exploited by malicious users to compromise a vulnerable system.

The vulnerability is cause due to an error in the processing of
commands in the Manager Interface. This can be exploited to execute
arbitrary code by supplying a specially crafted command string.

Successful exploitation requires that the Manager interface has been
enabled (disabled by default), the directive "write = command" has
been added to manager.conf, and the user has been authenticated.

The vulnerability has been reported in version 1.0.7. Prior versions
may also be affected.

SOLUTION:
Update to version 1.0.8.
http://www.asterisk.org/index.php?menu=download

PROVIDED AND/OR DISCOVERED BY:
Wade Alcorn

ORIGINAL ADVISORY:
http://www.bindshell.net/voip/advisory-05-013.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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