Asterisk Buffer Overflow in Manager Interface Lets Remote Authenticated Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1014268
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SecurityTracker URL: http://securitytracker.com/id?1014268
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CVE Reference: CAN-2005-2081
(Links to External Site)
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Updated: Jul 2 2005
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Original Entry Date: Jun 22 2005
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Impact: Execution of arbitrary code via network, Root access via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: Portcullis
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Version(s): 1.0.7
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Description: A vulnerability was reported in Asterisk in the manager interface. A remote authenticated user can execute arbitrary code on the target system.
A remote authenticated user can supply a specially crafted command string to trigger a stack overflow and execute arbitrary code.
The code will (typically) run with root privileges.
A command string composed two double quote characters followed by a tab
character, with this sequence repeating, can trigger the flaw.
The manager interface is not enabled by default.
The vendor
was notified on May 19, 2005.
Wade Alcorn from Portcullis discovered this vulnerability.
The original advisory is available
at:
http://www.portcullis-security.com/advisory/advisory-05-013.txt
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Impact: A remote authenticated user can execute arbitrary code on the target system with root privileges.
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Solution: The vendor has issued a fixed version (1.0.8), available at:
http://www.asterisk.org/index.php?menu=download
As a workaround, the manager interface can be disabled via the 'manager.conf' file.
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Vendor URL: www.asterisk.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Any)
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Reported By: Wade Alcorn <wja@portcullis-security.com>
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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