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Category:   Application (VoIP)  >   Asterisk Vendors:   Digium (Linux Support Services)
Asterisk SIP Channel Driver Lets Remote Users Make Unauthenticated Calls
SecurityTracker Alert ID:  1019629
SecurityTracker URL:
CVE Reference:   CVE-2008-1332   (Links to External Site)
Date:  Mar 18 2008
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to and 1.4.19-rc3
Description:   A vulnerability was reported in Asterisk. A remote user can make phone calls without authenticating.

A remote user can set a specially crafted 'From' header to make unauthenticated calls via the SIP channel driver.

The vendor was notified on March 12, 2008.

Jason Parker from Digium reported this vulnerability.

Impact:   A remote user can make phone calls without authenticating.
Solution:   The vendor has issued a fix (1.2.27,, 1.4.19-rc3), available at:

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.

 Source Message Contents

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