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Netsikker nu! 2008
 
Asterisk Predictable HTTP Manager ID Weakness
Secunia Advisory: SA29449
Release Date: 2008-03-19
Popularity: 3,995 views

Critical:
Not critical
Impact: Hijacking
Where: From local network
Solution Status: Vendor Workaround

Software:Asterisk 1.x
Asterisk Appliance Developer Kit 0.x
Asterisk Business Edition 2.x

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CVE reference:CVE-2008-1390


Description:
Dino A. Dai Zovi has reported a weakness in Asterisk, which can be exploited by malicious people to hijack a user session.

The weakness is caused due to the HTTP Manager ID being predictable. This can be exploited to hijack a manager's session by guessing the session ID.

The weakness is reported in:
* Asterisk Open Source 1.4.x prior to 1.4.19-rc3
* Asterisk Open Source 1.6.x prior to 1.6.0-beta6
* Asterisk Business Edition C.x.x prior to C.1.6
* AsteriskNOW prior to 1.0.2
* Asterisk Appliance Developer Kit prior to SVN revision 104704
* s800i (Asterisk Appliance) prior to version 1.1.0.2

Solution:
Asterisk Open Source 1.4.x:
Fixed in version 1.4.19-rc3

Asterisk Open Source 1.6.x:
Fixed in version 1.6.0-beta6

Asterisk Business Edition C.x.x:
Fixed in version C.1.6

AsteriskNOW:
Update to 1.0.2.

Asterisk Appliance Developer Kit:
Fixed with SVN revision 104704.

s800i (Asterisk Appliance):
Update to version 1.1.0.2

Provided and/or discovered by:
Dino A. Dai Zovi

Original Advisory:
http://downloads.digium.com/pub/security/AST-2008-005.html


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