Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability

BID:28901

Info

Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability

Bugtraq ID: 28901
Class: Design Error
CVE: CVE-2008-1897
Remote: Yes
Local: No
Published: Apr 23 2008 12:00AM
Updated: May 07 2015 05:12PM
Credit: Javantea
Vulnerable: Red Hat Fedora 7
Gentoo Linux
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Asterisk s800i Appliance 1.1 .2
Asterisk s800i Appliance 1.1 .0
Asterisk s800i Appliance 1.0.3
Asterisk s800i Appliance 1.0.2
Asterisk s800i Appliance 1.0.1
Asterisk s800i Appliance 1.0
Asterisk AsteriskNow 1.0.2
Asterisk AsteriskNow Beta 7
Asterisk AsteriskNow Beta 6
Asterisk AsteriskNow Beta 5
Asterisk AsteriskNow 1.0
Asterisk Asterisk Business Edition C.1.6.2
Asterisk Asterisk Business Edition C.1.6.1
Asterisk Asterisk Business Edition C.1.6
Asterisk Asterisk Business Edition C.1.0-beta8
Asterisk Asterisk Business Edition C.1.0-beta7
Asterisk Asterisk Business Edition C
Asterisk Asterisk Business Edition B.2.5.1
Asterisk Asterisk Business Edition B.2.3.6
Asterisk Asterisk Business Edition B.2.3.4
Asterisk Asterisk Business Edition B.2.3.3
Asterisk Asterisk Business Edition B.2.3.2
Asterisk Asterisk Business Edition B.2.3.1
Asterisk Asterisk Business Edition B.2.2.1
Asterisk Asterisk Business Edition B.2.2.0
Asterisk Asterisk Business Edition B.1.3.3
Asterisk Asterisk Business Edition B.1.3.2
Asterisk Asterisk Business Edition B
Asterisk Asterisk Business Edition A
Asterisk Asterisk Appliance Developers Kit 0
Asterisk Asterisk Appliance Developer Kit 0.8
Asterisk Asterisk Appliance Developer Kit 0.7
Asterisk Asterisk Appliance Developer Kit 0.6
Asterisk Asterisk Appliance Developer Kit 0.5
Asterisk Asterisk Appliance Developer Kit 0.4
Asterisk Asterisk Appliance Developer Kit 0.3
Asterisk Asterisk Appliance Developer Kit 0.2
Asterisk Asterisk 1.4.19 -rc3
Asterisk Asterisk 1.4.19
Asterisk Asterisk 1.4.18
Asterisk Asterisk 1.4.17
Asterisk Asterisk 1.4.16
Asterisk Asterisk 1.4.15
Asterisk Asterisk 1.4.14
Asterisk Asterisk 1.4.13
Asterisk Asterisk 1.4.12
Asterisk Asterisk 1.4.11
Asterisk Asterisk 1.4.10
Asterisk Asterisk 1.4.9
Asterisk Asterisk 1.4.8
Asterisk Asterisk 1.4.7
Asterisk Asterisk 1.4.6
Asterisk Asterisk 1.4.5
Asterisk Asterisk 1.4.4
Asterisk Asterisk 1.4.3
Asterisk Asterisk 1.4.2
Asterisk Asterisk 1.4.1
Asterisk Asterisk 1.2.27
Asterisk Asterisk 1.2.26
Asterisk Asterisk 1.2.25
Asterisk Asterisk 1.2.24
Asterisk Asterisk 1.2.23
Asterisk Asterisk 1.2.22
Asterisk Asterisk 1.2.21
Asterisk Asterisk 1.2.19
Asterisk Asterisk 1.2.18
Asterisk Asterisk 1.2.17
Asterisk Asterisk 1.2.16
Asterisk Asterisk 1.2.15
Asterisk Asterisk 1.2.14
Asterisk Asterisk 1.2.13
Asterisk Asterisk 1.2.11
Asterisk Asterisk 1.2.10
Asterisk Asterisk 1.2.9
Asterisk Asterisk 1.2.8
Asterisk Asterisk 1.2.7
Asterisk Asterisk 1.2.6
Asterisk Asterisk 1.2.5
Asterisk Asterisk 1.2 .0-beta2
Asterisk Asterisk 1.2 .0-beta1
Asterisk Asterisk 1.0.12
Asterisk Asterisk 1.0.11
Asterisk Asterisk 1.0.10
Asterisk Asterisk 1.0.9
Asterisk Asterisk 1.0.8
Asterisk Asterisk 1.0.7
Asterisk Asterisk 1.0.6
Asterisk Asterisk 1.0
Asterisk Asterisk 0.9 .0
Asterisk Asterisk 0.7.2
Asterisk Asterisk 0.7.1
Asterisk Asterisk 0.7 .0
Asterisk Asterisk 0.4.1
Asterisk Asterisk 0.4
Asterisk Asterisk 0.3
Asterisk Asterisk 0.2
Asterisk Asterisk 0.1.11
Asterisk Asterisk 0.1.9 -1
Asterisk Asterisk 0.1.9
Asterisk Asterisk 0.1.8
Asterisk Asterisk 0.1.7
Asterisk Asterisk 1.4.18.1
Asterisk Asterisk 1.4 revision 95946
Asterisk Asterisk 1.4 Beta
Asterisk Asterisk 1.0.3.4
Not Vulnerable: Asterisk s800i Appliance 1.1 .3
Asterisk AsteriskNow 1.0.3
Asterisk Asterisk Business Edition C.1.8.1
Asterisk Asterisk Business Edition B.2.5.2
Asterisk Asterisk 1.4.19 .1
Asterisk Asterisk 1.2.28

Discussion

Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability

Asterisk is prone to a remote denial-of-service vulnerability caused by a flaw in the IAX2 protocol.

Successful exploits result in packet-amplification attacks. Malicious users can cause Asterisk to send large numbers of UDP datagrams to arbitrary addresses, potentially denying service to both the Asterisk service and networks that may become flooded.

Exploit / POC

Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability

The AltSci Concepts IAX2 Exploit Framework contains exploit code to demonstrate this issue. Please see the references for information on obtaining and using the exploit framework.

Solution / Fix

Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability

Solution:
The vendor has released an advisory along with updates. Please see the references for more information.


Asterisk Asterisk 1.4 Beta

Asterisk Asterisk 1.4 revision 95946

Asterisk Asterisk 1.4.18.1

Asterisk Asterisk 1.2 .0-beta1

Asterisk Asterisk 1.2.10

Asterisk Asterisk 1.2.11

Asterisk Asterisk 1.2.13

Asterisk Asterisk 1.2.15

Asterisk Asterisk 1.2.17

Asterisk Asterisk 1.2.18

Asterisk Asterisk 1.2.22

Asterisk Asterisk 1.2.23

Asterisk Asterisk 1.2.24

Asterisk Asterisk 1.2.25

Asterisk Asterisk 1.2.27

Asterisk Asterisk 1.2.5

Asterisk Asterisk 1.2.6

Asterisk Asterisk 1.2.7

Asterisk Asterisk 1.2.8

Asterisk Asterisk 1.2.9

Asterisk Asterisk 1.4.10

Asterisk Asterisk 1.4.12

Asterisk Asterisk 1.4.14

Asterisk Asterisk 1.4.15

Asterisk Asterisk 1.4.16

Asterisk Asterisk 1.4.19

Asterisk Asterisk 1.4.2

Asterisk Asterisk 1.4.4

Asterisk Asterisk 1.4.5

Asterisk Asterisk 1.4.7

Asterisk Asterisk 1.4.8

Asterisk Asterisk 1.4.9

References

Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability

References:

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