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Intelligence Center » Browse All Vulnerabilities » CVE-2008-1897

Overview

Vulnerability Score 4.3 4.3
CVE Id CVE-2008-1897
Last Modified 07 Mar 2011 10:08:01
Published 23 Apr 2008 12:05:00
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity MEDIUM
Authentication NONE

CVE-2008-1897

Summary

The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server's reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.

Vulnerable Systems

Application

  • Asterisk Appliance Developer Kit 0.2

  • Asterisk Appliance Developer Kit 0.3

  • Asterisk Appliance Developer Kit 0.4

  • Asterisk Appliance Developer Kit 0.5

  • Asterisk Appliance Developer Kit 0.6

  • Asterisk Appliance Developer Kit 0.6.0

  • Asterisk Appliance Developer Kit 0.7

  • Asterisk Appliance Developer Kit 0.8

  • Asterisk Business Edition A

  • Asterisk Business Edition B.1.3.2

  • Asterisk Business Edition B.1.3.3

  • Asterisk Business Edition B.2.2.0

  • Asterisk Business Edition B.2.2.1

  • Asterisk Business Edition B.2.3.1

  • Asterisk Business Edition B.2.3.2

  • Asterisk Business Edition B.2.3.3

  • Asterisk Business Edition B.2.3.4

  • Asterisk Business Edition B.2.3.6

  • Asterisk Business Edition B.2.5.0

  • Asterisk Business Edition B.2.5.1

  • Asterisk Business Edition C.1.0

  • Asterisk Business Edition C.1.6

  • Asterisk Business Edition C.1.6.1

  • Asterisk Business Edition C.1.6.2

  • Asterisk Business Edition C1.8.0

  • Asterisk Open Source 1.0

  • Asterisk Open Source 1.0.0

  • Asterisk Open Source 1.0.1

  • Asterisk Open Source 1.0.11

  • Asterisk Open Source 1.0.11.1

  • Asterisk Open Source 1.0.12

  • Asterisk Open Source 1.0.2

  • Asterisk Open Source 1.0.3

  • Asterisk Open Source 1.0.3.4

  • Asterisk Open Source 1.0.4

  • Asterisk Open Source 1.0.5

  • Asterisk Open Source 1.0.6

  • Asterisk Open Source 1.0.7

  • Asterisk Open Source 1.0.8

  • Asterisk Open Source 1.0.9

  • Asterisk Open Source 1.2.0

  • Asterisk Open Source 1.2.1

  • Asterisk Open Source 1.2.10

  • Asterisk Open Source 1.2.11

  • Asterisk Open Source 1.2.12

  • Asterisk Open Source 1.2.12.1

  • Asterisk Open Source 1.2.13

  • Asterisk Open Source 1.2.14

  • Asterisk Open Source 1.2.15

  • Asterisk Open Source 1.2.16

  • Asterisk Open Source 1.2.17

  • Asterisk Open Source 1.2.18

  • Asterisk Open Source 1.2.19

  • Asterisk Open Source 1.2.2

  • Asterisk Open Source 1.2.20

  • Asterisk Open Source 1.2.21

  • Asterisk Open Source 1.2.21.1

  • Asterisk Open Source 1.2.22

  • Asterisk Open Source 1.2.23

  • Asterisk Open Source 1.2.24

  • Asterisk Open Source 1.2.25

  • Asterisk Open Source 1.2.26

  • Asterisk Open Source 1.2.26.1

  • Asterisk Open Source 1.2.26.2

  • Asterisk Open Source 1.2.27

  • Asterisk Open Source 1.2.3

  • Asterisk Open Source 1.2.4

  • Asterisk Open Source 1.2.5

  • Asterisk Open Source 1.2.6

  • Asterisk Open Source 1.2.7

  • Asterisk Open Source 1.2.7.1

  • Asterisk Open Source 1.2.8

  • Asterisk Open Source 1.2.9

  • Asterisk Open Source 1.2.9.1

  • Asterisk Open Source 1.4.0

  • Asterisk Open Source 1.4.1

  • Asterisk Open Source 1.4.10

  • Asterisk Open Source 1.4.10.1

  • Asterisk Open Source 1.4.11

  • Asterisk Open Source 1.4.12

  • Asterisk Open Source 1.4.12.1

  • Asterisk Open Source 1.4.13

  • Asterisk Open Source 1.4.14

  • Asterisk Open Source 1.4.15

  • Asterisk Open Source 1.4.16

  • Asterisk Open Source 1.4.16.1

  • Asterisk Open Source 1.4.16.2

  • Asterisk Open Source 1.4.17

  • Asterisk Open Source 1.4.18

  • Asterisk Open Source 1.4.18.1

  • Asterisk Open Source 1.4.19

  • Asterisk S800i 1.0

  • Asterisk S800i 1.0.1

  • Asterisk S800i 1.0.2

  • Asterisk S800i 1.0.3

  • Asterisk S800i 1.0.3.3

  • Asterisk S800i 1.1.0

  • Asterisk S800i 1.1.0.1

  • Asterisk S800i 1.1.0.2

  • Asterisknow 1.0

  • Asterisknow 1.0.1

  • Asterisknow 1.0.2


References

FEDORA - FEDORA-2008-3390

FEDORA - FEDORA-2008-3365

XF - asterisk-iax2protocol-ack-dos(41966)

VUPEN - ADV-2008-1324

SECTRACK - 1019918

BID - 28901

BUGTRAQ - 20080422 AST-2008-006 - 3-way handshake in IAX2 incomplete

DEBIAN - DSA-1563

MISC - http://www.altsci.com/concepts/page.php?s=asteri&p=2

GENTOO - GLSA-200905-01

SECUNIA - 34982

SECUNIA - 30042

SECUNIA - 30010

SECUNIA - 29927

CONFIRM - http://downloads.digium.com/pub/security/AST-2008-006.html

CONFIRM - http://bugs.digium.com/view.php?id=10078


Last Updated: 27 May 2016 10:47:41