Asterisk IAX2 Request Flood Remote Denial of Service Vulnerability

BID:19009

Info

Asterisk IAX2 Request Flood Remote Denial of Service Vulnerability

Bugtraq ID: 19009
Class: Design Error
CVE:
Remote: Yes
Local: No
Published: Jul 17 2006 12:00AM
Updated: Jul 18 2006 06:33PM
Credit: Tom Cross of the ISS X-Force discovered this vulnerability.
Vulnerable: Asterisk Asterisk 1.2.9
Asterisk Asterisk 1.2.8
Asterisk Asterisk 1.2.7
Asterisk Asterisk 1.2.6
Asterisk Asterisk 1.2 .0-beta2
Asterisk Asterisk 1.2 .0-beta1
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 0.9 .0
Asterisk Asterisk 0.7.2
Asterisk Asterisk 0.7.1
Asterisk Asterisk 0.7 .0
Asterisk Asterisk 0.4
Asterisk Asterisk 0.3
Asterisk Asterisk 0.2
Asterisk Asterisk 0.1.9 -1
Asterisk Asterisk 0.1.9
Asterisk Asterisk 0.1.8
Asterisk Asterisk 0.1.7
Not Vulnerable: Asterisk Asterisk 1.2.10

Discussion

Asterisk IAX2 Request Flood Remote Denial of Service Vulnerability

Asterisk is prone to a remote denial-of-service vulnerability because it fails to efficiently handle numerous remote requests.

This issue allows remote attackers to consume excessive CPU resources, denying service to legitimate users. The software will become unresponsive to further calls.

Asterisk versions prior to 1.2.10 are vulnerable to this issue.

Exploit / POC

Asterisk IAX2 Request Flood Remote Denial of Service Vulnerability

To exploit this issue, attackers may use readily available network utilities.

Solution / Fix

Asterisk IAX2 Request Flood Remote Denial of Service Vulnerability

Solution:
Version 1.2.10 of Asterisk has been released to address this issue.


Asterisk Asterisk 0.1.7

Asterisk Asterisk 0.1.8

Asterisk Asterisk 0.1.9

Asterisk Asterisk 0.1.9 -1

Asterisk Asterisk 0.2

Asterisk Asterisk 0.3

Asterisk Asterisk 0.4

Asterisk Asterisk 0.7 .0

Asterisk Asterisk 0.7.1

Asterisk Asterisk 0.7.2

Asterisk Asterisk 0.9 .0

Asterisk Asterisk 1.0.10

Asterisk Asterisk 1.0.11

Asterisk Asterisk 1.0.7

Asterisk Asterisk 1.0.8

Asterisk Asterisk 1.0.9

Asterisk Asterisk 1.2 .0-beta1

Asterisk Asterisk 1.2 .0-beta2

Asterisk Asterisk 1.2.6

Asterisk Asterisk 1.2.7

Asterisk Asterisk 1.2.8

Asterisk Asterisk 1.2.9

References

Asterisk IAX2 Request Flood Remote Denial of Service Vulnerability

References:

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