Asterisk SIP Invite Message Remote Denial of Service Vulnerability

BID:23031

Info

Asterisk SIP Invite Message Remote Denial of Service Vulnerability

Bugtraq ID: 23031
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2007-1561
Remote: Yes
Local: No
Published: Mar 19 2007 12:00AM
Updated: Aug 28 2007 11:02PM
Credit: Humberto J. Abdelnur is credited with the discovery of this vulnerability.
Vulnerable: SuSE Linux 10.1
Gentoo Linux
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
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 Asterisk 1.4.1
Asterisk Asterisk 1.2.16
Asterisk Asterisk 1.2.15
Asterisk Asterisk 1.2.14
Not Vulnerable: Asterisk Asterisk 1.4.2
Asterisk Asterisk 1.2.17

Discussion

Asterisk SIP Invite Message Remote Denial of Service Vulnerability

Asterisk is prone to a remote denial-of-service vulnerability.

Exploiting this issue allows remote attackers to cause the application to crash, effectively denying service to legitimate users.

Exploit / POC

Asterisk SIP Invite Message Remote Denial of Service Vulnerability

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

The following proof of concept is available.

Solution / Fix

Asterisk SIP Invite Message Remote Denial of Service Vulnerability

Solution:
Asterisk 1.2.17 and 1.4.2 have been released to address this issue; please contact the vendor for information on how to obtain fixes and upgrades.


Asterisk Asterisk 1.2.14

Asterisk Asterisk 1.2.15

Asterisk Asterisk 1.2.16

Asterisk Asterisk 1.4.1

References

Asterisk SIP Invite Message Remote Denial of Service Vulnerability

References:
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