4.3
MEDIUM
CVE-2008-1897
Asterisk IAX2 Denial of Service Traffic Amplification
Description

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.

INFO

Published Date :

April 23, 2008, 4:05 p.m.

Last Modified :

Oct. 20, 2023, 2:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

8.6
Affected Products

The following products are affected by CVE-2008-1897 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Asterisk asterisk_business_edition
2 Asterisk open_source
3 Asterisk asterisk_appliance_developer_kit
4 Asterisk asterisknow
5 Asterisk s800i
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2008-1897.

URL Resource
http://bugs.digium.com/view.php?id=10078
http://downloads.digium.com/pub/security/AST-2008-006.html
http://secunia.com/advisories/29927 Vendor Advisory
http://secunia.com/advisories/30010 Vendor Advisory
http://secunia.com/advisories/30042 Vendor Advisory
http://secunia.com/advisories/34982
http://security.gentoo.org/glsa/glsa-200905-01.xml
http://www.altsci.com/concepts/page.php?s=asteri&p=2
http://www.debian.org/security/2008/dsa-1563
http://www.securityfocus.com/archive/1/491220/100/0/threaded
http://www.securityfocus.com/bid/28901
http://www.securitytracker.com/id?1019918
http://www.vupen.com/english/advisories/2008/1324
https://downloads.asterisk.org/pub/security/AST-2008-006.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/41966
https://github.com/jcollie/asterisk/commit/60de4fbbdf3ede49f158e23a9e3b679f2e519c1e
https://github.com/jcollie/asterisk/commit/771b3d8749b34b6eea4e03a2e514380da9582f90
https://github.com/jcollie/asterisk/commit/a8b180875b037b8da26f6a3bcc8e5e98b8c904d2
https://github.com/kaoru6/asterisk/commit/1fe14f38dd43dc894d21f85762b51208ba5c8acb
https://github.com/lyx2014/Asterisk/commit/0670e43c30135044e25cca7f80e1833e2c128653
https://github.com/mojolingo/asterisk/commit/20ac3662f137dbf7f42d5295590069a7d3b1166b
https://github.com/pruiz/asterisk/commit/e0ef9bd22810c6969a7f222eec04798f19a7e2d6
https://github.com/silentindark/asterisk-1/commit/fe8b7f31db687f8b9992864b82c93d22833019c7
https://github.com/xrg/asterisk-xrg/commit/10da3dab24e8ca08cf2c983f8d0206e383535b5a
https://github.com/xrg/asterisk-xrg/commit/51714a24347dc57f9a208a4a8af84115ef407b83
https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00581.html
https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00600.html

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2008-1897 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2008-1897 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 20, 2023

    Action Type Old Value New Value
    Added Reference https://github.com/jcollie/asterisk/commit/771b3d8749b34b6eea4e03a2e514380da9582f90 [No Types Assigned]
    Added Reference https://github.com/jcollie/asterisk/commit/a8b180875b037b8da26f6a3bcc8e5e98b8c904d2 [No Types Assigned]
    Added Reference https://github.com/kaoru6/asterisk/commit/1fe14f38dd43dc894d21f85762b51208ba5c8acb [No Types Assigned]
    Added Reference https://github.com/lyx2014/Asterisk/commit/0670e43c30135044e25cca7f80e1833e2c128653 [No Types Assigned]
    Added Reference https://github.com/silentindark/asterisk-1/commit/fe8b7f31db687f8b9992864b82c93d22833019c7 [No Types Assigned]
    Added Reference https://github.com/xrg/asterisk-xrg/commit/10da3dab24e8ca08cf2c983f8d0206e383535b5a [No Types Assigned]
    Added Reference https://github.com/pruiz/asterisk/commit/e0ef9bd22810c6969a7f222eec04798f19a7e2d6 [No Types Assigned]
    Added Reference https://github.com/xrg/asterisk-xrg/commit/51714a24347dc57f9a208a4a8af84115ef407b83 [No Types Assigned]
    Added Reference https://github.com/mojolingo/asterisk/commit/20ac3662f137dbf7f42d5295590069a7d3b1166b [No Types Assigned]
    Added Reference https://downloads.asterisk.org/pub/security/AST-2008-006.html [No Types Assigned]
    Added Reference https://github.com/jcollie/asterisk/commit/60de4fbbdf3ede49f158e23a9e3b679f2e519c1e [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 11, 2018

    Action Type Old Value New Value
    Removed Reference http://www.securityfocus.com/archive/1/archive/1/491220/100/0/threaded [No Types Assigned]
    Added Reference http://www.securityfocus.com/archive/1/491220/100/0/threaded [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 08, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/41966 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/41966 [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 23, 2008

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2008-1897 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

92.30 }} -1.58%

score

0.99029

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability