NVD Vulnerability Detail
Search Exploit, PoC
CVE-2008-1923
Summary

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.

Publication Date April 24, 2008, 1:05 a.m.
Registration Date Jan. 29, 2021, 1:35 p.m.
Last Update Aug. 8, 2017, 10:30 a.m.
CVSS2.0 : HIGH
Score 7.1
Vector AV:N/AC:M/Au:N/C:N/I:N/A:C
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 中
攻撃前の認証要否(Au) 不要
機密性への影響(C) なし
完全性への影響(I) なし
可用性への影響(A) 高
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:*:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:a:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.4:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:* b2.5.1
cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0-beta7:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0-beta8:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0beta7:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:c.1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:* c1.8.0
cpe:2.3:a:asterisk:asterisknow:1.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisknow:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisknow:*:*:*:*:*:*:*:* 1.0.2
cpe:2.3:a:asterisk:open_source:1.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.9:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.11:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.11.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.0.12:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.3:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.4:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.5:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.6:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.7:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.7.1:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.8:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.8:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.9.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.9.1:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.10:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.11:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.12:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.12:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.12.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.13:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.13:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.14:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.14:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.15:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.15:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.16:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.16:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.17:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.17:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.18:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.18:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.19:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.19:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.20:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.20:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.21:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.21:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.21.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.21.1:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.22:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.22:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.23:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.23:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.24:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.24:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.25:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.25:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.1:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.2:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.27:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.28:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.0:beta3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.0:beta4:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.5:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.6:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.7:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.7.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.8:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.9:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.10:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.10.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.11:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.12:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.12.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.13:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.14:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.15:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.16:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.16.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.16.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.17:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.18:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.18.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.19:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.19:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.19:rc3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.4.19:rc4:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.0.3.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:1.1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:s800i:*:*:*:*:*:*:*:* 1.1.0.2
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Asterisk の IAX2 チャネルドライバにおけるサービス運用妨害 (DoS) の脆弱性
Title Asterisk の IAX2 チャネルドライバにおけるサービス運用妨害 (DoS) の脆弱性
Summary

Asterisk の IAX2 チャネルドライバ (chan_iax2) は、非認証呼び出しの許可を設定している際、NEW メッセージの未検証の送信元 IP アドレスに "初期オーディオ" を送信するため、サービス運用妨害 (トラフィック増幅) 状態となる脆弱性が存在します。

Possible impacts 第三者により、偽造した NEW メッセージを介して、サービス運用妨害 (トラフィック増幅) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date April 22, 2008, midnight
Registration Date June 26, 2012, 4:02 p.m.
Last Update June 26, 2012, 4:02 p.m.
Affected System
Digium
Asterisk Open Source revision 72630 未満の 1.2 および revision 65679 未満の 1.4
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
0 [2012年06月26日]
  掲載		 Feb. 17, 2018, 10:37 a.m.