Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability
2011年2月15日
危険度: : 中
CVE識別番号: CVE-2008-1897
概要
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.
トレンドマイクロの対策
Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.
対応方法
Trend Micro Deep Security DPI Rule Number: 1002607
Trend Micro Deep Security DPI Rule Name: 1002607 - Asterisk IAX2 Packet Amplification Remote Denial of Service
影響を受けるソフトウェア
- asterisk asterisk_appliance_developer_kit 0.2
- asterisk asterisk_appliance_developer_kit 0.3
- asterisk asterisk_appliance_developer_kit 0.4
- asterisk asterisk_appliance_developer_kit 0.5
- asterisk asterisk_appliance_developer_kit 0.6
- asterisk asterisk_appliance_developer_kit 0.6.0
- asterisk asterisk_appliance_developer_kit 0.7
- asterisk asterisk_appliance_developer_kit 0.8
- asterisk asterisk_business_edition a
- asterisk asterisknow 1.0
- asterisk asterisk_business_edition c1.8.0
- asterisk asterisk_business_edition c.1.6.2
- asterisk asterisk_business_edition c.1.6.1
- asterisk asterisk_business_edition c.1.6
- asterisk asterisk_business_edition c.1.0
- asterisk asterisk_business_edition b.2.5.1
- asterisk asterisk_business_edition b.2.3.6
- asterisk asterisknow 1.0.1
- asterisk asterisknow 1.0.2
- asterisk open_source 1.4.19
- asterisk open_source 1.4.18.1
- asterisk open_source 1.4.18
- asterisk open_source 1.4.17
- asterisk open_source 1.4.16.2
- asterisk open_source 1.4.16.1
- asterisk open_source 1.4.16
- asterisk open_source 1.4.15
- asterisk open_source 1.4.14
- asterisk open_source 1.4.13
- asterisk open_source 1.4.12.1
- asterisk open_source 1.4.12
- asterisk open_source 1.4.11
- asterisk open_source 1.4.10.1
- asterisk open_source 1.4.10
- asterisk open_source 1.4.1
- asterisk open_source 1.4.0
- asterisk open_source 1.2.9.1
- asterisk open_source 1.2.9
- asterisk open_source 1.2.8
- asterisk open_source 1.2.7.1
- asterisk open_source 1.2.7
- asterisk open_source 1.2.6
- asterisk open_source 1.2.5
- asterisk open_source 1.2.4
- asterisk open_source 1.2.3
- 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