Executive Summary

Informations
Name CVE-2009-3563 First vendor Publication 2009-12-09
Vendor Cve Last vendor Modification 2013-12-04

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:P)
Cvss Base Score 6.4 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3563

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:7379
 
Oval ID: oval:org.mitre.oval:def:7379
Title: DSA-1948 ntp -- denial of service
Description: Robin Park and Dmitri Vinokurov discovered that the daemon component of the ntp package, a reference implementation of the NTP protocol, is not properly reacting to certain incoming packets. An unexpected NTP mode 7 packet with spoofed IP data can lead ntpd to reply with a mode 7 response to the spoofed address. This may result in the service playing packet ping-pong with other ntp servers or even itself which causes CPU usage and excessive disk use due to logging. An attacker can use this to conduct denial of service attacks.
Family: unix Class: patch
Reference(s): DSA-1948
CVE-2009-3563
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 4.0
Product(s): ntp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:7310
 
Oval ID: oval:org.mitre.oval:def:7310
Title: DSA-1992 chrony -- several vulnerabilities
Description: Several vulnerabilities have been discovered in chrony, a pair of programs which are used to maintain the accuracy of the system clock on a computer. This issues are similar to the NTP security flaw CVE-2009-3563. The Common Vulnerabilities and Exposures project identifies the following problems: chronyd replies to all cmdmon packets with NOHOSTACCESS messages even for unauthorised hosts. An attacker can abuse this behaviour to force two chronyd instances to play packet ping-pong by sending such a packet with spoofed source address and port. This results in high CPU and network usage and thus denial of service conditions. The client logging facility of chronyd doesn’t limit memory that is used to store client information. An attacker can cause chronyd to allocate large amounts of memory by sending NTP or cmdmon packets with spoofed source addresses resulting in memory exhaustion. chronyd lacks of a rate limit control to the syslog facility when logging received packets from unauthorised hosts. This allows an attacker to cause denial of service conditions via filling up the logs and thus disk space by repeatedly sending invalid cmdmon packets.
Family: unix Class: patch
Reference(s): DSA-1992
CVE-2010-0292
CVE-2010-0293
CVE-2010-0294
CVE-2009-3563
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 4.0
Product(s): chrony
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:7076
 
Oval ID: oval:org.mitre.oval:def:7076
Title: NTP mode 7 MODE_PRIVATE Packet Remote Denial of Service Vulnerability
Description: ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Family: unix Class: vulnerability
Reference(s): CVE-2009-3563
Version: 5
Platform(s): VMWare ESX Server 4.0
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:19376
 
Oval ID: oval:org.mitre.oval:def:19376
Title: HP-UX Running XNTP, Remote Denial of Service (DoS) and Execution of Arbitrary Code
Description: ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Family: unix Class: vulnerability
Reference(s): CVE-2009-3563
Version: 5
Platform(s): HP-UX 11
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:17673
 
Oval ID: oval:org.mitre.oval:def:17673
Title: DSA-1948-1 ntp - denial of service
Description: Robin Park and Dmitri Vinokurov discovered that the daemon component of the ntp package, a reference implementation of the NTP protocol, is not properly reacting to certain incoming packets.
Family: unix Class: patch
Reference(s): DSA-1948-1
CVE-2009-3563
Version: 5
Platform(s): Debian GNU/Linux 4.0
Debian GNU/Linux 5.0
Product(s): ntp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13488
 
Oval ID: oval:org.mitre.oval:def:13488
Title: USN-867-1 -- ntp vulnerability
Description: Robin Park and Dmitri Vinokurov discovered a logic error in ntpd. A remote attacker could send a crafted NTP mode 7 packet with a spoofed IP address of an affected server and cause a denial of service via CPU and disk resource consumption.
Family: unix Class: patch
Reference(s): USN-867-1
CVE-2009-3563
Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 8.10
Ubuntu 9.10
Ubuntu 6.06
Ubuntu 9.04
Product(s): ntp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12783
 
Oval ID: oval:org.mitre.oval:def:12783
Title: DSA-1992-1 chrony -- several
Description: Several vulnerabilities have been discovered in chrony, a pair of programs which are used to maintain the accuracy of the system clock on a computer. This issues are similar to the NTP security flaw CVE-2009-3563. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2010-0292 chronyd replies to all cmdmon packets with NOHOSTACCESS messages even for unauthorised hosts. An attacker can abuse this behaviour to force two chronyd instances to play packet ping-pong by sending such a packet with spoofed source address and port. This results in high CPU and network usage and thus denial of service conditions. CVE-2010-0293 The client logging facility of chronyd doesn't limit memory that is used to store client information. An attacker can cause chronyd to allocate large amounts of memory by sending NTP or cmdmon packets with spoofed source addresses resulting in memory exhaustion. CVE-2010-0294 chronyd lacks of a rate limit control to the syslog facility when logging received packets from unauthorised hosts. This allows an attacker to cause denial of service conditions via filling up the logs and thus disk space by repeatedly sending invalid cmdmon packets. For the oldstable distribution, this problem has been fixed in version 1.21z-5+etch1. For the stable distribution, this problem has been fixed in version 1.23-6+lenny1. For the testing and unstable distribution, this problem will be fixed soon. We recommend that you upgrade your chrony packages.
Family: unix Class: patch
Reference(s): DSA-1992-1
CVE-2010-0292
CVE-2010-0293
CVE-2010-0294
CVE-2009-3563
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 4.0
Product(s): chrony
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12141
 
Oval ID: oval:org.mitre.oval:def:12141
Title: AIX xntpd denial-of-service vulnerability
Description: ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Family: unix Class: vulnerability
Reference(s): CVE-2009-3563
Version: 3
Platform(s): IBM AIX 5.3
IBM AIX 6.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:11225
 
Oval ID: oval:org.mitre.oval:def:11225
Title: ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Description: ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Family: unix Class: vulnerability
Reference(s): CVE-2009-3563
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23033
 
Oval ID: oval:org.mitre.oval:def:23033
Title: ELSA-2009:1648: ntp security update (Moderate)
Description: ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Family: unix Class: patch
Reference(s): ELSA-2009:1648-01
CVE-2009-3563
Version: 6
Platform(s): Oracle Linux 5
Product(s): ntp
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application21

OpenVAS Exploits

DateDescription
2012-04-16Name : VMSA-2010-0009: ESXi utilities and ESX Service Console third party updates
File : nvt/gb_VMSA-2010-0009.nasl
2011-08-09Name : CentOS Update for ntp CESA-2009:1648 centos4 i386
File : nvt/gb_CESA-2009_1648_ntp_centos4_i386.nasl
2011-08-09Name : CentOS Update for ntp CESA-2009:1648 centos5 i386
File : nvt/gb_CESA-2009_1648_ntp_centos5_i386.nasl
2011-08-09Name : CentOS Update for ntp CESA-2009:1651 centos3 i386
File : nvt/gb_CESA-2009_1651_ntp_centos3_i386.nasl
2011-06-06Name : HP-UX Update for XNTP HPSBUX02639
File : nvt/gb_hp_ux_HPSBUX02639.nasl
2010-02-10Name : Debian Security Advisory DSA 1992-1 (chrony)
File : nvt/deb_1992_1.nasl
2010-01-11Name : FreeBSD Security Advisory (FreeBSD-SA-10:02.ntpd.asc)
File : nvt/freebsdsa_ntpd2.nasl
2010-01-07Name : Gentoo Security Advisory GLSA 201001-01 (ntp)
File : nvt/glsa_201001_01.nasl
2009-12-15Name : NTP mode 7 MODE_PRIVATE Packet Remote Denial of Service Vulnerability
File : nvt/ntp_37255.nasl
2009-12-14Name : CentOS Security Advisory CESA-2009:1648 (ntp)
File : nvt/ovcesa2009_1648.nasl
2009-12-14Name : CentOS Security Advisory CESA-2009:1651 (ntp)
File : nvt/ovcesa2009_1651.nasl
2009-12-14Name : Fedora Core 12 FEDORA-2009-13046 (ntp)
File : nvt/fcore_2009_13046.nasl
2009-12-14Name : Fedora Core 11 FEDORA-2009-13090 (ntp)
File : nvt/fcore_2009_13090.nasl
2009-12-14Name : Fedora Core 10 FEDORA-2009-13121 (ntp)
File : nvt/fcore_2009_13121.nasl
2009-12-14Name : RedHat Security Advisory RHSA-2009:1648
File : nvt/RHSA_2009_1648.nasl
2009-12-14Name : RedHat Security Advisory RHSA-2009:1651
File : nvt/RHSA_2009_1651.nasl
2009-12-14Name : Debian Security Advisory DSA 1948-1 (ntp)
File : nvt/deb_1948_1.nasl
0000-00-00Name : Slackware Advisory SSA:2009-343-01 ntp
File : nvt/esoft_slk_ssa_2009_343_01.nasl

Open Source Vulnerability Database (OSVDB)

idDescription
60847NTP ntpd Mode 7 Request Crafted Packet Reply Loop Remote DoS

Snort® IPS/IDS

DateDescription
2014-01-10ntp mode 7 denial of service attempt
RuleID : 16350 - Revision : 5 - Type : SERVER-OTHER

Metasploit Database

idDescription
2009-10-04 NTP.org ntpd Reserved Mode Denial of Service

Nessus® Vulnerability Scanner

DateDescription
2013-07-12Name : The remote Oracle Linux host is missing a security update.
File : oraclelinux_ELSA-2009-1648.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing a security update.
File : oraclelinux_ELSA-2009-1651.nasl - Type : ACT_GATHER_INFO
2013-05-19Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHNE_42470.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ68659.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71071.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71093.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71608.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71610.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71611.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71613.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote AIX host is missing a security patch.
File : aix_IZ71614.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing a security update.
File : sl_20091208_ntp_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2011-04-04Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHNE_41177.nasl - Type : ACT_GATHER_INFO
2011-04-04Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHNE_41907.nasl - Type : ACT_GATHER_INFO
2011-04-04Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHNE_41908.nasl - Type : ACT_GATHER_INFO
2010-10-11Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_xntp-6718.nasl - Type : ACT_GATHER_INFO
2010-06-01Name : The remote VMware ESXi / ESX host is missing one or more security-related pat...
File : vmware_VMSA-2010-0009.nasl - Type : ACT_GATHER_INFO
2010-05-19Name : The remote AIX host is missing a vendor-supplied security patch.
File : aix_U832257.nasl - Type : ACT_GATHER_INFO
2010-03-05Name : The remote VMware ESX host is missing one or more security-related patches.
File : vmware_VMSA-2010-0004.nasl - Type : ACT_GATHER_INFO
2010-02-25Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201001-01.nasl - Type : ACT_GATHER_INFO
2010-02-24Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1948.nasl - Type : ACT_GATHER_INFO
2010-02-24Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1992.nasl - Type : ACT_GATHER_INFO
2010-01-13Name : The remote openSUSE host is missing a security update.
File : suse_11_1_ntp-091221.nasl - Type : ACT_GATHER_INFO
2010-01-13Name : The remote openSUSE host is missing a security update.
File : suse_11_0_ntp-091211.nasl - Type : ACT_GATHER_INFO
2010-01-13Name : The remote openSUSE host is missing a security update.
File : suse_11_2_ntp-091215.nasl - Type : ACT_GATHER_INFO
2010-01-13Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_ntp-091211.nasl - Type : ACT_GATHER_INFO
2009-12-21Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12559.nasl - Type : ACT_GATHER_INFO
2009-12-21Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_xntp-6719.nasl - Type : ACT_GATHER_INFO
2009-12-14Name : The remote Fedora host is missing a security update.
File : fedora_2009-13046.nasl - Type : ACT_GATHER_INFO
2009-12-14Name : The remote Fedora host is missing a security update.
File : fedora_2009-13090.nasl - Type : ACT_GATHER_INFO
2009-12-14Name : The remote Fedora host is missing a security update.
File : fedora_2009-13121.nasl - Type : ACT_GATHER_INFO
2009-12-14Name : The remote network time service has a denial of service vulnerability.
File : ntpd_mode7_ping_pong_dos.nasl - Type : ACT_GATHER_INFO
2009-12-11Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2009-343-01.nasl - Type : ACT_GATHER_INFO
2009-12-09Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2009-1648.nasl - Type : ACT_GATHER_INFO
2009-12-09Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2009-1651.nasl - Type : ACT_GATHER_INFO
2009-12-09Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2009-328.nasl - Type : ACT_GATHER_INFO
2009-12-09Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-867-1.nasl - Type : ACT_GATHER_INFO
2009-12-09Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2009-1648.nasl - Type : ACT_GATHER_INFO
2009-12-09Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2009-1651.nasl - Type : ACT_GATHER_INFO

Internal Sources (Detail)

SourceUrl
AIXAPAR http://www-01.ibm.com/support/docview.wss?uid=isg1IZ68659
http://www-01.ibm.com/support/docview.wss?uid=isg1IZ71047
BID http://www.securityfocus.com/bid/37255
CERT-VN http://www.kb.cert.org/vuls/id/568372
CONFIRM http://aix.software.ibm.com/aix/efixes/security/xntpd_advisory.asc
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=560074
http://security-tracker.debian.org/tracker/CVE-2009-3563
http://support.avaya.com/css/P8/documents/100071808
http://support.ntp.org/bin/view/Main/SecurityNotice#DoS_attack_from_certain_N...
http://www.kb.cert.org/vuls/id/MAPG-7X7V6J
http://www.kb.cert.org/vuls/id/MAPG-7X7VD7
https://bugzilla.redhat.com/show_bug.cgi?id=531213
DEBIAN http://www.debian.org/security/2009/dsa-1948
FEDORA https://www.redhat.com/archives/fedora-package-announce/2009-December/msg0076...
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg0080...
HP http://marc.info/?l=bugtraq&m=136482797910018&w=2
http://marc.info/?l=bugtraq&m=136482797910018&w=2
MLIST http://lists.vmware.com/pipermail/security-announce/2010/000082.html
NETBSD ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-005.txt.asc
REDHAT https://rhn.redhat.com/errata/RHSA-2009-1648.html
https://rhn.redhat.com/errata/RHSA-2009-1651.html
https://rhn.redhat.com/errata/RHSA-2010-0095.html
SECTRACK http://securitytracker.com/id?1023298
SECUNIA http://secunia.com/advisories/37629
http://secunia.com/advisories/37922
http://secunia.com/advisories/38764
http://secunia.com/advisories/38794
http://secunia.com/advisories/38832
http://secunia.com/advisories/38834
http://secunia.com/advisories/39593
SUNALERT http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021781.1-1
VUPEN http://www.vupen.com/english/advisories/2010/0510
http://www.vupen.com/english/advisories/2010/0528
http://www.vupen.com/english/advisories/2010/0993

Alert History

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0
1
2
3
4
DateInformations
2014-02-17 10:51:54
  • Multiple Updates
2014-01-19 21:26:13
  • Multiple Updates
2013-12-05 17:19:04
  • Multiple Updates
2013-06-05 13:19:28
  • Multiple Updates
2013-05-10 23:58:53
  • Multiple Updates