CVE-2015-7704
published 2017-08-07CVE-2015-7704: The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.
PriorityP343high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
10.66%
95.8th percentile
The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.
Affected
70 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| cisco | products_october_2015 | — | — |
| citrix | citrix_adm | — | — |
| citrix | citrix_hypervisor | — | — |
| citrix | citrix_virtual_apps_and_desktops | — | — |
| citrix | endpoint_management | — | — |
| citrix | netscaler_adc | — | — |
| citrix | netscaler_gateway | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | ntp | < ntp 1:4.2.8p4+dfsg-3 (bullseye) | ntp 1:4.2.8p4+dfsg-3 (bullseye) |
| debian | ntp | < ntp 1:4.2.8p11+dfsg-1 (bullseye) | ntp 1:4.2.8p11+dfsg-1 (bullseye) |
| debian | ntpsec | < ntp 1:4.2.8p11+dfsg-1 (bullseye) | ntp 1:4.2.8p11+dfsg-1 (bullseye) |
| mcafee | enterprise_security_manager | < 10.4.0 | 10.4.0 |
| mcafee | enterprise_security_manager | >= 11.0.0 < 11.2.0 | 11.2.0 |
| ntp | ntp | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_cisco7.5HIGH
vendor_debian7.5LOW
vendor_redhat7.5HIGH
vendor_ubuntu5.3MEDIUM
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GHSA
GHSA-rf4v-73h8-p6f7: ntpd in ntp 4
ghsa_unreviewed·2022-05-13·CVSS 7.5
CVE-2018-7184 [HIGH] GHSA-rf4v-73h8-p6f7: ntpd in ntp 4
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
GHSA
GHSA-jm9v-x8m5-p6p2: The ntpd client in NTP 4
ghsa_unreviewed·2022-05-13
CVE-2015-7704 [HIGH] CWE-20 GHSA-jm9v-x8m5-p6p2: The ntpd client in NTP 4
The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.
OSV
CVE-2018-7184: ntpd in ntp 4
osv·2018-03-06·CVSS 7.5
CVE-2018-7184 [HIGH] CVE-2018-7184: ntpd in ntp 4
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
OSV
CVE-2015-7704: The ntpd client in NTP 4
osv·2017-08-07·CVSS 7.5
CVE-2015-7704 [HIGH] CVE-2015-7704: The ntpd client in NTP 4
The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.
OSV
ntp vulnerabilities
osv·2015-10-27·CVSS 5.3
CVE-2015-5146 [MEDIUM] ntp vulnerabilities
ntp vulnerabilities
Aleksis Kauppinen discovered that NTP incorrectly handled certain remote
config packets. In a non-default configuration, a remote authenticated
attacker could possibly use this issue to cause NTP to crash, resulting in
a denial of service. (CVE-2015-5146)
Miroslav Lichvar discovered that NTP incorrectly handled logconfig
directives. In a non-default configuration, a remote authenticated attacker
could possibly use this issue to cause NTP to crash, resulting in a denial
of service. (CVE-2015-5194)
Miroslav Lichvar discovered that NTP incorrectly handled certain statistics
types. In a non-default configuration, a remote authenticated attacker
could possibly use this issue to cause NTP to crash, resulting in a denial
of service. (CVE-2015-5195)
Miroslav Lichvar discove
CISA ICS
Siemens RUGGEDCOM ROX-based Devices NTP Vulnerabilities
cisa_ics·2018-08-27
Siemens RUGGEDCOM ROX-based Devices NTP Vulnerabilities
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens RUGGEDCOM ROX-based Devices NTP Vulnerabilities
Last RevisedAugust 27, 2018
Alert CodeICSA-15-356-01
## OVERVIEW
Siemens has reported to NCCIC/ICS-CERT that NTP daemon vulnerabilities exist in the Siemens RUGGEDCOM ROX-based devices. Siemens has produced firmware updates to mitigate these vulnerabilities.
These vulnerabilities could be exploited remotely.
## AFFECTED PRODUCTS
The following Siemens RUGGEDCOM ROX versions are affected when NTP service is activated:
- ROX II: All versions prior to 2.9.0, and
- ROX I: All versions.
The NTP service is deactivated on ROX
Red Hat
ntp: Interleaved symmetric mode cannot recover from bad state
vendor_redhat·2018-02-27·CVSS 7.5
CVE-2018-7184 [HIGH] ntp: Interleaved symmetric mode cannot recover from bad state
ntp: Interleaved symmetric mode cannot recover from bad state
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
Package: ntp (Red Hat Enterprise Linux 5) - Not affected
Package: ntp (Red Hat Enterprise Linux 6) - Not affected
Package: ntp (Red Hat Enterprise Linux 7) - Not affected
Package: ntp (Red Hat Enterprise Linux 8) - Fix deferred
Debian
CVE-2018-7184: ntp - ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "recei...
vendor_debian·2018·CVSS 7.5
CVE-2018-7184 [HIGH] CVE-2018-7184: ntp - ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "recei...
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
Scope: local
bullseye: resolved (fixed in 1:4.2.8p11+dfsg-1)
CISA ICS
Rockwell Automation Stratix 5900
cisa_ics·2017-05-10
Rockwell Automation Stratix 5900
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Rockwell Automation Stratix 5900
Last RevisedMay 10, 2017
Alert CodeICSA-17-094-04
## CVSS v3 10.0
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Rockwell Automation
Equipment: Stratix 5900
Vulnerabilities: Improper Input Validation, Resource Management Errors, Improper Authentication, Path Traversal.
## REPOSTED INFORMATION
This advisory was originally posted to the NCCIC Portal on April 4, 2017, and is being released to the NCCIC/ICS-CERT web site.
## AFFECTED PRODUCTS
Rockwell Automation reports that these vulnerabilities affect the following Strat
Cisco
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
vendor_cisco·2016-04-28·CVSS 5.3
CVE-2015-7704 [MEDIUM] Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016
Multiple Cisco products incorporate a version of the Network Time Protocol daemon (ntpd) package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or modify the time being advertised by a device acting as a Network Time Protocol (NTP) server.
On April 26, 2016, the NTP Consortium of the Network Time Foundation released a security notice that details 11 issues regarding DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may allow an attacker to shift a system's time. Two of the vulnerabilities disclosed in the NTP security notice address issues that
Ubuntu
NTP vulnerabilities
vendor_ubuntu·2015-10-27·CVSS 5.3
CVE-2015-5146 [MEDIUM] NTP vulnerabilities
Title: NTP vulnerabilities
Summary: Several security issues were fixed in NTP.
Aleksis Kauppinen discovered that NTP incorrectly handled certain remote
config packets. In a non-default configuration, a remote authenticated
attacker could possibly use this issue to cause NTP to crash, resulting in
a denial of service. (CVE-2015-5146)
Miroslav Lichvar discovered that NTP incorrectly handled logconfig
directives. In a non-default configuration, a remote authenticated attacker
could possibly use this issue to cause NTP to crash, resulting in a denial
of service. (CVE-2015-5194)
Miroslav Lichvar discovered that NTP incorrectly handled certain statistics
types. In a non-default configuration, a remote authenticated attacker
could possibly use this issue to cause NTP to crash, resulting in a
BSD
FreeBSD-SA-15:25.ntp: Multiple vulnerabilities of ntp [REVISED]
bsd_advisories·2015-10-26·CVSS 7.5
CVE-2014-9750 [HIGH] FreeBSD-SA-15:25.ntp: Multiple vulnerabilities of ntp [REVISED]
FreeBSD-SA-15:25.ntp Security Advisory
The FreeBSD Project
Topic: Multiple vulnerabilities of ntp [REVISED]
Category: contrib
Module: ntp
Announced: 2015-10-26, revised on 2015-11-04
Credits: Network Time Foundation
Affects: All supported versions of FreeBSD.
Corrected: 2015-10-26 11:35:40 UTC (stable/10, 10.2-STABLE)
2015-11-04 11:27:13 UTC (releng/10.2, 10.2-RELEASE-p7)
2015-11-04 11:27:21 UTC (releng/10.1, 10.1-RELEASE-p24)
2015-11-02 10:39:26 UTC (stable/9, 9.3-STABLE)
2015-11-04 11:27:30 UTC (releng/9.3, 9.3-RELEASE-p30)
CVE Name: CVE-2015-7701, CVE-2015-7702, CVE-2015-7703, CVE-2015-7704,
CVE-2015-7848, CVE-2015-7849, CVE-2015-7850, CVE-2015-7851,
CVE-2015-7852, CVE-2015-7853, CVE-2015-7854, CVE-2015-7855,
CVE-2015-7871
For general information regarding FreeBSD Security Advisories
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco·2015-10-22·CVSS 7.5
CVE-2015-7691 [HIGH] CWE-119 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server.
On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows:
CVE-2015-7691 - Denial of Service AutoKey Malicious Message
C
Red Hat
ntp: disabling synchronization via crafted KoD packet
vendor_redhat·2015-10-21·CVSS 7.5
CVE-2015-7704 [HIGH] CWE-20 ntp: disabling synchronization via crafted KoD packet
ntp: disabling synchronization via crafted KoD packet
The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.
It was discovered that ntpd as a client did not correctly check timestamps in Kiss-of-Death packets. A remote attacker could use this flaw to send a crafted Kiss-of-Death packet to an ntpd client that would increase the client's polling interval value, and effectively disable synchronization with the server.
Statement: This issue did not affect the versions of ntp as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.4, as they do not include support for KoD packets.
Package: ntp (Red Hat Enterprise Linux 5) - Not affected
Package: ntp (Red Hat Enterprise
Debian
CVE-2015-7704: ntp - The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote ...
vendor_debian·2015·CVSS 7.5
CVE-2015-7704 [HIGH] CVE-2015-7704: ntp - The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote ...
The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.
Scope: local
bullseye: resolved (fixed in 1:4.2.8p4+dfsg-3)
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7852 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7852: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7871 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7871: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Citrix
Citrix Security Bulletin CTX220112
vendor_citrix·CVSS 7.5
CVE-2015-7704 [HIGH] Citrix Security Bulletin CTX220112
Citrix Security Bulletin CTX220112
CVE References: CVE-2015-7704, CVE-2015-7705, CVE-2017-5572, CVE-2017-5573, CVE-2025-12101, CVE-2025-62626, CVE-2026-23554, CVE-2026-3055, CVE-2026-4368, CVE-2026-4397
Affected Products: Citrix ADM, Citrix Hypervisor, Citrix Virtual Apps and Desktops, Endpoint Management, NetScaler ADC, NetScaler Gateway, XenServer
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7850 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7850: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7704 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7704: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7855 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7855: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7853 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7853: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7851 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7851: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7705 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7705: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7849 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7849: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7703 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7703: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7854 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7854: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7702 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7702: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7701 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7701: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7691 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7691: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7848 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7848: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
vendor_cisco
CVE-2015-7692 Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
CVE-2015-7692: Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: CVE-2015-7691 - Denial of Service AutoKey Malicio
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-8138 ntp: missing check for zero originate timestamp
bugzilla·2016-01-18·CVSS 7.5
CVE-2015-8138 [HIGH] CVE-2015-8138 ntp: missing check for zero originate timestamp
CVE-2015-8138 ntp: missing check for zero originate timestamp
The TEST2 check of the originate timestamp in received packets, which requires the timestamp to match the value of the peer->aorg variable and which is supposed to be random to prevent spoofing attacks has been found to be faulty.
When ntpd receives a reply, it clears the peer->aorg variable to prevent a replay attack. This makes the value known to the attacker and a spoofed packet with a zero originate timestamp will pass the TEST2.
This means an off-path attacker can disrupt the synchronization with KoD packets, similar to CVE-2015-7704, or they can push arbitrary offset/delay measurements to the client, taking full control over the clock or cause ntpd to exit with an offset larger than the panic threshold.
Discussion:
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Bugzilla
CVE-2015-7704 CVE-2015-5300 ntp: two flaws [fedora-all]
bugzilla·2015-10-22·CVSS 7.5
CVE-2015-7704 [HIGH] CVE-2015-7704 CVE-2015-5300 ntp: two flaws [fedora-all]
CVE-2015-7704 CVE-2015-5300 ntp: two flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. While only
one
Bugzilla
CVE-2015-7704 ntp: disabling synchronization via crafted KoD packet
bugzilla·2015-10-13·CVSS 7.5
CVE-2015-7704 [HIGH] CVE-2015-7704 ntp: disabling synchronization via crafted KoD packet
CVE-2015-7704 ntp: disabling synchronization via crafted KoD packet
When ntpd as an NTP client receives a Kiss-of-Death (KoD) packet from the server to reduce its polling rate, it doesn't check if the originate timestamp in the reply matches the transmit timestamp from its request. An off-path attacker can send a crafted KoD packet to the client, which will increase the client's polling interval to a large value and effectively disable synchronization with the server.
This issue affects ntp versions 4.2.6 and 4.2.8 up to 4.2.8p3.
The attacker can find out to what server the client is currently synchronized by sending it a regular client mode packet and checking the refid field in the reply (the refid is IPv4 address or first four bytes of MD5 sum of IPv6 address).
Upstream bug:
http:/
http://bugs.ntp.org/show_bug.cgi?id=2901http://rhn.redhat.com/errata/RHSA-2015-1930.htmlhttp://rhn.redhat.com/errata/RHSA-2015-2520.htmlhttp://support.ntp.org/bin/view/Main/NtpBug2901http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securithttp://www.debian.org/security/2015/dsa-3388http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlhttp://www.securityfocus.com/bid/77280http://www.securitytracker.com/id/1033951https://bugzilla.redhat.com/show_bug.cgi?id=1271070https://eprint.iacr.org/2015/1020.pdfhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839https://kc.mcafee.com/corporate/index?page=content&id=SB10284https://security.gentoo.org/glsa/201607-15https://security.netapp.com/advisory/ntap-20171004-0001/https://security.netapp.com/advisory/ntap-20171004-0002/https://support.citrix.com/article/CTX220112https://www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016https://www.cs.bu.edu/~goldbe/NTPattack.htmlhttps://www.kb.cert.org/vuls/id/718152http://bugs.ntp.org/show_bug.cgi?id=2901http://rhn.redhat.com/errata/RHSA-2015-1930.htmlhttp://rhn.redhat.com/errata/RHSA-2015-2520.htmlhttp://support.ntp.org/bin/view/Main/NtpBug2901http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securithttp://www.debian.org/security/2015/dsa-3388http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlhttp://www.securityfocus.com/bid/77280http://www.securitytracker.com/id/1033951https://bugzilla.redhat.com/show_bug.cgi?id=1271070https://eprint.iacr.org/2015/1020.pdfhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839https://kc.mcafee.com/corporate/index?page=content&id=SB10284https://security.gentoo.org/glsa/201607-15https://security.netapp.com/advisory/ntap-20171004-0001/https://security.netapp.com/advisory/ntap-20171004-0002/https://support.citrix.com/article/CTX220112https://www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016https://www.cs.bu.edu/~goldbe/NTPattack.htmlhttps://www.kb.cert.org/vuls/id/718152
2017-08-07
Published