high
7.5
CWE
20
Advisory Published
Updated

CVE-2015-7703: Input Validation

First published: Mon Jul 24 2017(Updated: )

The "pidfile" or "driftfile" directives in NTP ntpd 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77, when ntpd is configured to allow remote configuration, allows remote attackers with an IP address that is allowed to send configuration requests, and with knowledge of the remote configuration password to write to arbitrary files via the :config command.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
NTP ntp>=4.2.0<4.2.8
NTP ntp>=4.3.0<4.3.77
NTP ntp=4.2.8
NTP ntp=4.2.8-p1
NTP ntp=4.2.8-p1-beta1
NTP ntp=4.2.8-p1-beta2
NTP ntp=4.2.8-p1-beta3
NTP ntp=4.2.8-p1-beta4
NTP ntp=4.2.8-p1-beta5
NTP ntp=4.2.8-p1-rc1
NTP ntp=4.2.8-p1-rc2
NTP ntp=4.2.8-p2
NTP ntp=4.2.8-p2-rc1
NTP ntp=4.2.8-p2-rc2
NTP ntp=4.2.8-p2-rc3
NTP ntp=4.2.8-p3
NTP ntp=4.2.8-p3-rc1
NTP ntp=4.2.8-p3-rc2
NTP ntp=4.2.8-p3-rc3
Oracle Linux=6
Debian GNU/Linux=7.0
Debian GNU/Linux=8.0
Debian GNU/Linux=9.0
NetApp OnCommand Performance Manager
NetApp OnCommand Unified Manager
NetApp Clustered Data ONTAP
NetApp Data ONTAP 7-Mode
redhat enterprise Linux desktop=6.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux server=6.0
redhat enterprise Linux server=7.0
redhat enterprise Linux server aus=7.3
redhat enterprise Linux server aus=7.4
redhat enterprise Linux server aus=7.6
redhat enterprise Linux server aus=7.7
redhat enterprise Linux server eus=7.3
redhat enterprise Linux server eus=7.4
redhat enterprise Linux server eus=7.5
redhat enterprise Linux server eus=7.6
redhat enterprise Linux server eus=7.7
redhat enterprise Linux server tus=7.3
redhat enterprise Linux server tus=7.6
redhat enterprise Linux server tus=7.7
redhat enterprise Linux workstation=6.0
redhat enterprise Linux workstation=7.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-7703?

    CVE-2015-7703 has a severity rating of important, as it allows remote attackers to exploit configuration settings.

  • How do I fix CVE-2015-7703?

    To fix CVE-2015-7703, upgrade NTP to version 4.2.8p4 or higher for 4.2.x, or 4.3.77 or higher for 4.3.x.

  • What versions of NTP are affected by CVE-2015-7703?

    CVE-2015-7703 affects NTP versions 4.2.0 to 4.2.8p3 and 4.3.0 to 4.3.76.

  • What kind of attacks can result from CVE-2015-7703?

    CVE-2015-7703 allows attackers to perform unauthorized management actions on the NTP server due to remote configuration vulnerabilities.

  • Is there a workaround for CVE-2015-7703?

    As a temporary workaround for CVE-2015-7703, disable remote configuration on the NTP server.

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