PT-2016-3842 · Ntf+7 · Ntp+10

Matt Street · Published 2016-01-26 · Updated 2024-06-15 · CVE-2015-7974

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions NTP versions 4.x before 4.2.8p6 NTP versions 4.3.x before 4.3.90

Description The issue allows remote attackers to conduct impersonation attacks via an arbitrary trusted key, also known as a "skeleton key", because peer associations of symmetric keys are not verified when authenticating packets.

Recommendations For NTP versions 4.x before 4.2.8p6, update to version 4.2.8p6 or later. For NTP versions 4.3.x before 4.3.90, update to version 4.3.90 or later.

Exploit

Fix

DoS

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

ALT-PU-2017-2335

CESA-2016_2583

CVE-2015-7974

DLA-559-1

DSA-3629-1

MGASA-2016-0039

OPENSUSE-SU-2016_1292-1

OPENSUSE-SU-2016_1329-1

OPENSUSE-SU-2024:10181-1

RHSA-2016:2583

RHSA-2016_2583

SUSE-SU-2016:1175-1

SUSE-SU-2016:1177-1

SUSE-SU-2016:1247-1

SUSE-SU-2016:1278-1

SUSE-SU-2016:1291-1

SUSE-SU-2016:1311-1

SUSE-SU-2016:1471-1

SUSE-SU-2016:1568-1

USN-3096-1

Affected Products

Alt Linux

Centos

Cisco Ios

Cisco Ios Xe

Cisco Ios Xr

Cisco Nexus

Freebsd

Ntp

Red Hat

Suse

Ubuntu

References · 322

• 🔥 https://github.com/opsxcq/exploit-CVE-2016-7434 · Exploit
• 🔥 http://talosintel.com/reports/TALOS-2016-0071 · Exploit
• https://bdu.fstec.ru/vul/2017-02017 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2516 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5194 · Security Note
• http://support.ntp.org/bin/view/Main/NtpBug2936 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/ntp · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-7974 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4953 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7703 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7702 · Security Note
• https://bdu.fstec.ru/vul/2017-02039 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7705 · Security Note
• https://osv.dev/vulnerability/USN-3096-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7979 · Security Note