PT-2015-3298 · Ntp+4 · Ntpd+5

Martin Prpič · Published 2014-12-24 · Updated 2024-06-15 · CVE-2015-7871

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ntpd versions 4.2.x before 4.2.8p4 ntpd versions 4.3.x before 4.3.77

Description The issue is related to weaknesses in the authentication procedure of the ntpd daemon in the Network Time Protocol (NTP). It allows a remote attacker to bypass the authentication procedure.

Recommendations For versions 4.2.x before 4.2.8p4, update to version 4.2.8p4 or later. For versions 4.3.x before 4.3.77, update to version 4.3.77 or later.

Exploit

Fix

DoS

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

ALT-PU-2014-2486

BDU:2017-02015

CVE-2015-7871

DLA-335-1

DSA-3388-1

MGASA-2015-0413

OPENSUSE-SU-2024:10181-1

SUSE-SU-2015:2058-1

SUSE-SU-2016:1247-1

SUSE-SU-2016:1311-1

USN-2783-1

Affected Products

Alt Linux

Cisco Ios Xe

Cisco Nexus

Suse

Ubuntu

Ntpd

References · 152

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ntp/ntp_nak_to_the_future.rb · Exploit
• https://ubuntu.com/security/CVE-2015-7691 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-7871 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-7871 · Security Note
• http://debian.org/security/2015/dsa-3388 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-7852 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-5219 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-5146 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:1311-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-5196 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2015-7871 · Vendor Advisory
• http://support.ntp.org/bin/view/Main/NtpBug2941 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2015:2058-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-7692 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-7701 · Vendor Advisory