NTP NAK To The Future

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'NTP "NAK to the Future"', 'Description' = %q Crypto-NAK packets can be used to cause ntpd to accept time from unauthenticated ephemeral symmetric...

SUSE CVE-2015-7871

Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication...

Huawei EulerOS: Security Advisory for ntp (EulerOS-SA-2019-2066)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for ntp (EulerOS-SA-2019-1222)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP3 : ntp (EulerOS-SA-2019-2066)

According to the versions of the ntp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number o...

EulerOS Virtualization 3.0.1.0 : ntp (EulerOS-SA-2019-1557)

According to the versions of the ntp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - It was found that ntpd did not check whether a Message Authentication Code MAC was present in a received packet when ntpd was...

DEBIAN-CVE-2015-7871

Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication...

CVE-2015-7871

CVE-2015-7871 is an authentication-bypass vulnerability in ntpd caused by handling of crypto-NAK packets. A remote, unauthenticated attacker could force ntpd to peer with attacker-controlled time sources, bypassing authentication and potentially tampering time data. Affected series include NTP 4....

CVE-2016-1547

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if...

Debian Security Advisory DSA 3629-1 (ntp - security update)

Several vulnerabilities were discovered in the Network Time Protocol daemon and utility programs: CVE-2015-7974 Matt Street discovered that insufficient key validation allows impersonation attacks between authenticated peers. CVE-2015-7977CVE-2015-7978Stephen Gray discovered that a NULL pointer...

Debian DLA-559-1 : ntp security update

Several vulnerabilities were discovered in the Network Time Protocol daemon and utility programs : CVE-2015-7974 Matt Street discovered that insufficient key validation allows impersonation attacks between authenticated peers. CVE-2015-7977 / CVE-2015-7978 Stephen Gray discovered that a NULL...

NTP Servers Symmetric Association Authentication Bypass (CVE-2015-7871)

A logical flaw exists in NTP servers when handling certain crypto-NAK packets, allowing attackers to bypass the target server's authentication. A remote attacker can leverage this flaw by sending a specially crafted request, and manipulate the server system's time...

CVE-2015-7871

Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication...

UBUNTU-CVE-2015-7871

Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication...

NAK to the Future: NTP Symmetric Association Authentication Bypass Vulnerability

Talos Vulnerability Report TALOS-2015-0069 NAK to the Future: NTP Symmetric Association Authentication Bypass Vulnerability October 21, 2015 CVE Number CVE-2015-7871 Summary Unauthenticated off-path attackers can force ntpd processes to peer with malicious time sources of the attacker’s choosing...