CVE-2016-7427

The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service reject broadcast mode packets via a crafted broadcast mode packet...

Exploit Code Released for NTP Vulnerability

A researcher has released a proof-of-concept exploit for a vulnerability in the Network Time Protocol daemon that could crash a server with a single, malformed packet. The Network Time Foundation’s NTP Project on Monday patched the bug and nine others with the release of NTP 4.2.8p9. The...

Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : ntp (SSA:2016-326-01)

New ntp packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Slackware Security Advisory 2016-326-01. The text...

NTP 4.2.8p8 - Denial of Service

NTP 4.2.8p8 - Denial of Service !/usr/bin/env python Exploit Title: ntpd remote pre-auth Denial of Service Date: 2016-11-21 Exploit Author: Magnus Klaaborg Stubman @magnusstubman Website: http://dumpco.re/cve-2016-7434/ Vendor Homepage: http://www.ntp.org/ Software Link:...

Network Time Protocol Control Mode Unauthenticated Trap Information Disclosure and DDoS Amplification Vulnerability

Summary An exploitable configuration modification vulnerability exists in the control mode mode 6 functionality of ntpd. A specially crafted control mode packet can set ntpd traps, providing information disclosure and DDoS amplification, and unset ntpd traps, preventing legitimate monitoring. A...

Network Time Protocol Broadcast Mode Poll Interval Enforcement Denial of Service Vulnerability

Summary An exploitable denial of service vulnerability exists in the broadcast mode poll interval enforcement functionality of ntpd. To limit abuse, ntpd restricts the rate at which each broadcast association will process incoming packets. ntpd will reject broadcast mode packets that arrive befor...

Vulnerabilities Identified in Network Time Protocol Daemon (ntpd)

The Network Time Foundation's NTP Project has released version ntp-4.2.8p9 to address multiple vulnerabilities in ntpd. Exploitation of some of these vulnerabilities may allow a remote attacker to cause a denial-of-service condition. US-CERT encourages users and administrators to review...

NTP 4.2.8p8 - Denial of Service

!/usr/bin/env python Exploit Title: ntpd remote pre-auth Denial of Service Date: 2016-11-21 Exploit Author: Magnus Klaaborg Stubman @magnusstubman Website: http://dumpco.re/cve-2016-7434/ Vendor Homepage: http://www.ntp.org/ Software Link:...

Network Time Protocol Broadcast Mode Replay Prevention Denial of Service Vulnerability

Summary An exploitable denial of service vulnerability exists in the broadcast mode replay prevention functionality of ntpd. To prevent replay of broadcast mode packets, ntpd rejects broadcast mode packets with non-monotonically increasing transmit timestamps. Remote unauthenticated attackers can...

NTP.org ntpd contains multiple denial of service vulnerabilities

Overview NTP.org ntpd versions ntp-4.2.7p385 up to but not including ntp-4.2.8p9 and ntp-4.3.0 up to but not including ntp-4.3.94 contain multiple denial of service vulnerabilities. Description NTP.org's ntpd, versions ntp-4.2.7p385 up to but not including ntp-4.2.8p9 and ntp-4.3.0 up to but not...

ntp -- multiple vulnerabilities

Network Time Foundation reports: NTF's NTP Project is releasing ntp-4.2.8p9, which addresses: 1 HIGH severity vulnerability that only affects Windows 2 MEDIUM severity vulnerabilities 2 MEDIUM/LOW severity vulnerabilities 5 LOW severity vulnerabilities 28 other non-security fixes and improvements...

Brocade Security Advisory BSA-2015-002 (NTP)

The receive function in ntpproto.c in ntpd in NTP before 4.2.8 continues to execute after detecting a certain authentication error, which might allow remote attackers to trigger an unintended association change via crafted packets SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions...

Oracle Linux 7 : ntp (ELSA-2016-2583)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-2583 advisory. - add disable monitor to default ntp.conf CVE-2013-5211 - don't allow spoofed packet to enable symmetric interleaved mode CVE-2016-1548 - check mode of...

ntp security and bug fix update

4.2.6p5-25.0.1 - add disable monitor to default ntp.conf CVE-2013-5211 4.2.6p5-25 - don't allow spoofed packet to enable symmetric interleaved mode CVE-2016-1548 - check mode of new source in config command CVE-2016-2518 - make MAC check resilient against timing attack CVE-2016-1550 4.2.6p5-24 -...

RHEL 7 : ntp (RHSA-2016:2583)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2016:2583 advisory. The Network Time Protocol NTP is used to synchronize a computer's time with another referenced time source. These packages include the ntpd...

ntp: config command can be used to set the pidfile and drift file paths

It was found that NTP's :config command could be used to set the pidfile and driftfile paths without any restrictions. A remote attacker could use this flaw to overwrite a file on the file system with a file containing the pid of the ntpd process immediately or the current estimated drift of the...

ntp: incomplete checks in ntp_crypto.c

It was found that the fix for CVE-2014-9750 was incomplete: three issues were found in the value length checks in NTP's ntpcrypto.c, where a packet with particular autokey operations that contained malicious data was not always being completely validated. A remote attacker could use a specially...

ntp: ntpq atoascii memory corruption vulnerability

An off-by-one flaw, leading to a buffer overflow, was found in cookedprint functionality of ntpq. A specially crafted NTP packet could potentially cause ntpq to crash...

Amazon Linux: Security Advisory (ALAS-2016-727)

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 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...

Amazon Linux: Security Advisory (ALAS-2016-708)

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 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...