Cisco IOS Software and IOS XE Software NTP Access Group Vulnerability

A vulnerability in the implementation of the ntp access-group command in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass the configured Network Time Protocol NTP access group and query the affected NTP-configured server for the time. The...

Ntpd Remote Buffer Overflow Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/2540/info NTP, the Network Time Protocol, is used to synchronize the time between a computer and another system or time reference. It uses UDP as a transport protocol. There are two protocol versions in use: NTP v3 and NT...

Network Time Protocol (NTP) vulnerability in AIX,Network Time Protocol (NTP) vulnerability in VIOS

IBM SECURITY ADVISORY First Issued: Thu Jun 12 16:24:51 CDT 2014 Updated: Tue Jul 1 12:35:38 CDT 2014 Update: Corrected public key URL. Updated: Wed Jul 2 15:20:29 CDT 2014 Update: Added published advisory OpenSSL signature file. Updated: Thu Jul 3 07:42:49 CDT 2014 Update: Renamed tar file for T...

NTP Protocol Fuzzer

A simplistic fuzzer for the Network Time Protocol that sends the following probes to understand NTP and look for anomalous NTP behavior: All possible combinations of NTP versions and modes, even if not allowed or specified in the RFCs Short versions of the above Short, invalid datagrams Full-size...

OpenSSL Receives Funding for Developers, Will Undergo Security Audit

Scarcely a month after announcing the formation of a group designed to help fund open source projects, the Core Infrastructure Initiative has decided to provide the OpenSSL Project with enough money to hire two full-time developers and also will fund an audit of OpenSSL by the Open Crypto Audit...

UltraDNS Dealing with DDoS Attack

UPDATE – UltraDNS said it has mitigated a distributed denial of service DDoS attack for most of its customers after the service was held down for most of the day. “Currently, only customers utilizing a segment of UltraDNS Name Server addresses are experiencing resolution latency due to intermitte...

Volume of NTP Amplification Attacks Getting Louder

No security arena is better representative of the cat and mouse game between hackers and defenders than DDoS attacks and prevention/mitigation. Enterprises and service providers have invested heavily in DDoS mitigations in order to keep critical services available. That’s forced hackers to crank ...

[SECURITY] Fedora 19 Update: chrony-1.29.1-1.fc19

A client/server for the Network Time Protocol, this program keeps your computer's clock accurate. It was specially designed to support systems with intermittent internet connections, but it also works well in permanently connected environments. It can use also hardware reference clocks, system...

Fedora Update for chrony FEDORA-2014-1916

Check for the Version of chrony OpenVAS Vulnerability Test Fedora Update for chrony FEDORA-2014-1916 Authors: System Generated Check Copyright: Copyright C 2014 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the term...

NTP Amplification Blamed for 400 Gbps DDoS Attack

For those of you who thought the infamous Spamhaus distributed denial-of-service attack set an ugly bar for the volume of spurious traffic sent at a target, gird yourself for worse. A massive DDoS attack, reaching at its peak 400 Gbps of bad traffic, was detected late yesterday against a number o...

[SECURITY] Fedora 20 Update: chrony-1.29.1-1.fc20

A client/server for the Network Time Protocol, this program keeps your computer's clock accurate. It was specially designed to support systems with intermittent internet connections, but it also works well in permanently connected environments. It can use also hardware reference clocks, system...

FreeBSD-SA-14:02.ntpd

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-14:02.ntpd Security Advisory The FreeBSD Project Topic: ntpd distributed reflection Denial of Service vulnerability Category: contrib Module: ntpd Announced:...

100Gbps DDoS attack took down Gaming servers with NTP Servers

The New Year begins with a new form of amplified Distributed Denial of Service DDoS Attack, a weapon for attackers to bring down websites and servers. As we have reported two weeks ago that the attackers are abusing the Network Time Protocol NTP servers to perform an amplified version of DDoS...

Network Time Protocol (NTP) Amplification Attacks

A vulnerability in the "monlist" feature of ntpd can allow remote attackers to cause distributed denial of service attack DDoS via forged requests. US-CERT and the Canadian Cyber Incident Response Center CCIRC have both observed active use of this attack vector in recent DDoS attacks. US-CERT...

Cisco IOS Software Multicast Network Time Protocol Denial of Service Vulnerability (cisco-sa-20130925-ntp)

A vulnerability in the implementation of the Network Time Protocol NTP feature in Cisco IOS Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. The vulnerability is due to the improper handling of multicas...

Fedora Update for chrony FEDORA-2013-14549

Check for the Version of chrony OpenVAS Vulnerability Test Fedora Update for chrony FEDORA-2013-14549 Authors: System Generated Check Copyright: Copyright c 2013 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the ter...

Fedora Update for chrony FEDORA-2013-14539

Check for the Version of chrony OpenVAS Vulnerability Test Fedora Update for chrony FEDORA-2013-14539 Authors: System Generated Check Copyright: Copyright c 2013 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the ter...

[SECURITY] Fedora 18 Update: chrony-1.29-1.fc18

A client/server for the Network Time Protocol, this program keeps your computer's clock accurate. It was specially designed to support systems with intermittent internet connections, but it also works well in permanently connected environments. It can use also hardware reference clocks, system...

[SECURITY] Fedora 19 Update: chrony-1.29-1.fc19

A client/server for the Network Time Protocol, this program keeps your computer's clock accurate. It was specially designed to support systems with intermittent internet connections, but it also works well in permanently connected environments. It can use also hardware reference clocks, system...

Oracle Linux 3 : ntp (ELSA-2009-1651)

From Red Hat Security Advisory 2009:1651 : An updated ntp package that fixes two security issues is now available for Red Hat Enterprise Linux 3. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The Network Time Protocol NTP is used to synchroni...