Security researchers from Google Security recently discovered a vulnerability with the Heartbeat extension (RFC6520) to OpenSSL’s Transport Layer Security (TLS) and the Datagram Transport Layer Security (DTLS) protocols. According to open source reports, the vulnerability has existed within certain OpenSSL frameworks since at least 2012. The Heartbeat extension is functionally a “keep-alive” between end-users and the secure server. It works by sending periodic “data pulses” of 64KB in size to the secure server and once the server receives that data; it reciprocates by re-sending the same data at the same size. The out-of-bounds “read” vulnerability exists because the Heartbeat extension in OpenSSL versions 1.0.1 through and 1.0.2-beta (including 1.0.1f and 1.0.2-beta1) do not properly validate the data being sent from the end-user. As a result, a malicious actor could send a specially-crafted heartbeat request to the vulnerable server and obtain sensitive information stored in memory on the server. Furthermore, even though each heartbeat only allows requests to have a data size limited to 64KB segments, it is possible to send repeated requests to retrieve more 64KB segments, which could include encryption keys used for certificates, passwords, usernames, and even sensitive content that were stored at the time. An attacker could harvest enough data from the 64KB segments to piece together larger groupings of information which could help an attacker develop a broader understanding of the information being acquired.
(U//FOUO) DHS National Cybersecurity and Communications Integration Center (NCCIC) Capabilities Guide
The National Cybersecurity and Communications Integration Center (NCCIC) Resource and Capabilities Guide is intended to enhance cross-sector cyber security efforts and collaboration by better informing our cybersecurity and communications partners of the NCCIC’s tools, assets, and collaboration mechanisms offered. This guide also identifies the Center’s resources and capabilities as well as describes the processes for accessing NCCIC information portals and products, incident reporting systems, and relevant point of contact information for our community of partners.
As related to malware which may exhibit a potentially destructive capability, organizations should increase vigilance and evaluate their capabilities encompassing planning, preparation, detection, and response for such an event. Destructive malware presents a direct threat to an organization’s daily operations, directly impacting the availability of critical assets and data. In addition, the response required for such an event can be extremely resource intensive.
The following product is a coordinated effort between NCCIC, U.S. Secret Service and The Cyber Intelligence Network (CIN), provided to assist in prevention, detection and mitigation of a new ransomeware campaign. Ransomware is malware that restricts access to infected computers and requires victims to pay a ransom in order to regain full access. Cryptolocker is particularly interesting in that it functions by encrypting victims computer files with a combination of RSA-2048 and AES-256 encryption. Once encrypted, victims are provided a window of time in which they can pay the actors to receive the key needed to decrypt their files.
Scams, malware campaigns and attacks will continue to grow in scale and complexity as the 27 July opening ceremony in London draws near. Event organizers, sponsors and British authorities continue to increase their physical and cybersecurity awareness as the event approaches. Information systems supporting the Games, transport infrastructure, law enforcement communications, financial operations and similar will become prime targets for criminals. A collective of approximately eighty-seven UK banks exercised their ability to withstand cyber attacks last November. Olympic organizers anticipated cyber threats and began testing their cybersecurity posture during ‘technical rehearsals’ by running scenarios from their Technology Operations Center (TOC) situated on Canary Wharf. The TOC will be manned with over one hundred personnel continuously monitoring critical applications, such as the Commentator Information System, organizers’ intranet, and a telecom infrastructure encompassing 900 servers, 1,000 network and security devices, and 9,500 computers. In addition, British law enforcement organizations have been collaborating with the U.S. Secret Service and other industry experts to understand attack vectors, detection methods and mitigation strategies to combat the threat. However, the cyber implications are more expansive than localized attacks against systems and encompass globally distributed Olympic-themed malware, spam campaigns and scams.
The expanded use of wireless technology on the enterprise network of medical facilities and the wireless utilization of MDs opens up both new opportunities and new vulnerabilities to patients and medical facilities. Since wireless MDs are now connected to Medical information technology (IT) networks, IT networks are now remotely accessible through the MD. This may be a desirable development, but the communications security of MDs to protect against theft of medical information and malicious intrusion is now becoming a major concern. In addition, many HPH organizations are leveraging mobile technologies to enhance operations. The storage capacity, fast computing speeds, ease of use, and portability render mobile devices an optimal solution.
The loosely organized hacking collective known as “Anonymous” has announced through several mediums that they plan on conducting cyber attacks, peaceful protests, and other unspecified activity targeting a variety of organizations. The purpose of this product is to judge the likelihood of occurrence for these events, as well as the potential impact.
The loosely organized hacking collective known as Anonymous has recently expressed an interest in targeting industrial control systems (ICS). This product characterizes Anonymous’ capabilities and intent in this area, based on expert input from DHS’s Control Systems Security Program/Industrial Control Systems Cyber Emergency Response Team (ICS-CERT) in coordination with the other NCCIC components.
The hacker collective known as ‘Anonymous’ has successfully attacked a wide range of public and private sector entities since 2003 with relatively crude tools. Historically, they rely on tools such as the Low Orbit Ion Cannon (LOIC) or Botnets to deny access to websites, or hijack or deface web pages and post quasi-political statements, or perform other malicious activity. Since many of these older tools made it relatively easy for law enforcement and other government forces to identify the source of an attack and then arrest the perpetrator, Anonymous members may have recognized a need to have more advanced tools that offered a lesser degree of exposure. They recently claimed to have developed and possibly employed several new cyber attack tools for use in their self-proclaimed ‘internet civil disobedience’ campaigns. The NCCIC, coordinating with several of its partners, believes there are at least four new tools being shared among and employed by Anonymous members: #RefRef, Apache Killer, Anonware, and Universal Rapid Gamma Emitter (URGE).
Malicious users seeking to exploit interest related to physical events such as earthquakes and hurricanes will likely use subject lines and attachment titles related to the incidents in phishing e-mails. Network administrators and general users should be aware of these attempts and avoid opening messages with attachments and/or subject lines related to physical events.
This Bulletin is being provided for your Executive Leadership, Operational Management, and Security Administrators situational awareness. The actors who make up the hacker group “Anonymous” and several likely related offshoots like “LulzSec”, continue to harass public and private sector entities with rudimentary exploits and tactics, techniques, and procedures (TTPs) commonly associated with less skilled hackers referred to as “Script Kiddies”. Members of Anonymous routinely claim to have an overt political agenda and have justified at least a portion of their exploits as retaliation for perceived ‘social injustices’ and ‘freedom of speech’ issues. Attacks by associated groups such as LulzSec have essentially been executed entirely for their and their associates’ personal amusement, or in their own hacker jargon “for the lulz”.
The National Cybersecurity and Communications Integration Center (NCCIC), through coordination with its partners and monitoring of multiple sources, is tracking reports that members of the hacktivist collectives ‘LulzSec’ and ‘Anonymous’ have combined their efforts and continue to perpetrate cyber attacks targeting U.S. and foreign networks. LulzSec Members have posted statements on the internet claiming the attacks, referred to as ‘Operation AntiSecurity’ (AntiSec), are ‘designed to demonstrate the weakness of general internet security’ and have allowed them to collect massive amounts of data. LulzSec is purported to be a group of former Anonymous members who typically use widely available and crude tools to hijack or deface web pages as a political statement. They also routinely post information regarding planned and ongoing activities on publicly available Internet Relay Chat (IRC) sessions and social networking sites like Twitter. Recent attacks by LulzSec and Anonymous have proven simple Tactics, Techniques and Procedures (TTPs) are often successful, even against entities who have invested a significant amount of time and capital into designing and securing their information networks.