TLS encryption | Breaking Cybersecurity News | The Hacker News

A group of researchers has detailed a new timing vulnerability in Transport Layer Security (TLS) protocol that could potentially allow an attacker to break the encryption and read sensitive communication under specific conditions. Dubbed " Raccoon Attack ," the server-side attack exploits a side-channel in the cryptographic protocol (versions 1.2 and lower) to extract the shared secret key used for secure communications between two parties. "The root cause for this side channel is that the TLS standard encourages non-constant-time processing of the DH secret," the researchers explained their findings in a paper. "If the server reuses ephemeral keys, this side channel may allow an attacker to recover the premaster secret by solving an instance of the Hidden Number Problem." However, the academics stated that the vulnerability is hard to exploit and relies on very precise timing measurements and on a specific server configuration to be exploitable. ...

Mozilla, in partnership with Facebook, Cloudflare, and other IETF community members, has announced technical specifications for a new cryptographic protocol called " Delegated Credentials for TLS ." Delegated Credentials for TLS is a new simplified way to implement "short-lived" certificates without sacrificing the reliability of secure connections. In short, the new TLS protocol extension aims to effectively prevent the misuse of stolen certificates by reducing their maximum validity period to a very short span of time, such as a few days or even hours. Before jumping into how Delegated Credentials for TLS works, you need to understand the current TLS infrastructure, and of course, about the core problem in it because of which we need Delegated Credentials for TLS. The Current TLS Infrastructure More than 70% of all websites on the Internet today use TLS certificates to establish a secure line of HTTPS communication between their servers and visitors, ...

Vulnerability Management (VM) has long been a cornerstone of organizational cybersecurity. Nearly as old as the discipline of cybersecurity itself, it aims to help organizations identify and address potential security issues before they become serious problems. Yet, in recent years, the limitations of this approach have become increasingly evident.  At its core, Vulnerability Management processes remain essential for identifying and addressing weaknesses. But as time marches on and attack avenues evolve, this approach is beginning to show its age. In a recent report, How to Grow Vulnerability Management into Exposure Management (Gartner, How to Grow Vulnerability Management Into Exposure Management, 8 November 2024, Mitchell Schneider Et Al.), we believe Gartner® addresses this point precisely and demonstrates how organizations can – and must – shift from a vulnerability-centric strategy to a broader Exposure Management (EM) framework. We feel it's more than a worthwhile read an...

NordVPN, one of the most popular and widely used VPN services out there, yesterday disclosed details of a security incident that apparently compromised one of its thousands of servers based in Finland. Earlier this week, a security researcher on Twitter disclosed that "NordVPN was compromised at some point," alleging that unknown attackers stole private encryption keys used to protect VPN users traffic routed through the compromised server. In response to this, NordVPN published a blog post detailing about the security incident, and here we have summarized the whole incident for our readers to let you quickly understand what exactly happened, what's at stake, and what you should do next. Some of the information mentioned below also contains information The Hacker News obtained via an email interview with NordVPN. What has been compromised? — NordVPN has thousands of servers across the world hosted with third-party data centers. One such server hosted with a ...

Mozilla has finally introduced a mechanism to let Firefox browser automatically fix certain TLS errors, often triggered when antivirus software installed on a system tries to intercept secure HTTPS connections. Most Antivirus software offers web security feature that intercepts encrypted HTTPS connections to monitor the content for malicious web pages before it reaches the web browser. To achieve this, security software replaces websites' TLS certificates with their own digital certificates issued by any trusted Certificate Authorities (CAs). Since Mozilla only trusts those CAs that are listed in its own root store, the antivirus products relying on other trusted CAs provided by the operating system (OS) are not allowed to intercept HTTPS connections on Firefox. In recent months, this limitation continually crashed HTTPS pages for many Firefox users showing them SEC_ERROR_UNKNOWN_ISSUER, MOZILLA_PKIX_ERROR_MITM_DETECTED or ERROR_SELF_SIGNED_CERT error codes when their an...

All major web browsers, including Google Chrome, Apple Safari, Microsoft Edge, Internet Explorer, and Mozilla Firefox, altogether today announced to soon remove support for TLS 1.0 (20-year-old) and TLS 1.1 (12-year-old) communication encryption protocols. Developed initially as Secure Sockets Layer (SSL) protocol, Transport Layer Security (TLS) is an updated cryptographic protocol used to establish a secure and encrypted communications channel between clients and servers. There are currently four versions of the TLS protocol—TLS 1.0, 1.1, 1.2 and 1.3 ( latest )—but older versions, TLS 1.0 and 1.1, are known to be vulnerable to a number of critical attacks, such as  POODLE  and  BEAST . Since TLS implementation in all major web browsers and applications supports downgrade negotiation process, it leaves an opportunity for attackers to exploit weaker protocols even if a server supports the latest version. All Major Web Browsers Will Remove TLS 1.0 and TLS 1.1 Su...

Facebook has open sourced Fizz—a library designed to help developers implement TLS 1.3 protocol with all recommended security and performance related configurations. Since late last month, Google Chrome web browser has started marking all non-HTTPS websites as 'Not Secure' in an effort to make the web a more secure place, forcing website administrators to switch to HTTPS. TLS 1.3 is the newest and most secure cryptographic protocol of the Transportation Layer Security (TLS), the successor to Secure Sockets Layer (SSL), which encrypts data in transit between clients and servers to prevent data theft or tampering. To make internet traffic more secure, TLS 1.3 incorporates several new features like encrypting handshake messages to keep certificates private, redesigning the way secret keys are derived, and a zero round-trip (0-RTT) connection setup, making certain requests faster than TLS 1.2. Written in C++ 14, Fizz is a reliable and highly performant TLS library that...

No doubt your Internet Service Provides (ISPs), or network-level hackers cannot spy on https communications. But do you know — ISPs can still see all of your DNS requests, allowing them to know what websites you visit. Google is working on a new security feature for Android that could prevent your Internet traffic from network spoofing attacks. Almost every Internet activity starts with a DNS query, making it a fundamental building block of the Internet. DNS works as an Internet's phone book that resolves human-readable web addresses, like thehackernews.com, against their IP addresses. DNS queries and responses are sent in clear text (using UDP or TCP) without encryption, which makes it vulnerable to eavesdropping and compromises privacy. ISPs by default resolve DNS queries from their servers. So when you type a website name in your browser, the query first goes to their DNS servers to find the website's IP address, which eventually exposes this information (metada...

OpenSSL has released a series of patches against six vulnerabilities, including a pair of high-severity flaws that could allow attackers to execute malicious code on a web server as well as decrypt HTTPS traffic . OpenSSL is an open-source cryptographic library that is the most widely being used by a significant portion of the Internet services; to cryptographically protect their sensitive Web and e-mail traffic using the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocol. One of the high-severity flaws, CVE-2016-2107 , allows a man-in-the-middle attacker to initiate a " Padding Oracle Attack " that can decrypt HTTPS traffic if the connection uses AES-CBC cipher and the server supports AES-NI. A Padding Oracle flaw weakens the encryption protection by allowing attackers to repeatedly request plaintext data about an encrypted payload content. The Padding Oracle flaw ( exploit code ) was discovered by Juraj Somorovsky using his own developed tool c...

A new deadly security vulnerability has been discovered in OpenSSL that affects more than 11 Million modern websites and e-mail services protected by an ancient, long deprecated transport layer security protocol, Secure Sockets Layer (SSLv2). Dubbed DROWN , the highly critical security hole in OpenSSL was disclosed today as a low-cost attack that could decrypt your sensitive, secure HTTPS communications, including passwords and credit card details… ...and that too in a matter of hours or in some cases almost immediately, a team of 15 security researchers from various universities and the infosec community warned Tuesday. Here's what the security researchers said: "We've been able to execute the attack against OpenSSL versions that are vulnerable to CVE-2016-0703 in under a minute using a single PC. Even for servers that do not have these particular bugs, the general variant of the attack, which works against any SSLv2 server, can be conducted in under 8 hour...

It is finally time to say GoodBye to the old and insecure Web security protocols. Citing the long history of weaknesses in the Secure Sockets Layer (SSL) 3.0 cryptographic protocol and the RC4 Cipher Suite, Google plans to disable support for both SSLv3 as well as RC4 stream cipher in its front-end servers. While announcing on its official blog , the Search Engine giant said the company is looking to put away SSLv3 and RC4 in all of its front-end servers, and eventually, in all its software including Chrome, Android, Web crawlers, and email servers. The move by Google came as no surprise, considering the fact that both RC4 and SSLv3 have been deemed unsecure by the Internet Engineering Task Force (IETF). What are the Problems? SSLv3, which was made outdated 16 years ago, has a long history of security problems like BEAST , out of them the most recent one was POODLE ( Padding Oracle On Downgraded Legacy Encryption ) attacks, which lead to the recovery of plaintext communication...

One of the most popular computer manufacturers Lenovo is being criticized for selling laptops pre-installed with invasive marketing software, or malware that, experts say, opens up a door for hackers and cyber crooks. The software, dubbed ' Superfish Malware ', analyzes users' Internet habits and injects third-party advertising into websites on browsers such as Google Chrome and Internet Explorer based on that activities without the user's permission. Security researchers recently discovered  Superfish Malware  presents onto new consumer-grade Lenovo computers sold before January of 2015. When taken out of the box for the first time, the adware gets activated and because it comes pre-installed, Lenovo customers might end up using it inadvertently. SUPERFISH CERTIFICATE PASSWORD CRACKED The  Superfish Malware  raised serious security concerns about the company's move for breaking fundamental web security protocols, carrying out " Man in the Middle " ...

After the wide chain of scandals over US global snooping that seriously damaged the trust on the top U.S. Tech companies, Google and Yahoo! came forward and took initiative to provide more secure, encrypted and NSA-proofed service in an effort to gain their reputation again among its users. Now, Microsoft has also announced several improvements to the encryption used in its online cloud services in order to protect them from cyber criminals, bad actors and prying eyes. The company effort detailed in a blog entry by Matt Thomlinson, Microsoft's Vice President of Trustworthy Computing Security. MICROSOFT'S COMMITMENT Last December, Microsoft promised to protect its users data from government snooping by expanding encryption across its services, reinforcing legal protections for its customers' data and enhancing the transparency of its software code, making it easier for the customers to reassure themselves that its products contain no backdoors. Yesterday's announc...

TWITTER is taking users' privacy and security very seriously and in an effort to prevent Government snooping, the company has secured your Twitter emails with with TLS (Transport Layer Security). Twitter emails were previously using a plain text communication protocol, that now has been upgraded to an encrypted (TLS or SSL) connection using STARTTLS . In a blog post, Twitter announced : " Since mid-January, we have been protecting your emails from Twitter using TLS in the form of StartTLS. StartTLS encrypts emails as they transit between sender and receiver and is designed to prevent snooping. It also ensures that emails you receive from Twitter haven't been read by other parties on the way to your inbox if your email provider supports TLS. " " These email security protocols are part of our commitment to continuous improvement in privacy protections and complement improvements like our securing of web traffic with forward secrecy and always-on HTT...