The Hacker News Logo
Subscribe to Newsletter

The Hacker News - Cybersecurity News and Analysis: steal crypto keys

Serious Bug Exposes Sensitive Data From Millions Sites Sitting Behind CloudFlare

Serious Bug Exposes Sensitive Data From Millions Sites Sitting Behind CloudFlare

February 24, 2017Swati Khandelwal
A severe security vulnerability has been discovered in the CloudFlare content delivery network that has caused big-name websites to expose private session keys and other sensitive data. CloudFlare, a content delivery network (CDN) and web security provider that helps optimize safety and performance of over 5.5 Million websites on the Internet, is warning its customers of the critical bug that could have exposed a range of sensitive information, including passwords, and cookies and tokens used to authenticate users. Dubbed Cloudbleed , the nasty flaw is named after the Heartbleed bug that was discovered in 2014, but believed to be worse than Heartbleed. The vulnerability is so severe that it not only affects websites on the CloudFlare network but affects mobile apps as well. What exactly is "Cloudbleed," how it works, how are you affected by this bug, and how you can protect yourself? Let's figure it out. What is Cloudbleed? Discovered by Google Project Ze
Critical OpenSSH Flaw Leaks Private Crypto Keys to Hackers

Critical OpenSSH Flaw Leaks Private Crypto Keys to Hackers

January 15, 2016Swati Khandelwal
A 'Serious' security vulnerability has been discovered and fixed in OpenSSH – one of the most widely used open-source implementations of the Secure Shell (SSH) Protocol. The critical vulnerability could be exploited by hackers to force clients to leak their secret private cryptographic keys, potentially exposing users to Man-in-the-Middle (MITM) attacks. What Causes the Flaw to occur? The serious bug was actually the result of a code that enables an experimental " roaming " feature in the OpenSSH versions 5.4 to 7.1 in order to let users resume connections. However, The roaming feature contains two different vulnerabilities: An information sharing flaw ( CVE-2016-0777 ) A less harmless buffer overflow flaw ( CVE-2016-0778 ) The vulnerability does not have any catchy name like some previous OpenSSH flaws. Impact of the Vulnerability This new feature can be exploited by hackers, who could use a malicious OpenSSH server to trick a
Heartbleed - OpenSSL Zero-day Bug leaves Millions of websites Vulnerable

Heartbleed - OpenSSL Zero-day Bug leaves Millions of websites Vulnerable

April 08, 2014Wang Wei
It is advised to those who are running their web server with OpenSSL 1.0.1 through 1.0, then it is significantly important that you update to OpenSSL 1.0.1g immediately or as soon as possible.  As this afternoon, an extremely critical programming flaw in the OpenSSL has been discovered that apparently exposed the cryptographic keys and private data from some of the most important sites and services on the Internet. The bug was independently discovered by security firm Codenomicon along with a Google Security engineer. The flaw is in the popular OpenSSL cryptographic software library and its weakness allows cyber criminals to steal the information protected, under normal conditions, by the SSL (Secure Sockets Layer) or TLS (Transport Security Layer) encryption used to secure the Internet. OpenSSL is an open-source implementation of the SSL and TLS protocols. The core library implements the basic cryptographic functions that enable SSL and TLS encryption. Mostly every w
Online Courses and Software

Sign up for cybersecurity newsletter and get latest news updates delivered straight to your inbox daily.