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The Hacker News - Cybersecurity News and Analysis: LogJam

Critical OpenSSL Flaw Allows Hackers to Decrypt HTTPS Traffic

Critical OpenSSL Flaw Allows Hackers to Decrypt HTTPS Traffic

January 29, 2016Mohit Kumar
The OpenSSL Foundation has released the promised patch for a high severity vulnerability in its cryptographic code library that let attackers obtain the key to decrypt HTTPS-based communications and other Transport layer security (TLS) channels. OpenSSL is an open-source library that is the most widely used in applications for secure data transfers. Most websites use it to enable Secure Sockets Layer (SSL) or Transport Layer Security (TLS) encryption. However, after serious security vulnerabilities were discovered in OpenSSL over the last few years, the crypto library has been under much investigation by security researchers. The latest bugs affect OpenSSL versions 1.0.1 and 1.0.2, which has been patched in new releases of OpenSSL, versions 1.0.1r and 1.0.2f . The team has patched two separate vulnerabilities in OpenSSL. The " high severity " bug, identified as CVE-2016-0701 , addresses issues in the implementations of the Diffie-Hellman key exchang
LogJam — This New Encryption Glitch Puts Internet Users at Risk

LogJam — This New Encryption Glitch Puts Internet Users at Risk

May 20, 2015Mohit Kumar
After HeartBleed , POODLE and FREAK  encryption flaws, a new encryption attack has been emerged over the Internet that allows attackers to read and modify the sensitive data passing through encrypted connections, potentially affecting hundreds of thousands of HTTPS-protected sites, mail servers, and other widely used Internet services. A team of security researchers has discovered a new attack, dubbed Logjam , that allows a man-in-the-middle (MitM) to downgrade encrypted connections between a user and a Web or email server to use extremely weaker 512-bit keys which can be easily decrypted. Johns Hopkins crypto researcher Matthew Green along with security experts from the University of Michigan and the French research institute Inria has discovered LogJam a few months ago and published a technical report that details the flaw. Logjam — Cousin of FREAK Logjam encryption flaw sounds just like FREAK vulnerability disclosed at the beginning of March.  The FREA
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