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Are you safe from the critical bug Heartbleed?? OpenSSL- the encryption technology used by millions of websites to encrypt the communication and is also used to protect our sensitive data such as e-mails, passwords or banking information. But a tiny, but most critical flaw called “Heartbleed” in the widely used OpenSSL opened doors for the cyber criminals to extract sensitive data from the system memory.SSL and TLS are known to provide communication security and privacy over the Internet for applications such as websites, email, instant messaging (IM), including some virtual private networks (VPNs).Heartbleed is a critical bug (CVE-2014-0160) is in the popular OpenSSL cryptographic software library, that actually resides in the OpenSSL’s implementation of the TLS (transport layer security protocols) and DTLS (Datagram TLS) heartbeat extension (RFC6520).This bug was independently discovered by a team of security engineers (Riku, Antti and Matti) at Codenomicon, while improving the SafeGuard feature in Codenomicon’s Defensics security testing tools, and Neel Mehta of Google Security, who first reported it to the OpenSSL team.Software vulnerabilities may come and go, but this bug is more critical as it has left the large number of private keys and other secrets exposed to the Internet. The heartbleed bug can reveal the contents of a server’s memory, where the most sensitive data is stored, including the private data such as usernames, passwords, and credit card numbers. This could allow attackers to retrieve private keys and ultimately decrypt the server’s encrypted traffic or even impersonate the server.
OpenSSL is most widely used cryptographic library for Apache and nginx Web servers, which handles a service of Transport Layer Security (TLS) called Heartbeat, an extension added to TLS in 2012. The combined market share of just those two, Apache and nginx, out of the active sites on the Internet is over 66% according to Netcraft’s April 2014 Web Server Survey.Moreover, OpenSSL is used to protect email servers (SMTP, POP and IMAP protocols), chat servers (XMPP protocol), virtual private networks (SSL VPNs), network appliances and wide variety of client side software. Many large consumer sites are also saved by their conservative choice of SSL/TLS termination equipment and software. OpenSSL is also very popular in client software and somewhat popular in networked appliances which have most inertia in getting updates.
Security researcher ‘Robert Graham’ scanned the Internet and found that more than 600,000 servers are vulnerable to heartbleed flaw, including Yahoo.com, imgur.com, flickr.com, hidemyass.com. [List]
Because of Heartbleed bug, the Canada Revenue Agency was forced to shut down its electronic tax collection service yesterday and apparently, World’s biggest audio platform SoundCloud also logged out its users for fixing this flaw.
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