![]() Heartbleed allows a hacker to retrieve chunks of the server memory – up to 64K at a time. The newly discovered vulnerability isn’t “big news” because of its complexity, but for the fact that the amazingly simple bug existed in an extremely popular SSL/TLS implementation for two years before anyone noticed, allowing millions of servers to remain vulnerable and open to hacker attacks. One security analyst called it “catastrophic” and said that on a scale of 1 to 10, the vulnerability was an 11. ![]() The OpenSSL encryption flaw, known as the Heartbleed bug, is being called one of the biggest security flaws ever seen on the Internet. Who coordinates response to this vulnerability?.Can heartbeat extension be disabled during the TLS handshake?.Does Perfect Forward Secrecy (PFS) mitigate this?.Does OpenSSL’s FIPS mode mitigate this?.Does TLS client certificate authentication mitigate this?.Is this a MITM bug like Apple’s goto fail bug was?.Can attacker access only 64k of the memory?.Can IDS/IPS detect or block this attack?.Can I detect if someone has exploited this against me?.How common are the vulnerable OpenSSL versions?.What versions of the OpenSSL are affected?.How revocation and reissuing of certificates works in practice?.Recovery sounds laborious, is there a short cut?.What is leaked collateral and how to recover?.What is leaked protected content and how to recover?.What is leaked secondary key material and how to recover?.What is leaked primary key material and how to recover?.Is this a design flaw in SSL/TLS protocol specification?.Additional information about Heartbleed.Heartbleed itself it mind-blowingly simple.
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