CVE-2017-17688

The OpenPGP specification allows a Cipher Feedback Mode CFB malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code MDC feature or accept an obsolete...

OpenPGP、S/MIME information disclosure (CVE-2017-17688,CVE-2017-17689)

EFAIL describes vulnerabilities in the end-to-end encryption technologies OpenPGP and S/MIME that leak the plaintext of encrypted emails. Email is a plaintext communication medium whose communication paths are partly protected by TLS TLS. For people in hostile environments journalists, political...

EFAIL Opens Up Encrypted Email to Prying Eyes

A set of vulnerabilities in the encryption technologies used to secure sensitive emails threatens to expose corporate communications as well as the messages of at-risk users such as journalists, political dissidents and whistleblowers operating in hostile environments. However, there is some deba...

Here's How eFail Attack Works Against PGP and S/MIME Encrypted Emails

With a heavy heart, security researchers have early released the details of a set of vulnerabilities discovered in email clients for two widely used email encryption standards—PGP and S/MIME—after someone leaked their paper on the Internet, which was actually scheduled for tomorrow. PGP and S/MIM...

Here's How eFail Attack Works Against PGP and S/MIME Encrypted Emails

With a heavy heart, security researchers have early released the details of a set of vulnerabilities discovered in email clients for two widely used email encryption standards—PGP and S/MIME—after someone leaked their paper on the Internet, which was actually scheduled for tomorrow. PGP and S/MIM...

CVE-2017-17689

The S/MIME specification allows a Cipher Block Chaining CBC malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. Mitigation The easiest way to mitigate this vulnerability is not to use HTML emails. If you really need to use them ensure that MUA clients disable...