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Ruby: imap: StartTLS stripping attack (CVE-2016-0772).

🗓️ 28 Apr 2021 16:06:30Reported by sighookType 
hackerone
 hackerone🔗 hackerone.com👁 129 Views

Ruby: imap: StartTLS stripping attack (CVE-2016-0772). `net/imap` does not raise an exception when the remote end fails to respond with tagged_response (NO/BAD) or OK to an explicit call of `imap.starttls`

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rubyimapstarttlsstrippingattackcve-2016-0772net/imapexceptionremotetagged_responseno/badokstarttlsnegotiationusesslclient codemitmproxyauthenticationloginsslsessionciphermismatchcertificatesvulnerabilitypoc
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