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Cross-protocol attack on TLS using SSLv2 (DROWN) (CVE-2016-0800)

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Cross-protocol attack on TLS using SSLv2 (DROWN) (CVE-2016-0800)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
03/01/2016
Created
07/25/2018
Added
03/09/2016
Modified
10/30/2017

Description

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack.

Solution(s)

  • ssl-disable-insecure-protocols

References

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