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hackeroneNimiaH1:166629
HistorySep 07, 2016 - 5:34 p.m.

Internet Bug Bounty: Cross-protocol attack on TLS using SSLv2 (DROWN) (CVE-2016-0800)

2016-09-0717:34:32
nimia
hackerone.com
29

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

0.95 High

EPSS

Percentile

99.0%

JSON

General DROWN was responsibly disclosed to the OpenSSL team prior to the public disclosure.
This OpenSSL blog post, by Viktor Dukhovni and Emilia Käsper, describes the vulnerability:
https://www.openssl.org/blog/blog/2016/03/01/an-openssl-users-guide-to-drown/

This is probably a good opportunity to again thank everyone who helped with the disclosure process :-)

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5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

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Availability Impact

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CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

0.95 High

EPSS

Percentile

99.0%

JSON
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