CVE-2016-7153 Information

Description

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent aka a \HEIST\ attack.

CVSS Vector

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

Reference

http://arstechnica.com/security/2016/08/new-attack-steals-ssns-e-mail-addresses-and-more-from-https-pages/ http://www.securityfocus.com/bid/92773 http://www.securitytracker.com/id/1036741 http://www.securitytracker.com/id/1036742 http://www.securitytracker.com/id/1036743 http://www.securitytracker.com/id/1036744 http://www.securitytracker.com/id/1036745 http://www.securitytracker.com/id/1036746 https://tom.vg/papers/heist_blackhat2016.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3