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MitreCVE-2016-7153

HistorySep 06, 2016 - 10:59 a.m.

CVE-2016-7153

2016-09-0610:59:01

CWE-200

mitre

web.nvd.nist.gov

cve-2016-7153

http/2 protocol

tcp congestion window

heist attack

security vulnerability

nvd

information security

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

4.9

Confidence

High

EPSS

0.005

Percentile

77.6%

JSON

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.

Affected configurations

Nvd

Node

microsoftedgeMatch-

microsoftinternet_explorerMatch-

Node

googlechromeMatch-

Node

applesafari

Node

operaopera_browserMatch-

Node

mozillafirefox

VendorProductVersionCPE
microsoftedge-cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*
microsoftinternet_explorer-cpe:2.3:a:microsoft:internet_explorer:-:*:*:*:*:*:*:*
googlechrome-cpe:2.3:a:google:chrome:-:*:*:*:*:*:*:*
applesafari*cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
operaopera_browser-cpe:2.3:a:opera:opera_browser:-:*:*:*:*:*:*:*
mozillafirefox*cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
microsoft	edge	-	cpe:2.3:a:microsoft:edge:-:::::::*
microsoft	internet_explorer	-	cpe:2.3:a:microsoft:internet_explorer:-:::::::*
google	chrome	-	cpe:2.3:a:google:chrome:-:::::::*
apple	safari	*	cpe:2.3:a:apple:safari::::::::
opera	opera_browser	-	cpe:2.3:a:opera:opera_browser:-:::::::*
mozilla	firefox	*	cpe:2.3:a:mozilla:firefox::::::::

References

arstechnica.com/security/2016/08/new-attack-steals-ssns-e-mail-addresses-and-more-from-https-pages/

www.securityfocus.com/bid/92773

www.securitytracker.com/id/1036741

www.securitytracker.com/id/1036742

www.securitytracker.com/id/1036743

www.securitytracker.com/id/1036744

www.securitytracker.com/id/1036745

www.securitytracker.com/id/1036746

tom.vg/papers/heist_blackhat2016.pdf

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

4.9

Confidence

High

EPSS

0.005

Percentile

77.6%

JSON

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