Vulnerability Details : CVE-2016-7153
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.
Vulnerability category: Information leak
Products affected by CVE-2016-7153
- cpe:2.3:a:microsoft:internet_explorer:-:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*
- cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:chrome:-:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-7153
0.55%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-7153
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2016-7153
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-7153
-
https://tom.vg/papers/heist_blackhat2016.pdf
Technical Description
-
http://www.securitytracker.com/id/1036745
Mozilla Firefox HTTPS API Attack Against TCP Congestion Window Protocol Lets Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
-
http://arstechnica.com/security/2016/08/new-attack-steals-ssns-e-mail-addresses-and-more-from-https-pages/
New attack steals SSNs, e-mail addresses, and more from HTTPS pages | Ars TechnicaTechnical Description
-
http://www.securityfocus.com/bid/92773
HTTP/2 CVE-2016-7153 Information Disclosure Vulnerability
-
http://www.securitytracker.com/id/1036743
Microsoft Internet Explorer HTTPS API Attack Against TCP Congestion Window Protocol Lets Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
-
http://www.securitytracker.com/id/1036746
Apple Safari HTTPS API Attack Against TCP Congestion Window Protocol Lets Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
-
http://www.securitytracker.com/id/1036741
Google Chrome HTTPS API Attack Against TCP Congestion Window Protocol Lets Remote Users Obtain Potentially Sensitive Information from the Target System in Certain Cases - SecurityTracker
-
http://www.securitytracker.com/id/1036742
Microsoft Edge HTTPS API Attack Against TCP Congestion Window Protocol Lets Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
-
http://www.securitytracker.com/id/1036744
Opera HTTPS API Attack Against TCP Congestion Window Protocol Lets Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
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