CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.4 | $0-$5k | 0.00 |
A vulnerability was found in Mozilla Firefox (Web Browser) (affected version unknown). It has been classified as problematic. Affected is an unknown functionality of the component HTTP/2 Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (HEIST). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:
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.
The weakness was disclosed 08/03/2016 by Mathy Vanhoef and Tom Van Goethem with iMinds-DistriNet as HEIST: HTTP Encrypted Information can be Stolen through TCP-windows as confirmed paper (Blackhat). The advisory is available at blackhat.com. The vendor was not involved in the coordination of the public release. This vulnerability is traded as CVE-2016-7153 since 09/06/2016. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/15/2022). This vulnerability is assigned to T1592 by the MITRE ATT&CK project. This vulnerability has a historic impact due to its background and reception.
The best possible mitigation is suggested to be Workaround.
Further details are available at arstechnica.com. The entries 91292, 91293, 91294 and 91295 are pretty similar.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.5VulDB Meta Temp Score: 4.4
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: HEISTClass: Information disclosure / HEIST
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: WorkaroundStatus: 🔍
0-Day Time: 🔍
Timeline
08/03/2016 🔍09/06/2016 🔍
09/06/2016 🔍
09/06/2016 🔍
09/07/2016 🔍
09/15/2022 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: HEIST: HTTP Encrypted Information can be Stolen through TCP-windows
Researcher: Mathy Vanhoef, Tom Van Goethem
Organization: iMinds-DistriNet
Status: Confirmed
CVE: CVE-2016-7153 (🔍)
SecurityTracker: 1036741
SecurityFocus: 92773 - HTTP/2 CVE-2016-7153 Information Disclosure Vulnerability
Misc.: 🔍
See also: 🔍
Entry
Created: 09/07/2016 11:07Updated: 09/15/2022 08:19
Changes: 09/07/2016 11:07 (53), 04/10/2019 21:42 (9), 09/15/2022 08:16 (3), 09/15/2022 08:19 (11)
Complete: 🔍
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