8.8
HIGH
CVE-2017-6956
Broadcom Wi-Fi HardMAC SoC fbt Firmware Stack Buffer Overflow (Remote Code Execution)
Description

On the Broadcom Wi-Fi HardMAC SoC with fbt firmware, a stack buffer overflow occurs when handling an 802.11r (FT) authentication response, leading to remote code execution via a crafted access point that sends a long R0KH-ID field in a Fast BSS Transition Information Element (FT-IE).

INFO

Published Date :

April 5, 2017, 2:59 p.m.

Last Modified :

April 11, 2017, 7:33 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-6956 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Broadcom hardmac_wi-fi_soc_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-6956.

URL Resource
https://bugs.chromium.org/p/project-zero/issues/detail?id=1059 Third Party Advisory
https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-6956 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-6956 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 11, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html No Types Assigned https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html Third Party Advisory
    Changed Reference Type https://bugs.chromium.org/p/project-zero/issues/detail?id=1059 No Types Assigned https://bugs.chromium.org/p/project-zero/issues/detail?id=1059 Third Party Advisory
    Added CWE CWE-119
    Added CPE Configuration AND OR *cpe:2.3:o:broadcom:hardmac_wi-fi_soc_firmware:6.37.34.40:*:*:*:*:*:*:* OR cpe:2.3:h:broadcom:hardmac_wi-fi_soc:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.28 }} 0.25%

score

0.84330

percentile

CVSS30 - Vulnerability Scoring System
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