8.8
HIGH
CVE-2019-6496
Marvell Avastar Wi-Fi Devices Wi-Fi Packet Processing Buffer Overflow Denial of Service and Arbitrary Code Execution Vulnerability
Description

The ThreadX-based firmware on Marvell Avastar Wi-Fi devices, models 88W8787, 88W8797, 88W8801, 88W8897, and 88W8997, allows remote attackers to execute arbitrary code or cause a denial of service (block pool overflow) via malformed Wi-Fi packets during identification of available Wi-Fi networks. Exploitation of the Wi-Fi device can lead to exploitation of the host application processor in some cases, but this depends on several factors including host OS hardening and the availability of DMA.

INFO

Published Date :

Jan. 20, 2019, 8:29 p.m.

Last Modified :

Aug. 24, 2020, 5:37 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2019-6496 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 Marvell 88w8787_firmware
2 Marvell 88w8797_firmware
3 Marvell 88w8801_firmware
4 Marvell 88w8897_firmware
5 Marvell 88w8997_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-2019-6496.

URL Resource
http://www.securityfocus.com/bid/106865 Third Party Advisory VDB Entry
https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-Wi-Fi.pdf Exploit Third Party Advisory
https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/ Third Party Advisory
https://www.kb.cert.org/vuls/id/730261/ Third Party Advisory US Government Resource
https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_07 Third Party Advisory
https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gaming-devices/ Exploit Press/Media Coverage 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-2019-6496 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-6496 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
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-787
  • Modified Analysis by [email protected]

    Feb. 28, 2019

    Action Type Old Value New Value
    Changed Reference Type http://www.securityfocus.com/bid/106865 Third Party Advisory http://www.securityfocus.com/bid/106865 Third Party Advisory, VDB Entry
    Changed Reference Type https://www.synology.com/security/advisory/Synology_SA_19_07 No Types Assigned https://www.synology.com/security/advisory/Synology_SA_19_07 Third Party Advisory
    Changed Reference Type https://www.kb.cert.org/vuls/id/730261/ Third Party Advisory https://www.kb.cert.org/vuls/id/730261/ Third Party Advisory, US Government Resource
  • CVE Modified by [email protected]

    Feb. 23, 2019

    Action Type Old Value New Value
    Added Reference https://www.synology.com/security/advisory/Synology_SA_19_07 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 15, 2019

    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://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gaming-devices/ No Types Assigned https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gaming-devices/ Exploit, Press/Media Coverage, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/106865 No Types Assigned http://www.securityfocus.com/bid/106865 Third Party Advisory
    Changed Reference Type https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/ No Types Assigned https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/ Third Party Advisory
    Changed Reference Type https://www.kb.cert.org/vuls/id/730261/ No Types Assigned https://www.kb.cert.org/vuls/id/730261/ Third Party Advisory
    Changed Reference Type https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-Wi-Fi.pdf No Types Assigned https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-Wi-Fi.pdf Exploit, Third Party Advisory
    Changed Reference Type https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement No Types Assigned https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement Third Party Advisory
    Added CWE CWE-20
    Added CPE Configuration AND OR *cpe:2.3:o:marvell:88w8787_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:marvell:88w8787:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:marvell:88w8797_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:marvell:88w8797:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:marvell:88w8801_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:marvell:88w8801:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:marvell:88w8897_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:marvell:88w8897:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:marvell:88w8997_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:marvell:88w8997:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 08, 2019

    Action Type Old Value New Value
    Changed Description The ThreadX-based firmware on Marvell Avastar Wi-Fi devices allows remote attackers to execute arbitrary code or cause a denial of service (block pool overflow) via malformed Wi-Fi packets during identification of available Wi-Fi networks. Exploitation of the Wi-Fi device can lead to exploitation of the host application processor in some cases, but this depends on several factors including host OS hardening and the availability of DMA. The ThreadX-based firmware on Marvell Avastar Wi-Fi devices, models 88W8787, 88W8797, 88W8801, 88W8897, and 88W8997, allows remote attackers to execute arbitrary code or cause a denial of service (block pool overflow) via malformed Wi-Fi packets during identification of available Wi-Fi networks. Exploitation of the Wi-Fi device can lead to exploitation of the host application processor in some cases, but this depends on several factors including host OS hardening and the availability of DMA.
    Added Reference https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement [No Types Assigned]
    Added Reference https://www.kb.cert.org/vuls/id/730261/ [No Types Assigned]
    Added Reference https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-Wi-Fi.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 07, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/106865 [No Types Assigned]
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-6496 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-6496 weaknesses.

Exploit Prediction

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

2.35 }} 0.68%

score

0.90066

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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