Broadcom brcmfmac WiFi Driver Wake-up on Wireless LAN brcmf_wowl_nd_results WiFi Packet memory corruption – Digitalmunition




Exploit/Advisories Cybersecurity study of the dark web exposes vulnerability to machine identities -- ScienceDaily

Published on January 19th, 2020 📆 | 6195 Views ⚑

0

Broadcom brcmfmac WiFi Driver Wake-up on Wireless LAN brcmf_wowl_nd_results WiFi Packet memory corruption

CVSS Meta Temp Score

CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.

Current Exploit Price (≈)

Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.

CTI Interest Score

Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

7.2$0-$5k2.53

A vulnerability, which was classified as critical, has been found in Broadcom brcmfmac WiFi Driver (Hardware Driver Software) (unknown version). This issue affects the function brcmf_wowl_nd_results of the component Wake-up on Wireless LAN. The manipulation as part of a WiFi Packet leads to a memory corruption vulnerability (Heap-based). Using CWE to declare the problem leads to CWE-122. Impacted is confidentiality, integrity, and availability.

The bug was discovered 04/17/2019. The weakness was disclosed 01/16/2020. The identification of this vulnerability is CVE-2019-9500 since 03/01/2019. The exploitation is known to be difficult. The attack can only be done within the local network. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 274 days. During that time the estimated underground price was around $0-$5k.

Applying the patch 1b5e2423164b3670e8bc9174e4762d297990deff is able to eliminate this problem.

The entry 149088 is pretty similar.

Type

Vendor

Name

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.9
NVD Vector: 🔒

AVACAuCIA
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock


VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Memory corruption / Heap-based (CWE-122)
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 1b5e2423164b3670e8bc9174e4762d297990deff

03/01/2019 CVE assigned
04/17/2019 +47 days Vulnerability found
01/16/2020 +274 days Advisory disclosed
01/17/2020 +1 days VulDB entry created
01/17/2020 +0 days VulDB last update
CVE: CVE-2019-9500 (🔒)
OSVDB: – Broadcom brcmfmac driver buffer overflow

See also: 🔒

Created: 01/17/2020 07:02 AM
Complete: 🔍

Comments

Check our Alexa App!

https://vuldb.com/?id.149087

Tagged with:



Leave a Reply ✍


loading...