VDB-242160 · CVE-2023-4257 · GHSA-853q-q69w-gf5j

zephyrproject-rtos zephyr WiFi Shell wifi_shell.c buffer overflow

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.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in zephyrproject-rtos zephyr. The affected element is an unknown function of the file /subsys/net/l2/wifi/wifi_shell.c of the component WiFi Shell Module. The manipulation results in buffer overflow. This vulnerability is known as CVE-2023-4257. Access to the local network is required for this attack. No exploit is available.

Detailsinfo

A vulnerability was found in zephyrproject-rtos zephyr (Project Management Software) (affected version not known). It has been classified as critical. Affected is some unknown functionality of the file /subsys/net/l2/wifi/wifi_shell.c of the component WiFi Shell Module. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 10/14/2023 as GHSA-853q-q69w-gf5j. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-4257 since 08/08/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/02/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Project Management Software

Vendor

zephyrproject-rtos

Name

zephyr

License

open-source

Website

Product: https://github.com/zephyrproject-rtos/zephyr/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 7.6
CNA Vector (Zephyr Project): 🔍

CVSSv2info

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: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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 Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/08/2023 🔍
10/14/2023 +67 days 🔍
10/14/2023 +0 days 🔍
11/02/2023 +19 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-853q-q69w-gf5j
Status: Confirmed

CVE: CVE-2023-4257 (🔍)
GCVE (CVE): GCVE-0-2023-4257
GCVE (VulDB): GCVE-100-242160

Entryinfo

Created: 10/14/2023 07:54
Updated: 11/02/2023 11:44
Changes: 10/14/2023 07:54 (49), 11/02/2023 11:44 (11)
Complete: 🔍
Cache ID: 216::103