VDB-156219 · CVE-2020-10071 · GCVE-0-2020-10071

zephyrproject-rtos 2.2.x MQTT Parser Length Field array index

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.
8.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in zephyrproject-rtos 2.2.x. It has been rated as critical. This affects an unknown function of the component MQTT Parser. Performing a manipulation as part of Length Field results in array index. This vulnerability is cataloged as CVE-2020-10071. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in zephyrproject-rtos 2.2.x (Project Management Software). It has been classified as critical. This affects an unknown function of the component MQTT Parser. The manipulation as part of a Length Field leads to a array index vulnerability. CWE is classifying the issue as CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentially remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.

The weakness was shared 06/05/2020. This vulnerability is uniquely identified as CVE-2020-10071 since 03/04/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

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

The entries VDB-156218, VDB-156217, VDB-156216 and VDB-156215 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Project Management Software

Name

zephyrproject-rtos

Version

2.2.x

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.3
VulDB Temp Score: 8.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.0
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Array index
CWE: CWE-129 / 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

03/04/2020 🔍
06/05/2020 +93 days 🔍
06/06/2020 +1 days 🔍
10/22/2020 +138 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-10071 (🔍)
GCVE (CVE): GCVE-0-2020-10071
GCVE (VulDB): GCVE-100-156219
See also: 🔍

Entryinfo

Created: 06/06/2020 08:57
Updated: 10/22/2020 15:50
Changes: 06/06/2020 08:57 (36), 06/06/2020 09:02 (12), 10/22/2020 15:50 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.