VDB-154980 · CVE-2020-10024 · GCVE-0-2020-10024

zephyrproject-rtos zephyr 1.14.x on ARM System Call comparison

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in zephyrproject-rtos zephyr 1.14.x on ARM. Affected by this issue is some unknown functionality of the component System Call Handler. The manipulation results in comparison. This vulnerability is known as CVE-2020-10024. Attacking locally is a requirement. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in zephyrproject-rtos zephyr 1.14.x on ARM (Project Management Software). Affected is an unknown function of the component System Call Handler. The manipulation with an unknown input leads to a comparison vulnerability. CWE is classifying the issue as CWE-697. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The arm platform-specific code uses a signed integer comparison when validating system call numbers. An attacker who has obtained code execution within a user thread is able to elevate privileges to that of the kernel. See NCC-ZEP-001 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.

The weakness was published 05/11/2020. This vulnerability is traded as CVE-2020-10024 since 03/03/2020. The exploitability is told to be difficult. The attack needs to be approached locally. The successful exploitation requires a authentication. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.1.0 eliminates this vulnerability.

Similar entries are available at VDB-154984, VDB-154983, VDB-154982 and VDB-154981. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Project Management Software

Vendor

zephyrproject-rtos

Name

zephyr

Version

1.14.x

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

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: Comparison
CWE: CWE-697
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: zephyr 2.1.0

Timelineinfo

03/03/2020 🔍
05/11/2020 +69 days 🔍
05/12/2020 +1 days 🔍
10/16/2020 +157 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-10024 (🔍)
GCVE (CVE): GCVE-0-2020-10024
GCVE (VulDB): GCVE-100-154980
See also: 🔍

Entryinfo

Created: 05/12/2020 07:24
Updated: 10/16/2020 13:16
Changes: 05/12/2020 07:24 (40), 05/12/2020 07:29 (12), 10/16/2020 13:16 (1)
Complete: 🔍
Cache ID: 216::103