CVE-2020-10027

ARC Platform Uses Signed Integer Comparison When Validating Syscall Numbers

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Un atacante que ha obtenido una ejecución de código dentro de un subproceso (hilo) de usuario es capaz de elevar los privilegios a los del kernel. Consulte NCC-ZEP-001. Este problema afecta a: zephyrproject-rtos zephyr versión 1.14.0 y versiones posteriores. Versión 2.1.0 y versiones posteriores.

*Credits: NCC Group for report

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-03 CVE Reserved
2020-05-11 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-697: Incorrect Comparison

CAPEC

References (5)

URL	Tag	Source
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10027	X_refsource_misc
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-35	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/zephyrproject-rtos/zephyr/pull/23328	2020-06-05
https://github.com/zephyrproject-rtos/zephyr/pull/23499	2020-06-05
https://github.com/zephyrproject-rtos/zephyr/pull/23500	2020-06-05

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zephyrproject Search vendor "Zephyrproject"		Zephyr Search vendor "Zephyrproject" for product "Zephyr"				1.14.0 Search vendor "Zephyrproject" for product "Zephyr" and version "1.14.0"		-		Affected
Zephyrproject Search vendor "Zephyrproject"		Zephyr Search vendor "Zephyrproject" for product "Zephyr"				2.1.0 Search vendor "Zephyrproject" for product "Zephyr" and version "2.1.0"		-		Affected