CVE-2020-36425

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.

Se ha detectado un problema en Arm Mbed TLS versiones anteriores a 2.24.0. Usa incorrectamente una comprobación de revocationDate cuando decide si acepta la revocación de certificados por medio de una CRL. En algunas situaciones, un atacante puede explotar esto al cambiar el reloj local

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-07-19 CVE Reserved
2021-07-19 CVE Published
2024-05-27 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (7)

URL	Tag	Source
https://github.com/ARMmbed/mbedtls/pull/3433	Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8	Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0	Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17	Release Notes
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html	Mailing List

URL	Date	SRC
https://github.com/ARMmbed/mbedtls/issues/3340	2024-08-04

URL	Date	SRC
https://bugs.gentoo.org/740108	2023-01-11

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Arm Search vendor "Arm"		Mbed Tls Search vendor "Arm" for product "Mbed Tls"				< 2.7.17 Search vendor "Arm" for product "Mbed Tls" and version " < 2.7.17"		-		Affected
Arm Search vendor "Arm"		Mbed Tls Search vendor "Arm" for product "Mbed Tls"				>= 2.8.0 < 2.16.8 Search vendor "Arm" for product "Mbed Tls" and version " >= 2.8.0 < 2.16.8"		-		Affected
Arm Search vendor "Arm"		Mbed Tls Search vendor "Arm" for product "Mbed Tls"				>= 2.17.0 < 2.24.0 Search vendor "Arm" for product "Mbed Tls" and version " >= 2.17.0 < 2.24.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected