VDB-152215 · CVE-2020-10941 · DLA 3249-1

ARM mbed TLS up to 2.6.14 Cache Key missing encryption

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.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ARM mbed TLS up to 2.6.14. It has been rated as problematic. This affects an unknown function of the component Cache Handler. This manipulation causes missing encryption (Key). This vulnerability is registered as CVE-2020-10941. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in ARM mbed TLS up to 2.6.14. It has been declared as problematic. Affected by this vulnerability is an unknown function of the component Cache Handler. The manipulation with an unknown input leads to a missing encryption vulnerability (Key). The CWE definition for the vulnerability is CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. As an impact it is known to affect confidentiality. The summary by CVE is:

Arm Mbed TLS before 2.6.15 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.

The weakness was published 03/24/2020. This vulnerability is known as CVE-2020-10941 since 03/24/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

Upgrading to version 2.6.15 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

ARM mbed TLS

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Key
Class: Missing encryption / Key
CWE: CWE-311 / CWE-310
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ARM mbed TLS 2.6.15

Timelineinfo

03/24/2020 🔍
03/24/2020 +0 days 🔍
03/25/2020 +1 days 🔍
05/11/2024 +1508 days 🔍

Sourcesinfo

Advisory: DLA 3249-1
Status: Not defined

CVE: CVE-2020-10941 (🔍)
GCVE (CVE): GCVE-0-2020-10941
GCVE (VulDB): GCVE-100-152215

Entryinfo

Created: 03/25/2020 10:56
Updated: 05/11/2024 09:16
Changes: 03/25/2020 10:56 (37), 03/25/2020 11:01 (17), 05/11/2024 09:16 (19)
Complete: 🔍
Cache ID: 216::103