VDB-175460 · CVE-2020-12061 · GCVE-0-2020-12061

Nitrokey FIDO U2F up to 1.1 Firmware cleartext transmission

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.
2.6	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Nitrokey FIDO U2F up to 1.1. Affected is an unknown function of the component Firmware Handler. Such manipulation leads to cleartext transmission. This vulnerability is referenced as CVE-2020-12061. No exploit is available.

Detailsinfo

A vulnerability was found in Nitrokey FIDO U2F up to 1.1 and classified as problematic. Affected by this issue is an unknown code block of the component Firmware Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality.

The weakness was published 05/21/2021. The advisory is shared for download at eprint.iacr.org. This vulnerability is handled as CVE-2020-12061. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1040.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Nitrokey

Name

FIDO U2F

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.6
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Cleartext transmission
CWE: CWE-319 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

04/22/2020 🔍
05/21/2021 +394 days 🔍
05/21/2021 +0 days 🔍
05/23/2021 +2 days 🔍

Sourcesinfo

Advisory: eprint.iacr.org
Status: Not defined

CVE: CVE-2020-12061 (🔍)
GCVE (CVE): GCVE-0-2020-12061
GCVE (VulDB): GCVE-100-175460

Entryinfo

Created: 05/21/2021 16:25
Updated: 05/23/2021 12:42
Changes: 05/21/2021 16:25 (36), 05/23/2021 12:42 (2)
Complete: 🔍
Cache ID: 216::103