FOITT COVID Certificate App/COVID Certificate Check App up to 2.2.0 on iOS QR Code denial of service

HistoryDiffrelatejsonxmlCTI

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.
1.9	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in FOITT COVID Certificate App and COVID Certificate Check App up to 2.2.0 on iOS. This affects an unknown part of the component QR Code Handler. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2021-37786. The attack can be executed directly on the physical device. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in FOITT COVID Certificate App and COVID Certificate Check App up to 2.2.0 on iOS (iOS App Software) and classified as problematic. Affected by this issue is some unknown functionality of the component QR Code Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was released 09/28/2021 as 146. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-37786 since 08/02/2021. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

The exploit is available at github.com. It is declared as proof-of-concept.

Upgrading to version 2.4.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

iOS App Software

Vendor

FOITT

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.1
VulDB Meta Temp Score: 1.9

VulDB Base Score: 2.1
VulDB Temp Score: 1.9
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: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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: COVID Certificate App/COVID Certificate Check App 2.4.0

Timelineinfo

08/02/2021 🔍
09/28/2021 +57 days 🔍
09/28/2021 +0 days 🔍
10/02/2021 +4 days 🔍

Sourcesinfo

Advisory: 146
Status: Confirmed

CVE: CVE-2021-37786 (🔍)
GCVE (CVE): GCVE-0-2021-37786
GCVE (VulDB): GCVE-100-183416
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/28/2021 02:15
Updated: 10/02/2021 20:31
Changes: 09/28/2021 02:15 (46), 10/02/2021 20:31 (1)
Complete: 🔍
Cache ID: 216::103