MasterCard Qkr! App up to 5.0.7 on iOS SSL Certificate Validator certificate validation

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
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5.6$0-$5k0.00

A vulnerability was found in MasterCard Qkr! App up to 5.0.7 on iOS (iOS App Software). It has been rated as critical. Affected by this issue is an unknown function of the component SSL Certificate Validator. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The MasterCard Qkr! app before 5.0.8 for iOS has Missing SSL Certificate Validation. NOTE: this CVE only applies to obsolete versions from 2016 or earlier.

The bug was discovered 02/06/2019. The weakness was published 03/21/2019 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2019-6702 since 01/23/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability was handled as a non-public zero-day exploit for at least 43 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.0.8 eliminates this vulnerability.

Similar entries are available at VDB-155670, VDB-156661, VDB-157129 and VDB-157130.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Qkr! App 5.0.8

Timelineinfo

01/23/2019 🔍
02/06/2019 +14 days 🔍
03/21/2019 +43 days 🔍
03/22/2019 +1 days 🔍
08/04/2023 +1596 days 🔍

Sourcesinfo

Advisory: 151524
Status: Not defined

CVE: CVE-2019-6702 (🔍)
See also: 🔍

Entryinfo

Created: 03/22/2019 08:40 AM
Updated: 08/04/2023 07:55 AM
Changes: 03/22/2019 08:40 AM (61), 05/18/2020 04:24 PM (1), 08/04/2023 07:55 AM (4)
Complete: 🔍
Cache ID: 35:1C9:40

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