Citizens Community Bank Banking App 3.0.1 on iOS X.509 Certificate Crafted Certificate certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Citizens Community Bank Banking App 3.0.1 on iOS. Affected by this issue is some unknown functionality of the component X.509 Certificate. The manipulation as part of Crafted Certificate leads to certificate validation. This vulnerability is uniquely identified as CVE-2017-9571. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Citizens Community Bank Banking App 3.0.1 on iOS (Banking Software) and classified as critical. This issue affects some unknown functionality of the component X.509 Certificate. The manipulation as part of a Crafted Certificate 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. The summary by CVE is:

The Citizens Community Bank (TN) ccb-mobile-banking/id610030469 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The bug was discovered 06/15/2017. The weakness was disclosed 06/16/2017 (Website). It is possible to read the advisory at medium.com. The identification of this vulnerability is CVE-2017-9571 since 06/12/2017. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

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

The entries VDB-102574, VDB-102575, VDB-102576 and VDB-102577 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
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: 🔍

Physical: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/12/2017 🔍
06/15/2017 +3 days 🔍
06/16/2017 +1 days 🔍
06/16/2017 +0 days 🔍
06/16/2017 +0 days 🔍
10/18/2019 +854 days 🔍

Sourcesinfo

Advisory: medium.com
Status: Not defined

CVE: CVE-2017-9571 (🔍)
GCVE (CVE): GCVE-0-2017-9571
GCVE (VulDB): GCVE-100-102587
See also: 🔍

Entryinfo

Created: 06/16/2017 21:12
Updated: 10/18/2019 16:44
Changes: 06/16/2017 21:12 (60), 10/18/2019 16:44 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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