Interval International App up to 3.5.1 on iOS X.509 Certificate Validation 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 has been found in Interval International App up to 3.5.1 on iOS and classified as critical. The impacted element is an unknown function of the component X.509 Certificate Validation. This manipulation causes certificate validation. This vulnerability is handled as CVE-2017-8941. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Interval International App up to 3.5.1 on iOS (iOS App Software). Affected by this vulnerability is an unknown part of the component X.509 Certificate Validation. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Interval International app 3.3 through 3.5.1 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 05/05/2017. The weakness was released 05/15/2017 (Website). It is possible to read the advisory at medium.com. This vulnerability is known as CVE-2017-8941 since 05/15/2017. The exploitation appears to be difficult. 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 T1587.003 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 10 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.

Entries connected to this vulnerability are available at VDB-100866, VDB-100867, VDB-100868 and VDB-100869. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

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

05/05/2017 🔍
05/15/2017 +10 days 🔍
05/15/2017 +0 days 🔍
05/15/2017 +0 days 🔍
05/16/2017 +1 days 🔍
09/26/2020 +1229 days 🔍

Sourcesinfo

Advisory: medium.com
Status: Not defined

CVE: CVE-2017-8941 (🔍)
GCVE (CVE): GCVE-0-2017-8941
GCVE (VulDB): GCVE-100-101251
OSVDB: - CVE-2017-8941 - Interval International - Interval International - Medium

See also: 🔍

Entryinfo

Created: 05/16/2017 03:59
Updated: 09/26/2020 21:04
Changes: 05/16/2017 03:59 (53), 09/26/2020 21:04 (8)
Complete: 🔍
Cache ID: 216::103

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

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