VDB-107618 · CVE-2015-7778 · BID 77637

Gurunavi App up to 5.x 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
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.
5.5$0-$5k0.00

A vulnerability was found in Gurunavi App up to 5.x on iOS (iOS App Software) and classified as problematic. 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:

Gurunavi App for iOS before 6.0.0 does not verify SSL certificates which could allow remote attackers to perform man-in-the-middle attacks.

The bug was discovered 11/17/2015. The weakness was presented 10/10/2017 by Aoki Keiichi (Website). The advisory is available at jvn.jp. This vulnerability is handled as CVE-2015-7778 since 10/09/2015. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 693 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.0.0 eliminates this vulnerability.

Productinfo

Type

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: Gurunavi App 6.0.0

Timelineinfo

10/09/2015 🔍
11/17/2015 +39 days 🔍
11/17/2015 +0 days 🔍
10/10/2017 +693 days 🔍
10/10/2017 +0 days 🔍
10/11/2017 +1 days 🔍
11/23/2019 +773 days 🔍

Sourcesinfo

Advisory: jvn.jp
Researcher: Aoki Keiichi
Status: Not defined

CVE: CVE-2015-7778 (🔍)
SecurityFocus: 77637 - Gurunavi App for iOS CVE-2015-7778 SSL Certificate Validation Security Bypass Vulnerability

Entryinfo

Created: 10/11/2017 10:11
Updated: 11/23/2019 08:56
Changes: 10/11/2017 10:11 (65), 11/23/2019 08:56 (1)
Complete: 🔍

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