PureVPN Client up to 6.0.x on Windows login.conf Credentials credentials management

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 (≈)
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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.
5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in PureVPN Client up to 6.0.x on Windows. Impacted is an unknown function of the file PROGRAMDATA%\purevpn\config\login.conf. The manipulation leads to credentials management (Credentials). This vulnerability is traded as CVE-2018-18656. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in PureVPN Client up to 6.0.x on Windows. It has been rated as problematic. This issue affects some unknown processing of the file PROGRAMDATA%\purevpn\config\login.conf. The manipulation with an unknown input leads to a credentials management vulnerability (Credentials). Using CWE to declare the problem leads to CWE-255. Impacted is confidentiality. The summary by CVE is:

The PureVPN client before 6.1.0 for Windows stores Login Credentials (username and password) in cleartext. The location of such files is %PROGRAMDATA%\purevpn\config\login.conf. Additionally, all local users can read this file.

The bug was discovered 09/27/2018. The weakness was shared 10/26/2018 (Website). It is possible to read the advisory at trustwave.com. The identification of this vulnerability is CVE-2018-18656 since 10/26/2018. Attacking locally is a requirement. Required for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.1.0 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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

Name: Credentials
Class: Credentials management / Credentials
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Client 6.1.0

Timelineinfo

09/27/2018 🔍
10/26/2018 +28 days 🔍
10/26/2018 +0 days 🔍
10/26/2018 +0 days 🔍
10/27/2018 +1 days 🔍
04/06/2020 +527 days 🔍

Sourcesinfo

Advisory: trustwave.com
Status: Not defined

CVE: CVE-2018-18656 (🔍)
GCVE (CVE): GCVE-0-2018-18656
GCVE (VulDB): GCVE-100-125999

Entryinfo

Created: 10/27/2018 18:15
Updated: 04/06/2020 20:40
Changes: 10/27/2018 18:15 (61), 04/06/2020 20:40 (1)
Complete: 🔍
Cache ID: 216::103

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