Pulse Secure Client up to 5.3R4 on Windows SSL Certificate improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Pulse Secure Client up to 5.3R4 on Windows. This vulnerability affects unknown code of the component SSL Certificate. The manipulation results in improper authentication. This vulnerability is cataloged as CVE-2018-7572. An attack on the physical device is feasible. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Pulse Secure Client up to 5.3R4 on Windows. Affected is an unknown function of the component SSL Certificate. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Pulse Secure Client 9.0R1 and 5.3RX before 5.3R5, when configured to authenticate VPN users during Windows Logon, can allow attackers to bypass Windows authentication and execute commands on the system with the privileges of Pulse Secure Client. The attacker must interrupt the client's network connectivity, and trigger a connection to a crafted proxy server with an invalid SSL certificate that allows certification-manager access, leading to the ability to browse local files and execute local programs.

The bug was discovered 09/07/2018. The weakness was shared 09/12/2018 (Website). The advisory is shared for download at mdsec.co.uk. This vulnerability is traded as CVE-2018-7572 since 02/27/2018. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

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

Upgrading to version 5.3R5 or 9.0R1 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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 5.3R5/9.0R1

Timelineinfo

02/27/2018 🔍
09/07/2018 +191 days 🔍
09/12/2018 +4 days 🔍
09/12/2018 +0 days 🔍
09/13/2018 +1 days 🔍
03/23/2020 +557 days 🔍

Sourcesinfo

Advisory: mdsec.co.uk
Status: Not defined

CVE: CVE-2018-7572 (🔍)
GCVE (CVE): GCVE-0-2018-7572
GCVE (VulDB): GCVE-100-123984

Entryinfo

Created: 09/13/2018 08:37
Updated: 03/23/2020 13:23
Changes: 09/13/2018 08:37 (60), 03/23/2020 13:23 (1)
Complete: 🔍
Cache ID: 216::103

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