Pulse Secure Desktop Client up to 9.1R8 Registry Privileges access control
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. |
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7.3 | $0-$5k | 0.00 |
A vulnerability has been found in Pulse Secure Desktop Client up to 9.1R8 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Registry Privileges Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
A vulnerability in the Pulse Secure Desktop Client < 9.1R9 is vulnerable to the client registry privilege escalation attack. This fix also requires Server Side Upgrade due to Standalone Host Checker Client (Windows) and Windows PDC.
The weakness was released 10/28/2020 as SA44601. It is possible to read the advisory at kb.pulsesecure.net. This vulnerability is known as CVE-2020-8239 since 01/28/2020. The exploitation appears to be easy. The attack can only be done within the local network. The successful exploitation needs a single authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.
Upgrading to version 9.1R9 eliminates this vulnerability.
Product
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv3
VulDB Meta Base Score: 7.6VulDB Meta Temp Score: 7.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔒
CVSSv2
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VulDB Base Score: 🔒
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VulDB Reliability: 🔍
NVD Base Score: 🔒
Exploiting
Class: Privilege escalationCWE: CWE-264
ATT&CK: T1068
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Threat: 🔍Adversaries: 🔍
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Predictions: 🔍
Remediation: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Desktop Client 9.1R9
Timeline
01/28/2020 CVE assigned10/28/2020 Advisory disclosed
10/28/2020 VulDB entry created
11/29/2020 VulDB last update
Sources
Advisory: SA44601Status: Confirmed
CVE: CVE-2020-8239 (🔒)
Entry
Created: 10/28/2020 07:21 PMUpdated: 11/29/2020 10:32 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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