Pulse Secure Desktop Client up to 9.1R8 Dynamic Certificate Trust path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Pulse Secure Desktop Client up to 9.1R8. It has been rated as critical. The impacted element is an unknown function of the component Dynamic Certificate Trust. This manipulation causes path traversal. This vulnerability is tracked as CVE-2020-8254. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Pulse Secure Desktop Client up to 9.1R8. Affected by this vulnerability is an unknown function of the component Dynamic Certificate Trust. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 10/28/2020 as SA44601. The advisory is shared at kb.pulsesecure.net. This vulnerability is known as CVE-2020-8254. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 9.1R9 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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

Class: Path traversal
CWE: CWE-23 / CWE-22
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Desktop Client 9.1R9

Timelineinfo

01/28/2020 🔍
10/28/2020 +274 days 🔍
10/28/2020 +0 days 🔍
11/29/2020 +32 days 🔍

Sourcesinfo

Advisory: SA44601
Status: Confirmed

CVE: CVE-2020-8254 (🔍)
GCVE (CVE): GCVE-0-2020-8254
GCVE (VulDB): GCVE-100-164017

Entryinfo

Created: 10/28/2020 19:37
Updated: 11/29/2020 23:28
Changes: 10/28/2020 19:37 (39), 11/29/2020 23:21 (2), 11/29/2020 23:28 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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