Netskope Client up to 100 on Windows NSClient Service permissions

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Netskope Client up to 100 on Windows. Impacted is an unknown function of the component NSClient Service. The manipulation leads to permissions. This vulnerability is referenced as CVE-2023-4996. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in Netskope Client up to 100 on Windows and classified as critical. This issue affects an unknown code of the component NSClient Service. The manipulation with an unknown input leads to a permissions vulnerability. Using CWE to declare the problem leads to CWE-281. The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Netskope was made aware of a security vulnerability in its NSClient product for version 100 & prior where a malicious non-admin user can disable the Netskope client by using a specially-crafted package. The root cause of the problem was a user control code when called by a Windows ServiceController did not validate the permissions associated with the user before executing the user control code. This user control code had permissions to terminate the NSClient service. 

The weakness was published 11/06/2023 by Alexander Katziv as nskpsa-2023-003. It is possible to read the advisory at netskope.com. The identification of this vulnerability is CVE-2023-4996 since 09/15/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 6.6
CNA Vector (Netskope): 🔍

CVSSv2info

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

Exploitinginfo

Class: Permissions
CWE: CWE-281 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/15/2023 🔍
11/06/2023 +52 days 🔍
11/06/2023 +0 days 🔍
12/02/2023 +26 days 🔍

Sourcesinfo

Advisory: nskpsa-2023-003
Researcher: Alexander Katziv
Status: Confirmed

CVE: CVE-2023-4996 (🔍)
GCVE (CVE): GCVE-0-2023-4996
GCVE (VulDB): GCVE-100-244535

Entryinfo

Created: 11/06/2023 12:28
Updated: 12/02/2023 11:46
Changes: 11/06/2023 12:28 (51), 12/02/2023 11:46 (11)
Complete: 🔍
Cache ID: 216::103

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