VMware Horizon Server up to 7.10.2/7.12.x Scripting cross site scripting

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CVSS Meta Temp Score
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4.0$0-$5k0.00

A vulnerability classified as problematic has been found in VMware Horizon Server up to 7.10.2/7.12.x. This affects an unknown code of the component Scripting Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. This is going to have an impact on integrity. An attacker might be able to inject arbitrary html and script code into the web site. This would alter the appearance and would make it possible to initiate further attacks against site visitors. The summary by CVE is:

VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0) contains a Cross Site Scripting (XSS) vulnerability. Successful exploitation of this issue may allow an attacker to inject malicious script which will be executed.

The weakness was shared 10/23/2020. The advisory is shared at vmware.com. This vulnerability is uniquely identified as CVE-2020-3997 since 12/30/2019. The attack needs to be initiated within the local network. A authentication is needed for exploitation. 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 T1059.007 for this issue.

Upgrading to version 7.10.3 or 7.13.0 eliminates this vulnerability.

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VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 3.0
VulDB Temp Score: 2.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Cross site scripting
CWE: CWE-79
ATT&CK: T1059.007

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Horizon Server 7.10.3/7.13.0

Timelineinfoedit

12/30/2019 CVE assigned
10/23/2020 +297 days Advisory disclosed
10/23/2020 +0 days VulDB entry created
11/27/2020 +35 days VulDB last update

Sourcesinfoedit

Vendor: https://www.vmware.com/

Advisory: vmware.com
Status: Confirmed

CVE: CVE-2020-3997 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfoedit

Created: 10/23/2020 08:54 PM
Updated: 11/27/2020 02:01 AM
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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