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Artikelnummer: 000180768

DSA-2020-281: Dell Wyse ThinOS 8.6 Security Update for Insecure Default Configuration Vulnerabilities.

Samenvatting: Dell Wyse ThinOS 8.6 MR8 contains remediations for insecure default configuration vulnerabilities that could be potentially exploited to access a writable file that can be used to manipulate the configuration of a specific thin client and potentially gain access to sensitive information leading to the compromise of thin clients. ...

Article content

Impact

Critical

Gegevens

Proprietary Code CVE(s) Description CVSS Base Score CVSS Vector String
CVE-2020-29491 Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to gain access to the sensitive information on the local network, leading to the potential compromise of impacted thin clients. 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVE-2020-29492 Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to access the writable file and manipulate the configuration of any target specific station. 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Proprietary Code CVE(s) Description CVSS Base Score CVSS Vector String
CVE-2020-29491 Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to gain access to the sensitive information on the local network, leading to the potential compromise of impacted thin clients. 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVE-2020-29492 Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to access the writable file and manipulate the configuration of any target specific station. 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Dell Technologies raadt aan dat alle klanten rekening houden met zowel de basisscore van CVSS als alle relevante tijdelijke en omgevingsscores die gevolgen kunnen hebben voor de mogelijke ernst van de specifieke beveiligingsproblemen.

Getroffen producten en herstel

The following is a list of impacted products and remediations. Customers should use the latest releases available which use secure default configurations.
 
Product Affected Version(s) Updated Version(s) Link to Update
Dell Wyse 3040 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 3040 Thin Client (ENG)
Dell Wyse 3040 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 3040 Thin Client (JPN)
Dell Wyse 3040 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 3040 Thin Client with PCoIP (ENG)
Dell Wyse 3040 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 3040 Thin Client with PCoIP (JPN)
Dell Wyse 5010 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5010 Thin Client (ENG)
Dell Wyse 5010 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5010 Thin Client (JPN)
Dell Wyse 5010 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5010 Thin Client with PCoIP (ENG)
Dell Wyse 5010 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5010 Thin Client with PCoIP (JPN)
Dell Wyse 5040 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5040 Thin Client (ENG)
Dell Wyse 5040 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5040 Thin Client (JPN)
Dell Wyse 5040 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5040 Thin Client with PCoIP (ENG)
Dell Wyse 5040 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5040 Thin Client with PCoIP (JPN)
Dell Wyse 5060 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5060 Thin Client (ENG)
Dell Wyse 5060 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5060 Thin Client (JPN)
Dell Wyse 5060 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5060 Thin Client with PCoIP (ENG)
Dell Wyse 5060 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5060 Thin Client with PCoIP (JPN)
Dell Wyse 5070 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5070 Thin Client (ENG)
Dell Wyse 5070 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5070 Thin Client (JPN)
Dell Wyse 5070 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5070 Thin Client with PCoIP (ENG)
Dell Wyse 5070 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5070 Thin Client with PCoIP (JPN)
Dell Wyse 5470 AIO Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client (ENG)
Dell Wyse 5470 AIO Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client (JPN)
Dell Wyse 5470 AIO Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client with PCoIP (ENG)
Dell Wyse 5470 AIO Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client with PCoIP (JPN)
Dell Wyse 5470 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5470 Thin Client (ENG)
Dell Wyse 5470 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5470 Thin Client (JPN)
Dell Wyse 5470 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5470 Thin Client with PCoIP (ENG)
Dell Wyse 5470 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 Thin Client with PCoIP (JPN)
Dell Wyse 7010 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 7010 Thin Client (ENG)
Dell Wyse 7010 thin client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 7010 thin client (JPN)
The following is a list of impacted products and remediations. Customers should use the latest releases available which use secure default configurations.
 
Product Affected Version(s) Updated Version(s) Link to Update
Dell Wyse 3040 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 3040 Thin Client (ENG)
Dell Wyse 3040 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 3040 Thin Client (JPN)
Dell Wyse 3040 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 3040 Thin Client with PCoIP (ENG)
Dell Wyse 3040 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 3040 Thin Client with PCoIP (JPN)
Dell Wyse 5010 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5010 Thin Client (ENG)
Dell Wyse 5010 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5010 Thin Client (JPN)
Dell Wyse 5010 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5010 Thin Client with PCoIP (ENG)
Dell Wyse 5010 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5010 Thin Client with PCoIP (JPN)
Dell Wyse 5040 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5040 Thin Client (ENG)
Dell Wyse 5040 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5040 Thin Client (JPN)
Dell Wyse 5040 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5040 Thin Client with PCoIP (ENG)
Dell Wyse 5040 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5040 Thin Client with PCoIP (JPN)
Dell Wyse 5060 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5060 Thin Client (ENG)
Dell Wyse 5060 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5060 Thin Client (JPN)
Dell Wyse 5060 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5060 Thin Client with PCoIP (ENG)
Dell Wyse 5060 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5060 Thin Client with PCoIP (JPN)
Dell Wyse 5070 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5070 Thin Client (ENG)
Dell Wyse 5070 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5070 Thin Client (JPN)
Dell Wyse 5070 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5070 Thin Client with PCoIP (ENG)
Dell Wyse 5070 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5070 Thin Client with PCoIP (JPN)
Dell Wyse 5470 AIO Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client (ENG)
Dell Wyse 5470 AIO Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client (JPN)
Dell Wyse 5470 AIO Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client with PCoIP (ENG)
Dell Wyse 5470 AIO Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 AIO Thin Client with PCoIP (JPN)
Dell Wyse 5470 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5470 Thin Client (ENG)
Dell Wyse 5470 Thin Client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5470 Thin Client (JPN)
Dell Wyse 5470 Thin Client with PCoIP (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 5470 Thin Client with PCoIP (ENG)
Dell Wyse 5470 Thin Client with PCoIP (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol
 		 8.6 MR8 Dell Wyse 5470 Thin Client with PCoIP (JPN)
Dell Wyse 7010 Thin Client (ENG) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 7010 Thin Client (ENG)
Dell Wyse 7010 thin client (JPN) Versions prior to 8.6 MR8 where the Client is receiving configurations from a remote file server over an insecure protocol 8.6 MR8 Dell Wyse 7010 thin client (JPN)

Tijdelijke oplossingen en beperkingen

Below are best practices to address this issue. Dell recommends customers implement one of the following:

  • Secure the file server environment when using Dell Wyse ThinOS 8.6 clients – Impacted ThinOS 8.6 customers can secure their environment by updating their file servers to use a secure protocol (HTTPS instead of HTTP or FTP) and by ensuring file servers are set to read-only access. 
  • Deploy Dell Wyse Management Suite – Impacted ThinOS 8.6 customers can use Wyse Management Suite instead of a file server for imaging and device configuration. Wyse Management Suite communications enforce HTTPS protocol and all configurations are stored in a secure server database instead of editable configuration files.
  • Deploy Dell Wyse Management Suite with ThinOS 9 – In addition to deploying Wyse Management Suite, customers with eligible Wyse clients can update their operating system to ThinOS 9 free of charge. ThinOS 9 clients do not support file server configuration, and thus this exploit does not apply to Wyse clients running ThinOS 9.   

Bevestigingen

Dell would like to thank Prof. Gil David and Elad Luz of CyberMDX for reporting this vulnerability.

Revisiegeschiedenis

RevisionDateDescription
1.02020-12-21Initial Release

Verwante informatie

Dell Security Advisories and Notices
Dell Vulnerability Response Policy
CVSS Scoring Guide

Juridische informatie

Artikeleigenschappen

Getroffen product

Wyse ThinOS

Datum laatst gepubliceerd

17 feb. 2021

Versie

2

Artikeltype

Dell Security Advisory

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