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Article Number: 000190408

DSA-2021-142: Dell PowerScale OneFS Security Update for Multiple Vulnerabilities

Summary: Dell PowerScale OneFS remediation is available for multiple security vulnerabilities that may potentially be exploited by malicious users to compromise the affected system.

Article Content

Impact

Critical

Details

Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2021-21568 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x contain an insufficient logging vulnerability. An authenticated user with ISI_PRIV_LOGIN_PAPI may make un-audited and un-trackable configuration changes to settings that their roles have privileges to change. 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L 
CVE-2021-21592 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x improperly handle an exceptional condition. A remote low privileged user may potentially exploit this vulnerability, leading to unauthorized information disclosure. 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2021-21594 Dell PowerScale OneFS versions 8.2.2 - 9.1.0.x contain a use of get request method with sensitive query strings vulnerability. It may lead to potential disclosure of sensitive data. Dell recommends upgrading at your earliest opportunity. 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVE-2021-21595 Dell EMC PowerScale OneFS versions 8.2.x - 9.1.1.x contain an improper neutralization of special elements used in an OS command. This vulnerability may allow the compadmin user to elevate privileges. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update or upgrade at the earliest opportunity. 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CVE-2021-21599 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.1.x contain an OS command injection vulnerability. This may allow a user with ISI_PRIV_LOGIN_SSH or ISI_PRIV_LOGIN_CONSOLE to escalate privileges and escape the compliance guarantees. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update or upgrade at the earliest opportunity. 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CVE-2021-36278 Dell EMC PowerScale OneFS versions 8.2.x, 9.1.0.x, and 9.1.1.1 contain a sensitive information exposure vulnerability in log files. A local malicious user with ISI_PRIV_LOGIN_SSH, ISI_PRIV_LOGIN_CONSOLE, or ISI_PRIV_SYS_SUPPORT privileges may exploit this vulnerability to access sensitive information. If any third-party consumes those logs, the same sensitive information is available to those systems as well. Dell recommends to update or upgrade at the earliest opportunity. 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-36279 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x contain an incorrect permission assignment for critical resource vulnerability. This may allow a user with ISI_PRIV_LOGIN_SSH or ISI_PRIV_LOGIN_CONSOLE to access privileged information about the cluster. 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE-2021-36281 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x contain an incorrect permission assignment vulnerability. A low privileged authenticated user may potentially exploit this vulnerability to escalate privileges. 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-36282 Dell EMC PowerScale OneFS versions 8.2.x - 9.1.0.x contain a use of uninitialized resource vulnerability. This may potentially allow an authenticated user with ISI_PRIV_LOGIN_CONSOLE or ISI_PRIV_LOGIN_SSH privileges to gain access up to 24 bytes of data within the /ifs kernel stack under certain conditions.  2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2021-21568 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x contain an insufficient logging vulnerability. An authenticated user with ISI_PRIV_LOGIN_PAPI may make un-audited and un-trackable configuration changes to settings that their roles have privileges to change. 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L 
CVE-2021-21592 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x improperly handle an exceptional condition. A remote low privileged user may potentially exploit this vulnerability, leading to unauthorized information disclosure. 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2021-21594 Dell PowerScale OneFS versions 8.2.2 - 9.1.0.x contain a use of get request method with sensitive query strings vulnerability. It may lead to potential disclosure of sensitive data. Dell recommends upgrading at your earliest opportunity. 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVE-2021-21595 Dell EMC PowerScale OneFS versions 8.2.x - 9.1.1.x contain an improper neutralization of special elements used in an OS command. This vulnerability may allow the compadmin user to elevate privileges. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update or upgrade at the earliest opportunity. 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CVE-2021-21599 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.1.x contain an OS command injection vulnerability. This may allow a user with ISI_PRIV_LOGIN_SSH or ISI_PRIV_LOGIN_CONSOLE to escalate privileges and escape the compliance guarantees. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update or upgrade at the earliest opportunity. 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CVE-2021-36278 Dell EMC PowerScale OneFS versions 8.2.x, 9.1.0.x, and 9.1.1.1 contain a sensitive information exposure vulnerability in log files. A local malicious user with ISI_PRIV_LOGIN_SSH, ISI_PRIV_LOGIN_CONSOLE, or ISI_PRIV_SYS_SUPPORT privileges may exploit this vulnerability to access sensitive information. If any third-party consumes those logs, the same sensitive information is available to those systems as well. Dell recommends to update or upgrade at the earliest opportunity. 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-36279 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x contain an incorrect permission assignment for critical resource vulnerability. This may allow a user with ISI_PRIV_LOGIN_SSH or ISI_PRIV_LOGIN_CONSOLE to access privileged information about the cluster. 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE-2021-36281 Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x contain an incorrect permission assignment vulnerability. A low privileged authenticated user may potentially exploit this vulnerability to escalate privileges. 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-36282 Dell EMC PowerScale OneFS versions 8.2.x - 9.1.0.x contain a use of uninitialized resource vulnerability. This may potentially allow an authenticated user with ISI_PRIV_LOGIN_CONSOLE or ISI_PRIV_LOGIN_SSH privileges to gain access up to 24 bytes of data within the /ifs kernel stack under certain conditions.  2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.

Affected Products and Remediation

CVEs Addressed Affected Versions Updated Versions Link to Update
CVE-2021-21568 9.0.0.x and 9.2.0 Upgrade your version of OneFS








PowerScale Download Area

Additional Guidance: In addition to upgrading your version of OneFS or downloading and installing the latest RUP, Dell recommends changing the root password for PowerScale. If the root account is used by clients (for example, backup software, scripting), the clients must be updated with the new password. If the root password for PowerScale was used as a password elsewhere, Dell recommends changing these passwords and does not recommend using the same password on multiple accounts and programs.
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-21592 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-21594 9.0.0.x Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVE-2021-21595 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-21599 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x  Download and install the latest RUP
CVE-2021-36278 8.2.x, 9.0.0.x, and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVE-2021-36279 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVE-2021-36281 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-36282 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVEs Addressed Affected Versions Updated Versions Link to Update
CVE-2021-21568 9.0.0.x and 9.2.0 Upgrade your version of OneFS








PowerScale Download Area

Additional Guidance: In addition to upgrading your version of OneFS or downloading and installing the latest RUP, Dell recommends changing the root password for PowerScale. If the root account is used by clients (for example, backup software, scripting), the clients must be updated with the new password. If the root password for PowerScale was used as a password elsewhere, Dell recommends changing these passwords and does not recommend using the same password on multiple accounts and programs.
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-21592 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-21594 9.0.0.x Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVE-2021-21595 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-21599 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x  Download and install the latest RUP
CVE-2021-36278 8.2.x, 9.0.0.x, and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVE-2021-36279 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP
CVE-2021-36281 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2, 9.1.0.x, and 9.2.1.x Download and install the latest RUP
CVE-2021-36282 9.0.0.x and 9.2.0 Upgrade your version of OneFS
8.2.2 and 9.1.0.x Download and install the latest RUP

Workarounds and Mitigations

In addition to applying the Workaround and Mitigations below, Dell recommends changing the root password for PowerScale. If the root account is used by clients (for example, backup software, scripting), the clients must be updated with the new password. If the root password for PowerScale was used as a password elsewhere, Dell recommends changing these passwords and does not recommend using the same password on multiple accounts and programs. 
 

Workarounds or mitigations
CVE-2021-21568 Disallow ISI_PRIV_LOGIN_PAPI privileges to non-administrative users.
CVE-2021-21592 None
CVE-2021-21594 None
CVE-2021-21595 This only applies to clusters running in WORM Smartlock Compliance mode.
CVE-2021-21599 This only applies to clusters running in WORM Smartlock Compliance mode.
CVE-2021-36278 Disallow ISI_PRIV_LOGIN_CONSOLE and ISI_PRIV_LOGIN_SSH privileges to non-administrative users.
CVE-2021-36279 Disallow ISI_PRIV_LOGIN_CONSOLE and ISI_PRIV_LOGIN_SSH privileges to non-administrative users.
OR
As root for clusters not in Smartlock WORM Compliance Mode the following remediates the issue
  1. mkdir -p -m 750 /ifs/data/Isilon_Support/ /ifs/data/Isilon_Support/pkg/
  2. chmod o-rwx /ifs/data/Isilon_Support/ /ifs/data/Isilon_Support/pkg/
CVE-2021-36281
  • Do not have multiple LDAP records with the same LDAP UID (username)
  • Or do not allow LDAP users to set their own LDAP UID (username)
  • Or disable the usage of any LDAP authentication providers
CVE-2021-36282 Disallow ISI_PRIV_LOGIN_CONSOLE and ISI_PRIV_LOGIN_SSH privileges to non-administrative users.

Revision History

RevisionDateDescription
1.02021-08-10Initial Release
2.02021-08-26 CVE-2021-36280 due to partial fix, complete fix is in the next DSA-2021-158
2.12022-03-11Updated CVE-2021-36278 description for clarity.
3.02022-04-13Updated CVE-2021-36278 score and provided additional remediation guidance.

Related Information

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

Legal Information

Article Properties

Affected Product

PowerScale OneFS, Product Security Information

Last Published Date

13 Apr 2022

Version

5

Article Type

Dell Security Advisory

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