PT-2021-7427 · Dell · Dell Powerscale Onefs

Published 2021-02-08 · Updated 2022-07-12 · CVE-2021-21502

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Dell PowerScale OneFS versions 8.1.0 through 9.1.0

Description The issue is related to a flaw in the authentication procedure when using an account with an expired term. This could allow a remote attacker to gain unauthorized access to protected information. A user on the network with the ISI PRIV AUTH SSH RBAC privilege and an expired account may exploit this, giving them access to the same privileges they had before account expiration, potentially including high-privileged accounts.

Recommendations For Dell PowerScale OneFS versions 8.1.0 through 9.1.0, upgrade to a newer version at the earliest opportunity to resolve the issue. As a temporary workaround, consider restricting the ISI PRIV AUTH SSH RBAC privilege to minimize the risk of exploitation.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2022-06122

CVE-2021-21502

Affected Products

Dell Powerscale Onefs

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-21502 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21502 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06122 · Security Note
• https://dell.com/support/kbdoc/en-us/000182873/dsa-2021-009-dell-powerscale-onefs-security-update-for-multiple-vulnerabilities · Vendor Advisory
• https://dell.com/support/kbdoc/de-de/000182873/dsa-2021-009-dell-powerscale-onefs-security-update-for-multiple-vulnerabilities · Note
• https://t.me/cibsecurity/23333 · Telegram Post