TI-2021-04595 Aliases CVE-2021-21502 GHSA-pw6f-fxqf-2vxp

Improper authentication in Dell PowerScale OneFS

MEDIUM 45CWE-287Published 2021-02-09 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Dell PowerScale OneFS versions 8.1.0 – 9.1.0 contain a "use of SSH key past account expiration" vulnerability. A user on the network with the ISI_PRIV_AUTH_SSH RBAC privilege that has an expired account may potentially exploit this vulnerability, giving them access to the same things they had before account expiration. This may by a high privileged account and hence Dell recommends customers upgrade at the earliest opportunity.

Why it matters now

EPSS 0.01429 73rd percentileScored 2026-11-07

Fix Fixed PowerScale OneFS (Dell): 8.1.2 / 8.2.2 / 9.1.0.x / Empire / Main

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Dell	PowerScale OneFS	before 8.1.2 / 8.2.2 / 9.1.0.x / Empire / Main	8.1.2 / 8.2.2 / 9.1.0.x / Empire / Main	Patch available	CNA

PowerScale OneFS VendorDell Affected before 8.1.2 / 8.2.2 / 9.1.0.x / Empire / Main Fixed in 8.1.2 / 8.2.2 / 9.1.0.x / Empire / Main Patch available CNA

CPE configurations NVD · 8

CPE	Versions	Role	Vendor
cpe:2.3:o:dell:emc_powerscale_onefs:8.1.0:::::::*	8.1.0	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.1.1:::::::*	8.1.1	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.1.2:::::::*	8.1.2	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.2.0:::::::*	8.2.0	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.2.1:::::::*	8.2.1	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.2.2:::::::*	8.2.2	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:9.0.0:::::::*	9.0.0	Vulnerable	Dell
cpe:2.3:o:dell:emc_powerscale_onefs:9.1.0:::::::*	9.1.0	Vulnerable	Dell

cpe:2.3:o:dell:emc_powerscale_onefs:8.1.0:*:*:*:*:*:*:* Versions 8.1.0 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.1.1:*:*:*:*:*:*:* Versions 8.1.1 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.1.2:*:*:*:*:*:*:* Versions 8.1.2 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.2.0:*:*:*:*:*:*:* Versions 8.2.0 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.2.1:*:*:*:*:*:*:* Versions 8.2.1 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:8.2.2:*:*:*:*:*:*:* Versions 8.2.2 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:9.0.0:*:*:*:*:*:*:* Versions 9.0.0 Vulnerable ·Dell
cpe:2.3:o:dell:emc_powerscale_onefs:9.1.0:*:*:*:*:*:*:* Versions 9.1.0 Vulnerable ·Dell

Remediation

Fix · CNA PowerScale OneFS (Dell) Fixed in 8.1.2 / 8.2.2 / 9.1.0.x / Empire / Main

Timeline

2026-10-02 Threatist record created from CVE-2021-21502
2026-10-03 Alias added: GHSA-pw6f-fxqf-2vxp

References

Advisory 1

https://www.dell.com/support/kbdoc/en-us/000182873/dsa-2021-009-dell-powerscale-onefs-security-update-for-multiple-vulnerabilities

TI-2022-22190 Improper privilege management in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
TI-2022-10097 Dell PowerScale OneFS, versions 8.2.x-9.3.x, contain a predictable seed in pseudo-random… CVSS 3.1CRITICAL 9.8
TI-2022-06835 Missing brute-force protection in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
TI-2022-22189 Improper certificate validation in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
TI-2022-15270 Insufficiently protected credentials in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
TI-2022-10098 Broken or risky cryptographic algorithm in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8

See all 83 →

Sources

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