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CVE-2021-21502

CRITICALCVSS 9.8/10EPSS 1.41%

Last modified

CVE-2021-21502 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.41% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.41%

69.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DellEmc Powerscale Onefs8.1.0
DellEmc Powerscale Onefs8.1.1
DellEmc Powerscale Onefs8.1.2
DellEmc Powerscale Onefs8.2.0
DellEmc Powerscale Onefs8.2.1
DellEmc Powerscale Onefs8.2.2
DellEmc Powerscale Onefs9.0.0
DellEmc Powerscale Onefs9.1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-21502?
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.
How severe is CVE-2021-21502?
CVE-2021-21502 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.
How do I fix CVE-2021-21502?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21502?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST