CVE-2020-26195 Denial of service in PowerScale OneFS

What is CVE-2020-26195?

CVE-2020-26195 is a medium-severity denial of service vulnerability in Dell Emc Powerscale Onefs, published on 9 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Dell EMC PowerScale OneFS versions 8.1.2 – 9.1.0 contain an issue where the OneFS SMB directory auto-create may erroneously create a directory for a user. A remote unauthenticated attacker may take advantage of this issue to slow down the system.

Weakness: CWE-755, CWE-280

Which versions are affected by CVE-2020-26195?

It affects 1 product.

Products include Dell Emc Powerscale Onefs.

How do I fix CVE-2020-26195?

No fix has been published for CVE-2020-26195 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-26195 being exploited?

There is no known exploitation of CVE-2020-26195 in the wild and no public exploit code.

Other vulnerabilities in Dell Emc Powerscale Onefs

• CVE-2021-21502 Auth bypass in PowerScale OneFS Critical 9.8
• CVE-2022-26851 Information disclosure in PowerScale OneFS Critical 9.1
• CVE-2021-21506 Privilege escalation in PowerScale OneFS High 8.8
• CVE-2023-22575 Information disclosure in PowerScale OneFS High 8.7
• CVE-2021-21594 Information disclosure in PowerScale OneFS High 8.2

All Dell Emc Powerscale Onefs vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-55h2-p95w-q7pv.