Security readout for executives and security teams
Plain-English summary
This is a low-severity information exposure issue in Dell EMC PowerScale OneFS. A logged-in user with specific console or SSH privileges could, under limited conditions, read a very small amount of kernel stack data. The issue matters most where broad administrative shell access exists on affected storage clusters.
Executive priority
Treat as low urgency unless affected clusters have many privileged users or weak administrative access control. Prioritize confirming versions and reducing unnecessary SSH or console privileges, then follow Dell guidance for remediation planning.
Technical view
The flaw is an uninitialized resource issue in Dell EMC PowerScale OneFS. Under certain conditions, an authenticated user with console or SSH login privilege can access up to 24 bytes of data from the /ifs kernel stack. CVSS 3.1 is 2.5: local attack vector, high complexity, low privileges, confidentiality impact only.
Likely exposure
PowerScale OneFS deployments running versions 8.2.x through 9.1.0.x. Exposure requires an authenticated user with ISI_PRIV_LOGIN_CONSOLE or ISI_PRIV_LOGIN_SSH privileges, so internet-facing presence alone is not enough evidence of exploitability.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Practical abuse appears constrained by required authentication, specific login privileges, local attack vector, and high attack complexity.
Researcher notes
Evidence supports only limited confidentiality impact: up to 24 bytes from the /ifs kernel stack. The provided sources do not include exploit details, proof of active exploitation, or fixed-version specifics. Avoid expanding scope beyond OneFS 8.2.x through 9.1.0.x.
Mitigation direction
- Review Dell advisory 000190408 for fixed versions and vendor-prescribed remediation.
- Inventory OneFS clusters and identify any 8.2.x through 9.1.0.x deployments.
- Restrict SSH and console login privileges to operationally necessary administrators.
- Monitor privileged OneFS login activity until vendor remediation is confirmed.
Validation and detection
- Confirm exact OneFS versions on all PowerScale clusters.
- Review accounts granted ISI_PRIV_LOGIN_CONSOLE or ISI_PRIV_LOGIN_SSH privileges.
- Check whether Dell advisory 000190408 identifies an applicable update for each cluster.
- Validate that privileged shell access is logged and reviewed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2021-36282 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 2.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N11.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
2.5LowVector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dell.com/support/kbdoc/000190408CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.