LiveActive security incident?Get immediate response
CVE Record

CVE-2021-27285: An issue was discovered in Inspur ClusterEngine v4.0 that allows attackers to gain escalated Local privileg...

An issue was discovered in Inspur ClusterEngine v4.0 that allows attackers to gain escalated Local privileges and execute arbitrary commands via /opt/tsce4/torque6/bin/getJobsByShell.

HighCVSS 8.4Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Inspur ClusterEngine v4.0 has a local privilege-escalation issue. A person or process with local access could use the named ClusterEngine helper path to run commands with higher privileges. This could affect confidentiality, integrity, and availability on cluster systems.

Executive priority

Treat as high priority only where Inspur ClusterEngine v4.0 is present. The impact is severe after local access, but the bundle does not show remote exploitation or confirmed active exploitation.

Technical view

CVE-2021-27285 is reported in Inspur ClusterEngine v4.0 and references /opt/tsce4/torque6/bin/getJobsByShell. The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, scoring 8.4. CWE-276 indicates incorrect default permissions. Affected-product metadata is incomplete beyond the description.

Likely exposure

Exposure is most likely on systems running Inspur ClusterEngine v4.0, especially cluster or HPC hosts where local users, jobs, or processes can reach the affected helper path. This is not described as a remote network attack.

Exploitation context

The CVE source describes local privilege escalation and arbitrary command execution. CISA KEV status is false in the bundle, and no cited source here confirms active exploitation in the wild.

Researcher notes

Evidence is limited. The CVE record names ClusterEngine v4.0 and the affected path, but structured affected-product data is listed as n/a and no patch is identified. Validate locally and track vendor or maintainer guidance before asserting remediation completeness.

Mitigation direction

  • Inventory systems for Inspur ClusterEngine v4.0 installations.
  • Check vendor guidance for patches, configuration changes, or supported upgrade paths.
  • Restrict local shell and job-submission access to trusted users only.
  • Review permissions on ClusterEngine helper binaries for inappropriate defaults.
  • Monitor affected hosts for suspicious local privilege changes.

Validation and detection

  • Confirm whether ClusterEngine v4.0 is installed on production or research cluster nodes.
  • Verify whether the referenced helper path exists on those systems.
  • Review file ownership and permissions against vendor-supported expectations.
  • Check local audit and job logs for unusual execution around the helper path.
  • Document compensating controls if no vendor fix is available.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-276: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-27285 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.4 (3.1)
Known Exploited
No
Published

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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.4CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.4High
CVSS 3.1 vector shape for CVE-2021-27285Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-276

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.