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CVE Record

CVE-2021-27762: HCL BigFix Platform is affected by misconfigured security-related HTTP headers

Misconfigured security-related HTTP headers: Several security-related headers were missing or mis-configured on the web responses

MediumCVSS 4.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-27762 is a medium-severity weakness in HCL BigFix Platform where web responses had missing or misconfigured security-related HTTP headers. The reported impact is limited integrity risk, but BigFix is operationally sensitive, so exposed administrative interfaces deserve prompt review.

Executive priority

Treat this as a moderate-priority hygiene and hardening issue. It is not documented as actively exploited in the provided sources, but BigFix often supports endpoint management operations, so unresolved exposure may increase browser-based integrity risk around sensitive administration workflows.

Technical view

Affected HCL BigFix Platform versions are 9.5 through 9.5.18 and 10 through 10.0.5. CVSS 3.1 is 4.7 with network attack vector, low complexity, no privileges required, user interaction required, changed scope, low integrity impact, and no confidentiality or availability impact.

Likely exposure

Organizations running affected BigFix Platform web components are the likely exposure group, especially where consoles or web interfaces are reachable by untrusted users. The source bundle does not identify affected CPEs, specific endpoints, or internet-exposure prevalence.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. The CVSS vector indicates exploitation requires user interaction and produces limited integrity impact. No exploit details are provided in the cited sources.

Researcher notes

Evidence is limited to the CVE record, CVE List data, and an HCL support advisory link. The bundle does not name specific missing headers, fixed releases, CWE mapping, exploitability proof, or detection signatures. Avoid assuming more than the CVSS vector and affected version range state.

Mitigation direction

  • Identify all HCL BigFix Platform instances and versions.
  • Review HCL advisory KB0098116 for vendor-approved remediation.
  • Upgrade or reconfigure only according to HCL guidance.
  • Restrict administrative web access to trusted networks where feasible.
  • Monitor vendor updates for corrected version or configuration details.

Validation and detection

  • Confirm whether each instance runs versions 9.5-9.5.18 or 10-10.0.5.
  • Inspect BigFix web responses for security header presence and configuration.
  • Compare observed headers against HCL advisory guidance.
  • Retest after remediation to confirm headers are corrected.
  • Document remaining exposed instances and compensating controls.
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

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CVE-2021-27762 mapping review

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

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.7 (3.1)
Known Exploited
No
Published

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

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
4.7CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.7Medium
CVSS 3.1 vector shape for CVE-2021-27762Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
HCL SoftwareBigFix Platform9.5 - 9.5.18, 10 - 10.0.5Listed
Weakness

CWE details

No CWE listed

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