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CVE-2021-36668: URL injection in Driva inSync 6.9.0 for MacOS, allows attackers to force a visit to an arbitrary url via th...

URL injection in Driva inSync 6.9.0 for MacOS, allows attackers to force a visit to an arbitrary url via the port parameter to the Electron App.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-36668 is a URL injection issue reported in Druva inSync for macOS. An attacker could cause the Electron-based client to open an arbitrary URL through a port parameter. The business risk is mainly unwanted navigation to attacker-controlled content, with broader impact dependent on client configuration and user context.

Executive priority

Handle as a moderate endpoint hygiene issue unless Druva guidance or local evidence shows broader impact. Prioritize inventory and vendor-guided updates, especially where Druva inSync is widely deployed on macOS laptops.

Technical view

The CVE describes URL injection in Druva inSync 6.9.0 for macOS via the Electron App port parameter. The source bundle does not provide CVSS, CWE, confirmed CPEs, exploit maturity, or detailed remediation text. A Druva advisory for inSync Client 7.0.1 and before is referenced but not quoted in the bundle.

Likely exposure

Exposure is most likely on macOS endpoints running Druva inSync versions covered by the CVE description or Druva advisory. The bundle specifically names 6.9.0 for macOS and references inSync Client 7.0.1 and before, but affected-version evidence is incomplete.

Exploitation context

The CVE says attackers can force a visit to an arbitrary URL. The bundle does not state active exploitation, and KEV status is false. No exploit steps, preconditions, privileges, or public weaponization details are established by the provided evidence.

Researcher notes

The public bundle is sparse: no CVSS vector, CWE, CPE, exploit status, or detailed patch statement is included. Analysis should stay anchored to arbitrary URL opening through the Electron App port parameter and avoid expanding impact beyond cited evidence.

Mitigation direction

  • Inventory macOS endpoints running Druva inSync Client.
  • Review the Druva advisory for affected versions and vendor remediation guidance.
  • Prioritize updating clients if Druva identifies a fixed release.
  • Monitor for unexpected browser launches or URL opens associated with inSync.
  • Treat unknown or legacy inSync builds as needing vendor confirmation.

Validation and detection

  • Confirm installed Druva inSync Client versions on macOS endpoints.
  • Compare discovered versions against the Druva advisory and CVE record.
  • Check endpoint telemetry for suspicious URL launches involving inSync.
  • Verify remediation by confirming updated client versions after maintenance.
  • Document any unsupported versions for risk acceptance or removal.
Prepared
Confidence
medium
Sources
4

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

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
1ADP providers
3Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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