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CVE Record

CVE-2021-33359: A vulnerability exists in gowitness < 2.3.6 that allows an unauthenticated attacker to perform an arbitrary...

A vulnerability exists in gowitness < 2.3.6 that allows an unauthenticated attacker to perform an arbitrary file read using the file:// scheme in the url parameter to get an image of any file.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

gowitness versions before 2.3.6 could let an unauthenticated person request a screenshot of a local file by using a file:// URL. If a vulnerable gowitness service is reachable by untrusted users, sensitive files readable by the gowitness process could be exposed as images.

Executive priority

Treat internet-facing or shared gowitness deployments as urgent because the issue can expose local files without authentication. Local-only, tightly restricted instances are lower priority but should still be updated.

Technical view

The CVE describes arbitrary file read in gowitness < 2.3.6 through the url parameter accepting the file:// scheme. The issue is unauthenticated and results in an image of a local file. No CVSS, CWE, or vendor-structured affected product data is provided in the bundle.

Likely exposure

Exposure is limited to deployments running gowitness before 2.3.6 where its URL screenshot functionality is accessible to untrusted users or networks. The bundle does not state whether gowitness is exposed by default.

Exploitation context

The CVE source says unauthenticated exploitation is possible through the url parameter. The bundle does not provide evidence of active exploitation, and KEV status is false. Public disclosure references exist, but exploit maturity is not established here.

Researcher notes

The source data is sparse: no CVSS vector, CWE, CPE, or detailed advisory text is included. Analysis relies on the CVE description and the 2.3.6 release reference. Do not infer affected forks, defaults, or broader product impact.

Mitigation direction

  • Inventory gowitness deployments and confirm their versions.
  • Upgrade gowitness to 2.3.6 or later where applicable.
  • Restrict gowitness access to trusted administrators and networks.
  • Check vendor release notes for any additional hardening guidance.
  • Review local files and secrets accessible to the gowitness process.

Validation and detection

  • Confirm no deployed gowitness version is below 2.3.6.
  • Verify public and untrusted networks cannot reach gowitness services.
  • Review application logs for suspicious file:// URL submissions.
  • Check host-level permissions for files readable by the gowitness process.
  • Confirm remediation with security testing that avoids exposing sensitive file contents.
Prepared
Confidence
medium
Sources
4

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.

description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-33359 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
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
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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