Vulnerability-Lookup

GSD-2023-27496

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script).

Aliases

CVE-2023-27496

Aliases

CVE-2023-27496

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-27496",
    "id": "GSD-2023-27496"
  },
  "gsd": {
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      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
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      "id": "GSD-2023-27496",
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}

CVE-2023-27496 (GCVE-0-2023-27496)

Vulnerability from cvelistv5 – Published: 2023-04-04 19:48 – Updated: 2025-02-10 21:34

Title

Envoy may crash when a redirect url without a state param is received in the oauth filter

Summary

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-10 21:34 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/envoyproxy/envoy/security/advi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
envoyproxy	envoy	Affected: >= 1.25.0, < 1.25.3 Affected: >= 1.24.0, < 1.24.4 Affected: >= 1.23.0, < 1.23.6 Affected: < 1.22.9

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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              "content": {
                "id": "CVE-2023-27496",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-10T21:34:11.044829Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.