Vulnerability-Lookup

GHSA-WX8Q-RGFR-CF6V

Vulnerability from github – Published: 2021-11-10 18:20 – Updated: 2021-12-10 18:30

Summary

Insufficient Granularity of Access Control in github.com/google/exposure-notifications-verification-server

Details

Impact

Users or API keys with permission to expire verification codes could have expired codes that belonged to another realm if they guessed the UUID.

Patches

v1.1.2+

Workarounds

There are no workarounds, and there are no indications this has been exploited in the wild. Verification codes can only be expired by providing their 64-bit UUID, and verification codes are already valid for a very short period of time (thus the UUID rotates frequently).

For more information

Contact exposure-notifications-feedback@google.com

Severity

6.5 (Medium)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/google/exposure-notifications-verification-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-22565"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-11-09T21:03:07Z",
    "nvd_published_at": "2021-12-09T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nUsers or API keys with permission to expire verification codes could have expired codes that belonged to another realm if they guessed the UUID.\n\n### Patches\nv1.1.2+\n\n### Workarounds\nThere are no workarounds, and there are no indications this has been exploited in the wild. Verification codes can only be expired by providing their 64-bit UUID, and verification codes are already valid for a very short period of time (thus the UUID rotates frequently).\n\n### For more information\nContact exposure-notifications-feedback@google.com",
  "id": "GHSA-wx8q-rgfr-cf6v",
  "modified": "2021-12-10T18:30:24Z",
  "published": "2021-11-10T18:20:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/google/exposure-notifications-verification-server/security/advisories/GHSA-wx8q-rgfr-cf6v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22565"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/exposure-notifications-verification-server"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/exposure-notifications-verification-server/releases/tag/v1.1.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Insufficient Granularity of Access Control in github.com/google/exposure-notifications-verification-server"
}

CVE-2021-22565 (GCVE-0-2021-22565)

Vulnerability from cvelistv5 – Published: 2021-12-09 12:55 – Updated: 2024-09-16 17:53

Title

Insufficient Granularity of Access Control in GAEN Notification Server

Summary

An attacker could prematurely expire a verification code, making it unusable by the patient, making the patient unable to upload their TEKs to generate exposure notifications. We recommend upgrading the Exposure Notification server to V1.1.2 or greater.

Severity

6.5 (Medium)


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

CWE

CWE-284 - Improper Access Control

Assigner

Google Google root Scorecard

References

2 references

URL	Tags
https://github.com/google/exposure-notifications-…	x_refsource_MISC
https://github.com/google/exposure-notifications-…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Google LLC	Google Exposure-notifications-verification-server	Affected: unspecified , < 1.1.2 (custom)

Date Public

2021-11-09 00:00

Show details on NVD website

JSON

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            "url": "https://github.com/google/exposure-notifications-verification-server/releases/tag/v1.1.2"
          }
        ],
        "title": "CVE Program Container"
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      ],
      "metrics": [
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          "cvssV3_1": {
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            "baseSeverity": "MEDIUM",
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            "integrityImpact": "LOW",
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      "source": {
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      "title": "Insufficient Granularity of Access Control in GAEN Notification Server",
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      },
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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.

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.

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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.

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