Vulnerability-Lookup

GHSA-3GG9-F3VH-866F

Vulnerability from github – Published: 2022-02-10 22:39 – Updated: 2021-05-10 21:16

Summary

Improper Certificate Validation in Graylog

Details

Graylog before 3.3.3 lacks SSL Certificate Validation for LDAP servers. It allows use of an external user/group database stored in LDAP. The connection configuration allows the usage of unencrypted, SSL- or TLS-secured connections. Unfortunately, the Graylog client code (in all versions that support LDAP) does not implement proper certificate validation (regardless of whether the "Allow self-signed certificates" option is used). Therefore, any attacker with the ability to intercept network traffic between a Graylog server and an LDAP server is able to redirect traffic to a different LDAP server (unnoticed by the Graylog server due to the lack of certificate validation), effectively bypassing Graylog's authentication mechanism.

Severity

8.1 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.graylog:graylog-parent"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-15813"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-10T21:16:56Z",
    "nvd_published_at": "2020-07-17T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "Graylog before 3.3.3 lacks SSL Certificate Validation for LDAP servers. It allows use of an external user/group database stored in LDAP. The connection configuration allows the usage of unencrypted, SSL- or TLS-secured connections. Unfortunately, the Graylog client code (in all versions that support LDAP) does not implement proper certificate validation (regardless of whether the \"Allow self-signed certificates\" option is used). Therefore, any attacker with the ability to intercept network traffic between a Graylog server and an LDAP server is able to redirect traffic to a different LDAP server (unnoticed by the Graylog server due to the lack of certificate validation), effectively bypassing Graylog\u0027s authentication mechanism.",
  "id": "GHSA-3gg9-f3vh-866f",
  "modified": "2021-05-10T21:16:56Z",
  "published": "2022-02-10T22:39:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15813"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Graylog2/graylog2-server/issues/5906"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Graylog2/graylog2-server/pull/8569"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Certificate Validation in Graylog"
}

CVE-2020-15813 (GCVE-0-2020-15813)

Vulnerability from cvelistv5 – Published: 2020-07-17 18:05 – Updated: 2024-08-04 13:30

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/Graylog2/graylog2-server/issues/5906	x_refsource_MISC

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JSON

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            ],
            "url": "https://github.com/Graylog2/graylog2-server/issues/5906"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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          "vendor": "n/a",
          "versions": [
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      ],
      "descriptions": [
        {
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        }
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      "problemTypes": [
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              "lang": "en",
              "type": "text"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-07-17T18:05:06.000Z",
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        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Graylog2/graylog2-server/issues/5906"
        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-15813",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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GHSA-3GG9-F3VH-866F

CVE-2020-15813 (GCVE-0-2020-15813)

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