Vulnerability-Lookup

GSD-2020-15813

Vulnerability from gsd - Updated: 2023-12-13 01:21

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.

Aliases

CVE-2020-15813

Aliases

CVE-2020-15813

JSON

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{
  "GSD": {
    "alias": "CVE-2020-15813",
    "description": "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": "GSD-2020-15813"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      ],
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      "id": "GSD-2020-15813",
      "modified": "2023-12-13T01:21:44.056947Z",
      "schema_version": "1.4.0"
    }
  },
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      "advisories": [
        {
          "affected_range": "(,3.3.3)",
          "affected_versions": "All versions before 3.3.3",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
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          ],
          "date": "2022-02-10",
          "description": "Graylog 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.",
          "fixed_versions": [
            "3.3.3"
          ],
          "identifier": "CVE-2020-15813",
          "identifiers": [
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            "CVE-2020-15813"
          ],
          "not_impacted": "All versions starting from 3.3.3",
          "package_slug": "maven/org.graylog/graylog-parent",
          "pubdate": "2022-02-10",
          "solution": "Upgrade to version 3.3.3 or above.",
          "title": "Improper Certificate Validation",
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            "https://github.com/Graylog2/graylog2-server/issues/5906",
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        },
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          "cwe_ids": [
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            "CWE-295",
            "CWE-937"
          ],
          "date": "2020-07-22",
          "description": "Graylog 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.",
          "fixed_versions": [],
          "identifier": "CVE-2020-15813",
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            "CVE-2020-15813"
          ],
          "not_impacted": "",
          "package_slug": "maven/org.graylog2/graylog2-server",
          "pubdate": "2020-07-17",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-15813"
          ],
          "uuid": "7d3147eb-2452-4cf0-95d3-4181e042bd18"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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            "children": [],
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                "cpe23Uri": "cpe:2.3:a:graylog:graylog:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.3.3",
                "vulnerable": true
              }
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            }
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
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          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2020-07-22T15:03Z",
      "publishedDate": "2020-07-17T19:15Z"
    }
  }
}

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

Show details on NVD website

JSON

To clipboard

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              "x_transferred"
            ],
            "url": "https://github.com/Graylog2/graylog2-server/issues/5906"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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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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Action not permitted

GSD-2020-15813

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

Tags

Sightings

Nomenclature

Related by attack behaviour