Vulnerability-Lookup

FKIE_CVE-2023-33965

Vulnerability from fkie_nvd - Published: 2023-06-01 15:15 - Updated: 2026-06-17 06:02

Severity

9.6 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

Brook is a cross-platform programmable network tool. The `tproxy` server is vulnerable to a drive-by command injection. An attacker may fool a victim into visiting a malicious web page which will trigger requests to the local `tproxy` service leading to remote code execution. A patch is available in version 20230606.

References

URL	Tags
security-advisories@github.com	https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e	Patch
security-advisories@github.com	https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf	Vendor Advisory

Impacted products

	Vendor	Product	Version
	txthinking	brook	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "brook",
          "vendor": "txthinking",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 20230606"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:txthinking:brook:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A079F0BB-D10F-4DD8-AAEF-CA30E1201727",
              "versionEndExcluding": "20230606",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Brook is a cross-platform programmable network tool. The `tproxy` server is vulnerable to a drive-by command injection. An attacker may fool a victim into visiting a malicious web page which will trigger requests to the local `tproxy` service leading to remote code execution. A patch is available in version 20230606."
    }
  ],
  "id": "CVE-2023-33965",
  "lastModified": "2026-06-17T06:02:36.980",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-33965",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-01-09T16:56:36.455137Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-06-01T15:15:09.213",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-33965 (GCVE-0-2023-33965)

Vulnerability from cvelistv5 – Published: 2023-06-01 14:10 – Updated: 2025-01-09 16:57

Title

Brook's tproxy server is vulnerable to a drive-by command injection.

Summary

Severity

9.7 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-09 16:56 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/txthinking/brook/security/advi…	x_refsource_CONFIRM
https://github.com/txthinking/brook/commit/314d70…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
txthinking	brook	Affected: < 20230606

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T15:54:14.106Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf"
          },
          {
            "name": "https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-33965",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-09T16:56:36.455137Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-09T16:57:06.896Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "brook",
          "vendor": "txthinking",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 20230606"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Brook is a cross-platform programmable network tool. The `tproxy` server is vulnerable to a drive-by command injection. An attacker may fool a victim into visiting a malicious web page which will trigger requests to the local `tproxy` service leading to remote code execution. A patch is available in version 20230606."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.7,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-01T14:10:54.644Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/txthinking/brook/security/advisories/GHSA-vfrj-fv6p-3cpf"
        },
        {
          "name": "https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/txthinking/brook/commit/314d7070c37babf6c38a0fe1eada872bb74bf03e"
        }
      ],
      "source": {
        "advisory": "GHSA-vfrj-fv6p-3cpf",
        "discovery": "UNKNOWN"
      },
      "title": "Brook\u0027s tproxy server is vulnerable to a drive-by command injection."
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-33965",
    "datePublished": "2023-06-01T14:10:54.644Z",
    "dateReserved": "2023-05-24T13:46:35.953Z",
    "dateUpdated": "2025-01-09T16:57:06.896Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.