CVE-2024-2466 (GCVE-0-2024-2466)

Vulnerability from cvelistv5 – Published: 2024-03-27 07:58 – Updated: 2025-02-13 17:40
VLAI
Title
TLS certificate check bypass with mbedTLS
Summary
libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-23 18:43 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
curl curl Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Create a notification for this product.
curl libcurl Affected: 8.5.0 , ≤ 8.6.0 (custom)
    cpe:2.3:a:curl:libcurl:8.5.0:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Frank Yueh Stefan Eissing
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-19T07:47:51.205Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "json",
            "tags": [
              "x_transferred"
            ],
            "url": "https://curl.se/docs/CVE-2024-2466.json"
          },
          {
            "name": "www",
            "tags": [
              "x_transferred"
            ],
            "url": "https://curl.se/docs/CVE-2024-2466.html"
          },
          {
            "name": "issue",
            "tags": [
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/2416725"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/03/27/4"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240503-0010/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT214119"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT214118"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT214120"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2024/Jul/20"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2024/Jul/18"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2024/Jul/19"
          },
          {
            "url": "https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:curl:libcurl:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "libcurl",
            "vendor": "curl",
            "versions": [
              {
                "lessThanOrEqual": "8.6.0",
                "status": "affected",
                "version": "8.5.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-2466",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-23T18:43:18.887717Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-297",
                "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-08-23T18:46:47.386Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Frank Yueh"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stefan Eissing"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS.  libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc)."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-07-29T22:06:23.736Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2024-2466.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2024-2466.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/2416725"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/03/27/4"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240503-0010/"
        },
        {
          "url": "https://support.apple.com/kb/HT214119"
        },
        {
          "url": "https://support.apple.com/kb/HT214118"
        },
        {
          "url": "https://support.apple.com/kb/HT214120"
        },
        {
          "url": "http://seclists.org/fulldisclosure/2024/Jul/20"
        },
        {
          "url": "http://seclists.org/fulldisclosure/2024/Jul/18"
        },
        {
          "url": "http://seclists.org/fulldisclosure/2024/Jul/19"
        }
      ],
      "title": "TLS certificate check bypass with mbedTLS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2024-2466",
    "datePublished": "2024-03-27T07:58:24.520Z",
    "dateReserved": "2024-03-14T17:21:59.730Z",
    "dateUpdated": "2025-02-13T17:40:16.744Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-2466",
      "date": "2026-10-03",
      "epss": "0.01333",
      "percentile": "0.70145"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-19T07:47:51.205Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "name": "json",
                "tags": [
                  "x_transferred"
                ],
                "url": "https://curl.se/docs/CVE-2024-2466.json"
              },
              {
                "name": "www",
                "tags": [
                  "x_transferred"
                ],
                "url": "https://curl.se/docs/CVE-2024-2466.html"
              },
              {
                "name": "issue",
                "tags": [
                  "x_transferred"
                ],
                "url": "https://hackerone.com/reports/2416725"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "http://www.openwall.com/lists/oss-security/2024/03/27/4"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://security.netapp.com/advisory/ntap-20240503-0010/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://support.apple.com/kb/HT214119"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://support.apple.com/kb/HT214118"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://support.apple.com/kb/HT214120"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2024/Jul/20"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2024/Jul/18"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2024/Jul/19"
              },
              {
                "url": "https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:a:curl:libcurl:8.5.0:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "product": "libcurl",
                "vendor": "curl",
                "versions": [
                  {
                    "lessThanOrEqual": "8.6.0",
                    "status": "affected",
                    "version": "8.5.0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "NONE",
                  "baseScore": 6.5,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "LOW",
                  "integrityImpact": "LOW",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-2466",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-08-23T18:43:18.887717Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-297",
                    "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-08-23T18:46:40.548Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "curl",
              "vendor": "curl",
              "versions": [
                {
                  "lessThanOrEqual": "8.6.0",
                  "status": "affected",
                  "version": "8.6.0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "8.5.0",
                  "status": "affected",
                  "version": "8.5.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Frank Yueh"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Stefan Eissing"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS.  libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc)."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
                  "lang": "en"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-07-29T22:06:23.736Z",
            "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "shortName": "curl"
          },
          "references": [
            {
              "name": "json",
              "url": "https://curl.se/docs/CVE-2024-2466.json"
            },
            {
              "name": "www",
              "url": "https://curl.se/docs/CVE-2024-2466.html"
            },
            {
              "name": "issue",
              "url": "https://hackerone.com/reports/2416725"
            },
            {
              "url": "http://www.openwall.com/lists/oss-security/2024/03/27/4"
            },
            {
              "url": "https://security.netapp.com/advisory/ntap-20240503-0010/"
            },
            {
              "url": "https://support.apple.com/kb/HT214119"
            },
            {
              "url": "https://support.apple.com/kb/HT214118"
            },
            {
              "url": "https://support.apple.com/kb/HT214120"
            },
            {
              "url": "http://seclists.org/fulldisclosure/2024/Jul/20"
            },
            {
              "url": "http://seclists.org/fulldisclosure/2024/Jul/18"
            },
            {
              "url": "http://seclists.org/fulldisclosure/2024/Jul/19"
            }
          ],
          "title": "TLS certificate check bypass with mbedTLS"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "assignerShortName": "curl",
        "cveId": "CVE-2024-2466",
        "datePublished": "2024-03-27T07:58:24.520Z",
        "dateReserved": "2024-03-14T17:21:59.730Z",
        "dateUpdated": "2025-02-13T17:40:16.744Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.