Vulnerability-Lookup

GHSA-4F68-49QQ-H392

Vulnerability from github – Published: 2021-05-24 18:12 – Updated: 2023-09-05 21:47

Summary

Improper certificate validation in em-imap

Details

em-imap 0.5 and earlier use the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.

Severity ?

7.4 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "em-imap"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-13163"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-20T22:25:15Z",
    "nvd_published_at": "2020-05-19T22:15:00Z",
    "severity": "HIGH"
  },
  "details": "em-imap 0.5 and earlier use the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.",
  "id": "GHSA-4f68-49qq-h392",
  "modified": "2023-09-05T21:47:52Z",
  "published": "2021-05-24T18:12:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13163"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ConradIrwin/em-imap/issues/25"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ConradIrwin/em-imap"
    },
    {
      "type": "ADVISORY",
      "url": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper certificate validation in em-imap"
}

GSD-2020-13163

Vulnerability from gsd - Updated: 2021-05-24 00:00

Details

Aliases

CVE-2020-13163

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-13163",
    "description": "em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.",
    "id": "GSD-2020-13163"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "em-imap",
            "purl": "pkg:gem/em-imap"
          }
        }
      ],
      "aliases": [
        "CVE-2020-13163",
        "GHSA-4f68-49qq-h392"
      ],
      "details": "em-imap 0.5 and earlier use the library eventmachine in an insecure way\nthat allows an attacker to perform a man-in-the-middle attack against users of the\nlibrary. The hostname in a TLS server certificate is not verified.\n",
      "id": "GSD-2020-13163",
      "modified": "2021-05-24T00:00:00.000Z",
      "published": "2021-05-24T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/advisories/GHSA-4f68-49qq-h392"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.4,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Improper certificate validation in em-imap"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-13163",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/ConradIrwin/em-imap/issues/25",
            "refsource": "MISC",
            "url": "https://github.com/ConradIrwin/em-imap/issues/25"
          },
          {
            "name": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap",
            "refsource": "MISC",
            "url": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2020-13163",
      "cvss_v3": 7.4,
      "date": "2021-05-24",
      "description": "em-imap 0.5 and earlier use the library eventmachine in an insecure way\nthat allows an attacker to perform a man-in-the-middle attack against users of the\nlibrary. The hostname in a TLS server certificate is not verified.\n",
      "gem": "em-imap",
      "ghsa": "4f68-49qq-h392",
      "title": "Improper certificate validation in em-imap",
      "url": "https://github.com/advisories/GHSA-4f68-49qq-h392"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "=0.5",
          "affected_versions": "Version 0.5",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-295",
            "CWE-937"
          ],
          "date": "2021-03-04",
          "description": "em-imap uses the library eventmachine insecurely, allowing an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.",
          "fixed_versions": [],
          "identifier": "CVE-2020-13163",
          "identifiers": [
            "CVE-2020-13163"
          ],
          "not_impacted": "",
          "package_slug": "gem/em-imap",
          "pubdate": "2020-05-19",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-13163"
          ],
          "uuid": "f1218f9d-c2d4-4b22-98f0-0c0fac27f7cb"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:em-imap_project:em-imap:0.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-13163"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-295"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/ConradIrwin/em-imap/issues/25",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://github.com/ConradIrwin/em-imap/issues/25"
            },
            {
              "name": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "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:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2021-03-04T21:20Z",
      "publishedDate": "2020-05-19T22:15Z"
    }
  }
}

CVE-2020-13163 (GCVE-0-2020-13163)

Vulnerability from cvelistv5 – Published: 2020-05-19 21:22 – Updated: 2024-08-04 12:11

Summary

em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/ConradIrwin/em-imap/issues/25	x_refsource_MISC
	https://securitylab.github.com/advisories/GHSL-20…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:11:19.175Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/ConradIrwin/em-imap/issues/25"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-22T01:06:50",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ConradIrwin/em-imap/issues/25"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-13163",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/ConradIrwin/em-imap/issues/25",
              "refsource": "MISC",
              "url": "https://github.com/ConradIrwin/em-imap/issues/25"
            },
            {
              "name": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap",
              "refsource": "MISC",
              "url": "https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-13163",
    "datePublished": "2020-05-19T21:22:57",
    "dateReserved": "2020-05-19T00:00:00",
    "dateUpdated": "2024-08-04T12:11:19.175Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-4F68-49QQ-H392

GSD-2020-13163

CVE-2020-13163 (GCVE-0-2020-13163)

Tags

Sightings

Nomenclature