GSD-2020-28896

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.
Aliases
Aliases
CVE-2020-28896
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{
  "GSD": {
    "alias": "CVE-2020-28896",
    "description": "Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server\u0027s initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.",
    "id": "GSD-2020-28896",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-28896.html",
      "https://access.redhat.com/errata/RHSA-2021:4181",
      "https://ubuntu.com/security/CVE-2020-28896",
      "https://advisories.mageia.org/CVE-2020-28896.html",
      "https://security.archlinux.org/CVE-2020-28896",
      "https://linux.oracle.com/cve/CVE-2020-28896.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-28896"
      ],
      "details": "Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server\u0027s initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.",
      "id": "GSD-2020-28896",
      "modified": "2023-12-13T01:22:01.862673Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-28896",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
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                  {
                    "product_name": "n/a",
                    "version": {
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                          "version_value": "n/a"
                        }
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            "value": "Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server\u0027s initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle."
          }
        ]
      },
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                "value": "n/a"
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          {
            "name": "https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d9984f8f",
            "refsource": "MISC",
            "url": "https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d9984f8f"
          },
          {
            "name": "https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a",
            "refsource": "MISC",
            "url": "https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a"
          },
          {
            "name": "https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06",
            "refsource": "MISC",
            "url": "https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06"
          },
          {
            "name": "https://github.com/neomutt/neomutt/releases/tag/20201120",
            "refsource": "MISC",
            "url": "https://github.com/neomutt/neomutt/releases/tag/20201120"
          },
          {
            "name": "[debian-lts-announce] 20201130 [SECURITY] [DLA 2472-1] mutt security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html"
          },
          {
            "name": "GLSA-202101-32",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202101-32"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.0.2",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:neomutt:neomutt:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2020-11-20",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
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                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
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          "ASSIGNER": "cve@mitre.org",
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        },
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        "description": {
          "description_data": [
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              "value": "Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server\u0027s initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-287"
                },
                {
                  "lang": "en",
                  "value": "CWE-755"
                }
              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06",
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              "tags": [
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              "url": "https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06"
            },
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              "refsource": "MISC",
              "tags": [
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              "url": "https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d9984f8f"
            },
            {
              "name": "https://github.com/neomutt/neomutt/releases/tag/20201120",
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              "tags": [
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                "Third Party Advisory"
              ],
              "url": "https://github.com/neomutt/neomutt/releases/tag/20201120"
            },
            {
              "name": "https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a"
            },
            {
              "name": "[debian-lts-announce] 20201130 [SECURITY] [DLA 2472-1] mutt security update",
              "refsource": "MLIST",
              "tags": [
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              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html"
            },
            {
              "name": "GLSA-202101-32",
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              "tags": [
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              ],
              "url": "https://security.gentoo.org/glsa/202101-32"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.6,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 4.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-07-21T11:39Z",
      "publishedDate": "2020-11-23T19:15Z"
    }
  }
}


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  • 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.
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