CVE-2020-1946 (GCVE-0-2020-1946)

Vulnerability from cvelistv5 – Published: 2021-03-25 09:20 – Updated: 2025-02-13 16:27
VLAI
Title
Apache SpamAssassin has an OS Command Injection vulnerability
Summary
In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - OS Command Injection
Assigner
References
URL Tags
https://s.apache.org/3r1wh x_refsource_MISC
https://www.debian.org/security/2021/dsa-4879 vendor-advisoryx_refsource_DEBIAN
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021… mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202105-26 vendor-advisoryx_refsource_GENTOO
Impacted products
Vendor Product Version
Apache Software Foundation Apache SpamAssassin Affected: Apache SpamAssassin , < 3.4.5 (custom)
Create a notification for this product.
Credits
Apache SpamAssassin would like to thank Damian Lukowski at credativ for ethically reporting this issue.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T06:54:00.396Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://s.apache.org/3r1wh"
          },
          {
            "name": "DSA-4879",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4879"
          },
          {
            "name": "FEDORA-2021-bf06dcffa8",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V2SBVTKVLFFT36ECJQ7TQ7KAQCQZDRZ/"
          },
          {
            "name": "[debian-lts-announce] 20210401 [SECURITY] [DLA 2615-1] spamassassin security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00000.html"
          },
          {
            "name": "FEDORA-2021-90e915cc4f",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFBFRIG5TX23NF4ND6OAKKY7I6TLRCCP/"
          },
          {
            "name": "FEDORA-2021-5a4377797c",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKAXYBKBMQOLIW6UKASJCAZRBOIYS4RL/"
          },
          {
            "name": "GLSA-202105-26",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202105-26"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Apache SpamAssassin",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.4.5",
              "status": "affected",
              "version": "Apache SpamAssassin",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Apache SpamAssassin would like to thank Damian Lukowski at credativ for ethically reporting this issue."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78 OS Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-08-04T06:54:56.000Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://s.apache.org/3r1wh"
        },
        {
          "name": "DSA-4879",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4879"
        },
        {
          "name": "FEDORA-2021-bf06dcffa8",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V2SBVTKVLFFT36ECJQ7TQ7KAQCQZDRZ/"
        },
        {
          "name": "[debian-lts-announce] 20210401 [SECURITY] [DLA 2615-1] spamassassin security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00000.html"
        },
        {
          "name": "FEDORA-2021-90e915cc4f",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFBFRIG5TX23NF4ND6OAKKY7I6TLRCCP/"
        },
        {
          "name": "FEDORA-2021-5a4377797c",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKAXYBKBMQOLIW6UKASJCAZRBOIYS4RL/"
        },
        {
          "name": "GLSA-202105-26",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202105-26"
        }
      ],
      "source": {
        "defect": [
          "https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7793"
        ],
        "discovery": "UNKNOWN"
      },
      "title": "Apache SpamAssassin has an OS Command Injection vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@apache.org",
          "ID": "CVE-2020-1946",
          "STATE": "PUBLIC",
          "TITLE": "Apache SpamAssassin has an OS Command Injection vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Apache SpamAssassin",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "Apache SpamAssassin",
                            "version_value": "3.4.5"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Apache Software Foundation"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Apache SpamAssassin would like to thank Damian Lukowski at credativ for ethically reporting this issue."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-78 OS Command Injection"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://s.apache.org/3r1wh",
              "refsource": "MISC",
              "url": "https://s.apache.org/3r1wh"
            },
            {
              "name": "DSA-4879",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4879"
            },
            {
              "name": "FEDORA-2021-bf06dcffa8",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7V2SBVTKVLFFT36ECJQ7TQ7KAQCQZDRZ/"
            },
            {
              "name": "[debian-lts-announce] 20210401 [SECURITY] [DLA 2615-1] spamassassin security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00000.html"
            },
            {
              "name": "FEDORA-2021-90e915cc4f",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JFBFRIG5TX23NF4ND6OAKKY7I6TLRCCP/"
            },
            {
              "name": "FEDORA-2021-5a4377797c",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKAXYBKBMQOLIW6UKASJCAZRBOIYS4RL/"
            },
            {
              "name": "GLSA-202105-26",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202105-26"
            }
          ]
        },
        "source": {
          "defect": [
            "https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7793"
          ],
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2020-1946",
    "datePublished": "2021-03-25T09:20:11.000Z",
    "dateReserved": "2019-12-02T00:00:00.000Z",
    "dateUpdated": "2025-02-13T16:27:40.012Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-1946",
      "date": "2026-06-04",
      "epss": "0.03407",
      "percentile": "0.87648"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-1946\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2021-03-25T10:15:11.727\",\"lastModified\":\"2024-11-21T05:11:42.607\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.\"},{\"lang\":\"es\",\"value\":\"En Apache SpamAssassin anterior a versi\u00f3n 3.4.5, los archivos de configuraci\u00f3n de reglas maliciosas (.cf) se pueden configurar para ejecutar comandos del sistema sin ning\u00fan resultado ni errores.\u0026#xa0;Con esto, las explotaciones se pueden inyectar en varios escenarios.\u0026#xa0;Adem\u00e1s de actualizar a la versi\u00f3n 3.4.5 de SA, los usuarios solo deben usar canales de actualizaci\u00f3n o archivos .cf de terceros desde lugares de confianza\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":10.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:spamassassin:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"3.4.5\",\"matchCriteriaId\":\"6B2EC96E-432A-4D9F-95C7-051CBE121C7D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"36D96259-24BD-44E2-96D9-78CE1D41F956\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E460AA51-FCDA-46B9-AE97-E6676AA5E194\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A930E247-0B43-43CB-98FF-6CE7B8189835\"}]}]}],\"references\":[{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/04/msg00000.html\",\"source\":\"security@apache.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V2SBVTKVLFFT36ECJQ7TQ7KAQCQZDRZ/\",\"source\":\"security@apache.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFBFRIG5TX23NF4ND6OAKKY7I6TLRCCP/\",\"source\":\"security@apache.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKAXYBKBMQOLIW6UKASJCAZRBOIYS4RL/\",\"source\":\"security@apache.org\"},{\"url\":\"https://s.apache.org/3r1wh\",\"source\":\"security@apache.org\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202105-26\",\"source\":\"security@apache.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4879\",\"source\":\"security@apache.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/04/msg00000.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V2SBVTKVLFFT36ECJQ7TQ7KAQCQZDRZ/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFBFRIG5TX23NF4ND6OAKKY7I6TLRCCP/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKAXYBKBMQOLIW6UKASJCAZRBOIYS4RL/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://s.apache.org/3r1wh\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202105-26\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4879\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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.