gsd-2020-7247
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
Aliases
Aliases
CVE-2020-7247


To clipboard 

{
   GSD: {
      alias: "CVE-2020-7247",
      description: "smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the \"uncommented\" default configuration. The issue exists because of an incorrect return value upon failure of input validation.",
      id: "GSD-2020-7247",
      references: [
         "https://www.suse.com/security/cve/CVE-2020-7247.html",
         "https://www.debian.org/security/2020/dsa-4611",
         "https://ubuntu.com/security/CVE-2020-7247",
         "https://security.archlinux.org/CVE-2020-7247",
         "https://packetstormsecurity.com/files/cve/CVE-2020-7247",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2020-7247",
         ],
         details: "smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the \"uncommented\" default configuration. The issue exists because of an incorrect return value upon failure of input validation.",
         id: "GSD-2020-7247",
         modified: "2023-12-13T01:21:52.028233Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cisa.gov": {
         cveID: "CVE-2020-7247",
         dateAdded: "2022-03-25",
         dueDate: "2022-04-15",
         product: "OpenSMTPD",
         requiredAction: "Apply updates per vendor instructions.",
         shortDescription: "smtp_mailaddr in smtp_session.c in OpenSMTPD, as used in OpenBSD and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session.",
         vendorProject: "OpenBSD",
         vulnerabilityName: "OpenSMTPD Remote Code Execution Vulnerability",
      },
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@mitre.org",
            ID: "CVE-2020-7247",
            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: "smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the \"uncommented\" default configuration. The issue exists because of an incorrect return value upon failure of input validation.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "n/a",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://www.openbsd.org/security.html",
                  refsource: "CONFIRM",
                  url: "https://www.openbsd.org/security.html",
               },
               {
                  name: "http://www.openwall.com/lists/oss-security/2020/01/28/3",
                  refsource: "MISC",
                  url: "http://www.openwall.com/lists/oss-security/2020/01/28/3",
               },
               {
                  name: "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
                  refsource: "CONFIRM",
                  url: "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
               },
               {
                  name: "http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html",
               },
               {
                  name: "20200129 [SECURITY] [DSA 4611-1] opensmtpd security update",
                  refsource: "BUGTRAQ",
                  url: "https://seclists.org/bugtraq/2020/Jan/51",
               },
               {
                  name: "DSA-4611",
                  refsource: "DEBIAN",
                  url: "https://www.debian.org/security/2020/dsa-4611",
               },
               {
                  name: "http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html",
               },
               {
                  name: "VU#390745",
                  refsource: "CERT-VN",
                  url: "https://www.kb.cert.org/vuls/id/390745",
               },
               {
                  name: "20200131 LPE and RCE in OpenSMTPD (CVE-2020-7247)",
                  refsource: "FULLDISC",
                  url: "http://seclists.org/fulldisclosure/2020/Jan/49",
               },
               {
                  name: "http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html",
               },
               {
                  name: "http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html",
               },
               {
                  name: "USN-4268-1",
                  refsource: "UBUNTU",
                  url: "https://usn.ubuntu.com/4268-1/",
               },
               {
                  name: "FEDORA-2020-b92d7083ca",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/",
               },
               {
                  name: "http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:openbsd:opensmtpd:6.6:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "cve@mitre.org",
               ID: "CVE-2020-7247",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the \"uncommented\" default configuration. The issue exists because of an incorrect return value upon failure of input validation.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-78",
                        },
                        {
                           lang: "en",
                           value: "CWE-755",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
                     refsource: "CONFIRM",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
                  },
                  {
                     name: "http://www.openwall.com/lists/oss-security/2020/01/28/3",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "http://www.openwall.com/lists/oss-security/2020/01/28/3",
                  },
                  {
                     name: "https://www.openbsd.org/security.html",
                     refsource: "CONFIRM",
                     tags: [
                        "Patch",
                        "Vendor Advisory",
                     ],
                     url: "https://www.openbsd.org/security.html",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                        "VDB Entry",
                     ],
                     url: "http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html",
                  },
                  {
                     name: "20200129 [SECURITY] [DSA 4611-1] opensmtpd security update",
                     refsource: "BUGTRAQ",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://seclists.org/bugtraq/2020/Jan/51",
                  },
                  {
                     name: "DSA-4611",
                     refsource: "DEBIAN",
                     tags: [
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                     url: "https://www.debian.org/security/2020/dsa-4611",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html",
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                        "VDB Entry",
                     ],
                     url: "http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html",
                  },
                  {
                     name: "VU#390745",
                     refsource: "CERT-VN",
                     tags: [
                        "Third Party Advisory",
                        "US Government Resource",
                     ],
                     url: "https://www.kb.cert.org/vuls/id/390745",
                  },
                  {
                     name: "20200131 LPE and RCE in OpenSMTPD (CVE-2020-7247)",
                     refsource: "FULLDISC",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "http://seclists.org/fulldisclosure/2020/Jan/49",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                        "VDB Entry",
                     ],
                     url: "http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                        "VDB Entry",
                     ],
                     url: "http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html",
                  },
                  {
                     name: "USN-4268-1",
                     refsource: "UBUNTU",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://usn.ubuntu.com/4268-1/",
                  },
                  {
                     name: "FEDORA-2020-b92d7083ca",
                     refsource: "FEDORA",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html",
                     refsource: "MISC",
                     tags: [
                        "Broken Link",
                     ],
                     url: "http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "COMPLETE",
                  baseScore: 10,
                  confidentialityImpact: "COMPLETE",
                  integrityImpact: "COMPLETE",
                  vectorString: "AV:N/AC:L/Au:N/C:C/I:C/A:C",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               impactScore: 10,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "HIGH",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 9.8,
                  baseSeverity: "CRITICAL",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 5.9,
            },
         },
         lastModifiedDate: "2022-04-29T13:24Z",
         publishedDate: "2020-01-29T16:15Z",
      },
   },
}


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