ghsa-rcw6-69h3-89fh
Vulnerability from github
Published
2022-05-24 17:07
Modified
2025-10-22 00:31
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-7247"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-252",
      "CWE-755",
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-01-29T16:15:00Z",
    "severity": "HIGH"
  },
  "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": "GHSA-rcw6-69h3-89fh",
  "modified": "2025-10-22T00:31:50Z",
  "published": "2022-05-24T17:07:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7247"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2020/Jan/51"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4268-1"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7247"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4611"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/390745"
    },
    {
      "type": "WEB",
      "url": "https://www.openbsd.org/security.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2020/Jan/49"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/01/28/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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