FKIE_CVE-2026-42167

Vulnerability from fkie_nvd - Published: 2026-04-28 23:16 - Updated: 2026-07-08 03:26
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).
References
cve@mitre.orghttp://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1Release Notes
cve@mitre.orghttps://github.com/ZeroPathAI/proftpd-CVE-2026-42167-pocExploit, Third Party Advisory
cve@mitre.orghttps://github.com/proftpd/proftpd/issues/2052Exploit, Issue Tracking, Patch
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2026/05/01/4Mailing List
cve@mitre.orghttps://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rceExploit, Press/Media Coverage, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/05/01/13Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/05/01/4Mailing List
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-pocExploit, Third Party Advisory
Impacted products
Vendor Product Version
proftpd proftpd *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "ProFTPD",
          "vendor": "ProFTPD",
          "versions": [
            {
              "lessThan": "1.3.9a",
              "status": "affected",
              "version": "1.3.7b",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AB7EA00C-FD1D-4028-8DFF-4287D5CA721F",
              "versionEndIncluding": "1.3.9b",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM)."
    }
  ],
  "id": "CVE-2026-42167",
  "lastModified": "2026-07-08T03:26:55.713",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "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:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-42167",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-29T12:51:40.626237Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-28T23:16:20.610",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ],
      "url": "http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/proftpd/proftpd/issues/2052"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2026/05/01/4"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Press/Media Coverage",
        "Third Party Advisory"
      ],
      "url": "https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rce"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/05/01/13"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/05/01/4"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



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