Security advisory

{
  "id": "8e832af576077755f314a2029dae8b201c24ff3362aa293850847f2ba2dcd269",
  "url": "https://osv.dev/vulnerability/CVE-2017-18264",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-18264",
    "summary": "An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.",
    "evidence": "osv:CVE-2017-18264",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-18264",
      "aliases": [
        "CVE-2017-18264",
        "GHSA-5868-g58j-vrj5"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phpmyadmin/phpmyadmin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6da64cc3b2ba4439574f914f51e161645375be96"
                },
                {
                  "fixed": "9a9a6ab709eb6b1b2e82b7a15851ae93a31e9e45"
                },
                {
                  "introduced": "1fe735d098d82ad79500eab04c4d25ba8fe25a24"
                },
                {
                  "last_affected": "fbd634d4c1d668e77ad15cdb38c4a85db5c75002"
                },
                {
                  "introduced": "37b38431d167915675fc8ab512470528147e72de"
                },
                {
                  "last_affected": "c812bcd4112c3d44e6e6bc72e710b9935c6aa9d3"
                },
                {
                  "introduced": "62c6e73cc5601ecd6cf839874c038a991c7b5b97"
                },
                {
                  "last_affected": "507f335777aa82c16f6fcf691a4e7b3e4b7e98ce"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.0.10.20"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4.0"
                      },
                      {
                        "last_affected": "4.4.15.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.6.0"
                      },
                      {
                        "last_affected": "4.6.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:beta1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.0-beta1"
                      },
                      {
                        "last_affected": "4.7.0-beta1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:rc1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.0-rc1"
                      },
                      {
                        "last_affected": "4.7.0-rc1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.7.0-beta1",
            "4.7.0-rc1",
            "RELEASE_4_7_0RC1",
            "RELEASE_4_7_0BETA1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18264.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:25.700310496Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html",
        "https://www.phpmyadmin.net/security/PMASA-2017-8/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-18264",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431428,
  "published_at": "2018-05-01T17:29:00.237+00:00"
}