ubuntu-cve-2016-9847
Vulnerability from osv_ubuntu
Published
2016-12-11 02:59
Modified
2025-09-08 16:43
Summary
Details

An issue was discovered in phpMyAdmin. When the user does not specify a blowfish_secret key for encrypting cookies, phpMyAdmin generates one at runtime. A vulnerability was reported where the way this value is created uses a weak algorithm. This could allow an attacker to determine the user's blowfish_secret and potentially decrypt their cookies. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.

Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "phpmyadmin",
            "binary_version": "4:4.0.10-1ubuntu0.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "phpmyadmin",
        "purl": "pkg:deb/ubuntu/phpmyadmin@4:4.0.10-1ubuntu0.1+esm4?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.0.6-1",
        "4:4.0.8-1",
        "4:4.0.9-1",
        "4:4.0.10-1",
        "4:4.0.10-1ubuntu0.1",
        "4:4.0.10-1ubuntu0.1+esm1",
        "4:4.0.10-1ubuntu0.1+esm2",
        "4:4.0.10-1ubuntu0.1+esm3",
        "4:4.0.10-1ubuntu0.1+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "phpmyadmin",
            "binary_version": "4:4.5.4.1-2ubuntu2.1+esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "phpmyadmin",
        "purl": "pkg:deb/ubuntu/phpmyadmin@4:4.5.4.1-2ubuntu2.1+esm6?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.4.13.1-1",
        "4:4.5.0.2-2",
        "4:4.5.1-1",
        "4:4.5.1-2",
        "4:4.5.1-3",
        "4:4.5.2-1",
        "4:4.5.2-2",
        "4:4.5.3.1-1",
        "4:4.5.4-1",
        "4:4.5.4.1-2",
        "4:4.5.4.1-2ubuntu1",
        "4:4.5.4.1-2ubuntu2",
        "4:4.5.4.1-2ubuntu2.1",
        "4:4.5.4.1-2ubuntu2.1+esm2",
        "4:4.5.4.1-2ubuntu2.1+esm3",
        "4:4.5.4.1-2ubuntu2.1+esm4",
        "4:4.5.4.1-2ubuntu2.1+esm5",
        "4:4.5.4.1-2ubuntu2.1+esm6"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in phpMyAdmin. When the user does not specify a blowfish_secret key for encrypting cookies, phpMyAdmin generates one at runtime. A vulnerability was reported where the way this value is created uses a weak algorithm. This could allow an attacker to determine the user\u0027s blowfish_secret and potentially decrypt their cookies. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.",
  "id": "UBUNTU-CVE-2016-9847",
  "modified": "2025-09-08T16:43:57Z",
  "published": "2016-12-11T02:59:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-9847"
    },
    {
      "type": "REPORT",
      "url": "https://www.phpmyadmin.net/security/PMASA-2016-58/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2016-9847"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2016-9847"
  ]
}



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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.