StoredXSS-LibreNMS-MiscSection

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 24.10.1"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "librenms/librenms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "23.9.0"
            },
            {
              "fixed": "24.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-23200"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-16T17:32:55Z",
    "nvd_published_at": "2025-01-16T23:15:08Z",
    "severity": "MODERATE"
  },
  "details": "# StoredXSS-LibreNMS-MiscSection\n\n\n**Description:**\n\n\nStored XSS on the parameter: `ajax_form.php` -\u003e param: state\n\nRequest:\n```http\nPOST /ajax_form.php HTTP/1.1\nHost: \u003cyour_host\u003e\nX-Requested-With: XMLHttpRequest\nX-CSRF-TOKEN: \u003cyour_XSRF_token\u003e\nContent-Type: application/x-www-form-urlencoded; charset=UTF-8\nCookie: \u003cyour_cookie\u003e\n\ntype=override-config\u0026device_id=1\u0026attrib=override_icmp_disable\u0026state=\"\u003e\u003cimg%20src%20onerror=\"alert(1)\"\u003e \n```\n\n\nof Librenms version 24.10.1 ([https://github.com/librenms/librenms](https://github.com/librenms/librenms)) allows remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure.\n\n\nThe vulnerability in the line:\n```php\n$attrib_val = get_dev_attrib($device, $name);\n```\nwithin the `dynamic_override_config` function arises because the value of `$attrib_val is` retrieved from untrusted data without any sanitization or encoding (at [Line 778](https://github.com/librenms/librenms/blob/master/includes/html/functions.inc.php#L778)). \n\nWhen `dynamic_override_config` is called, the unescaped `$attrib_val` is injected directly into the HTML (at [misc.inc.php](https://github.com/librenms/librenms/blob/master/includes/html/pages/device/edit/misc.inc.php)).\n\n\n**Proof of Concept:**\n1. Add a new device through the LibreNMS interface.\n2. Edit the newly created device and select the Misc section.\n3. In any of the following fields: \"Override default ssh port\", \"Override default telnet port\", \"Override default http port\" or \"Unix agent port\", enter the payload: `\"\u003e\u003cimg src onerror=\"alert(document.cookie)\"\u003e`.\n4. Save the changes.\n5. Observe that when the page loads, the XSS payload executes, triggering a popup that displays the current cookies.\n\n\n\n![image](https://github.com/user-attachments/assets/097d17cb-7a6c-4924-add8-f867df643025)\n![image](https://github.com/user-attachments/assets/8213d55a-d87a-4a6e-94bf-092877398da5)\n\n\n**Impact:**\n\nExecution of Malicious Code",
  "id": "GHSA-c66p-64fj-jmc2",
  "modified": "2025-03-25T15:48:14Z",
  "published": "2025-01-16T17:32:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/librenms/librenms/security/advisories/GHSA-c66p-64fj-jmc2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23200"
    },
    {
      "type": "WEB",
      "url": "https://github.com/librenms/librenms/pull/16722"
    },
    {
      "type": "WEB",
      "url": "https://github.com/librenms/librenms/commit/26258a2518dbfa55b213ec4b90ec16ed97efb597"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/librenms/librenms"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LibreNMS Misc Section Stored Cross-site Scripting vulnerability"
}